[stdlib][WIP perf experiment] Give Array types a custom Iterator #9145

airspeedswift · 2017-05-01T00:22:01Z

Replacing IndexingIterator with a custom iterator for array types that stores the _buffer.

Ideally this would be a nested type but that seems to be crashing the compiler.

airspeedswift · 2017-05-01T00:22:09Z

@swift-ci please smoke benchmark

swift-ci · 2017-05-01T02:25:54Z

Build comment file:

Optimized (O)

Regression (15)

TEST	OLD	NEW	DELTA	SPEEDUP
BitCount	0	1	+100000.0%	0.00x
ArrayValueProp2	6	1203	+19946.7%	0.00x
ObjectAllocation	182	243	+33.5%	0.75x
StringBuilder	1388	1740	+25.4%	0.80x
DropLastSequence	514	635	+23.5%	0.81x
DropLastSequenceLazy	518	634	+22.4%	0.82x
StringUTF16Builder	2178	2559	+17.5%	0.85x
DropWhileSequenceLazy	67	76	+13.4%	0.88x
StringHasPrefix	703	795	+13.1%	0.88x
ProtocolDispatch	2727	3031	+11.1%	0.90x
NopDeinit	27538	30465	+10.6%	0.90x
DropWhileArray	42	46	+9.5%	0.91x
PrefixWhileArray	66	71	+7.6%	0.93x
ProtocolDispatch2	160	169	+5.6%	0.95x
OpenClose	54	57	+5.6%	0.95x

Improvement (24)

TEST	OLD	NEW	DELTA	SPEEDUP
UTF8Decode	278	0	-100.0%	278001.00x
PrefixWhileAnySeqCRangeIter	12502	3653	-70.8%	3.42x
SuffixSequenceLazy	4471	1482	-66.9%	3.02x
SuffixSequence	4474	1483	-66.9%	3.02x
DropLastAnySeqCRangeIterLazy	4612	1661	-64.0%	2.78x
DropLastAnySeqCRangeIter	4607	1661	-63.9%	2.77x
PrefixWhileAnySequence	14050	5135	-63.5%	2.74x
SuffixAnySeqCRangeIter	4925	1981	-59.8%	2.49x
SuffixAnySeqCRangeIterLazy	4923	1982	-59.7%	2.48x
DropLastAnySequenceLazy	6523	3571	-45.3%	1.83x
SuffixAnySequenceLazy	6549	3649	-44.3%	1.79x
DropLastAnySequence	6722	3783	-43.7%	1.78x
SuffixAnySequence	6701	3810	-43.1%	1.76x
DropWhileArrayLazy	80	70	-12.5%	1.14x
PrefixArrayLazy	33	29	-12.1%	1.14x
PrefixWhileArrayLazy	58	51	-12.1%	1.14x
SuffixArrayLazy	11	10	-9.1%	1.10x
ReversedArray	53	49	-7.5%	1.08x
StringHasSuffix	905	848	-6.3%	1.07x
CaptureProp	4852	4594	-5.3%	1.06x
DropFirstAnySequenceLazy	7184	6804	-5.3%	1.06x
PrefixAnySequence	6432	6092	-5.3%	1.06x
PrefixAnySequenceLazy	6443	6111	-5.2%	1.05x
DropFirstAnySequence	7179	6833	-4.8%	1.05x

No Changes (230)

TEST	OLD	NEW	DELTA	SPEEDUP
AngryPhonebook	2954	2918	-1.2%	1.01x
AnyHashableWithAClass	68619	67274	-2.0%	1.02x
Array2D	2146	2052	-4.4%	1.05x (?)
ArrayAppend	773	770	-0.4%	1.00x (?)
ArrayAppendArrayOfInt	597	596	-0.2%	1.00x
ArrayAppendAscii	20225	19913	-1.5%	1.02x (?)
ArrayAppendFromGeneric	597	596	-0.2%	1.00x
ArrayAppendGenericStructs	1232	1227	-0.4%	1.00x
ArrayAppendLatin1	45366	45414	+0.1%	1.00x (?)
ArrayAppendLazyMap	1015	1002	-1.3%	1.01x (?)
ArrayAppendOptionals	1242	1233	-0.7%	1.01x (?)
ArrayAppendRepeatCol	838	838	+0.0%	1.00x
ArrayAppendReserved	534	534	+0.0%	1.00x
ArrayAppendSequence	949	947	-0.2%	1.00x
ArrayAppendStrings	13644	13626	-0.1%	1.00x (?)
ArrayAppendToFromGeneric	596	596	+0.0%	1.00x
ArrayAppendToGeneric	597	596	-0.2%	1.00x
ArrayAppendUTF16	44083	43712	-0.8%	1.01x (?)
ArrayInClass	62	62	+0.0%	1.00x
ArrayLiteral	1228	1232	+0.3%	1.00x (?)
ArrayOfGenericPOD	219	219	+0.0%	1.00x
ArrayOfGenericRef	4052	4030	-0.5%	1.01x (?)
ArrayOfPOD	166	166	+0.0%	1.00x
ArrayOfRef	3909	3900	-0.2%	1.00x (?)
ArrayPlusEqualArrayOfInt	597	596	-0.2%	1.00x (?)
ArrayPlusEqualFiveElementCollection	4670	4675	+0.1%	1.00x (?)
ArrayPlusEqualSingleElementCollection	773	773	+0.0%	1.00x
ArrayPlusEqualThreeElements	1605	1593	-0.7%	1.01x (?)
ArraySubscript	1506	1510	+0.3%	1.00x (?)
ArrayValueProp	6	6	+0.0%	1.00x
ArrayValueProp3	6	6	+0.0%	1.00x
ArrayValueProp4	6	6	+0.0%	1.00x
ByteSwap	0	0	+0.0%	1.00x
CStringLongAscii	13572	13686	+0.8%	0.99x
CStringLongNonAscii	4167	4207	+1.0%	0.99x
CStringShortAscii	6071	6128	+0.9%	0.99x (?)
Calculator	45	43	-4.4%	1.05x
CharacterLiteralsLarge	10640	10590	-0.5%	1.00x
CharacterLiteralsSmall	778	779	+0.1%	1.00x
Chars	1388	1382	-0.4%	1.00x
ClassArrayGetter	14	14	+0.0%	1.00x
DeadArray	181	186	+2.8%	0.97x (?)
Dictionary	828	826	-0.2%	1.00x (?)
Dictionary2	2084	2084	+0.0%	1.00x
Dictionary2OfObjects	3620	3630	+0.3%	1.00x (?)
Dictionary3	602	603	+0.2%	1.00x (?)
Dictionary3OfObjects	1089	1087	-0.2%	1.00x (?)
DictionaryBridge	2816	2831	+0.5%	0.99x (?)
DictionaryLiteral	1495	1476	-1.3%	1.01x (?)
DictionaryOfObjects	2677	2682	+0.2%	1.00x (?)
DictionaryRemove	3275	3299	+0.7%	0.99x
DictionaryRemoveOfObjects	23445	23483	+0.2%	1.00x (?)
DictionarySwap	370	370	+0.0%	1.00x
DictionarySwapOfObjects	7013	6973	-0.6%	1.01x (?)
DropFirstAnyCollection	126	126	+0.0%	1.00x
DropFirstAnyCollectionLazy	45123	45042	-0.2%	1.00x
DropFirstAnySeqCRangeIter	27308	27550	+0.9%	0.99x
DropFirstAnySeqCRangeIterLazy	27138	27796	+2.4%	0.98x
DropFirstAnySeqCntRange	116	116	+0.0%	1.00x
DropFirstAnySeqCntRangeLazy	116	115	-0.9%	1.01x
DropFirstArray	29	29	+0.0%	1.00x
DropFirstArrayLazy	29	29	+0.0%	1.00x
DropFirstCountableRange	23	23	+0.0%	1.00x
DropFirstCountableRangeLazy	23	23	+0.0%	1.00x
DropFirstSequence	3067	3067	+0.0%	1.00x
DropFirstSequenceLazy	3031	3031	+0.0%	1.00x
DropLastAnyCollection	52	52	+0.0%	1.00x
DropLastAnyCollectionLazy	15004	15006	+0.0%	1.00x (?)
DropLastAnySeqCntRange	40	40	+0.0%	1.00x
DropLastAnySeqCntRangeLazy	40	40	+0.0%	1.00x
DropLastArray	10	10	+0.0%	1.00x
DropLastArrayLazy	11	11	+0.0%	1.00x
DropLastCountableRange	8	8	+0.0%	1.00x
DropLastCountableRangeLazy	8	8	+0.0%	1.00x
DropWhileAnyCollection	134	134	+0.0%	1.00x
DropWhileAnyCollectionLazy	96	96	+0.0%	1.00x
DropWhileAnySeqCRangeIter	22412	21955	-2.0%	1.02x
DropWhileAnySeqCRangeIterLazy	96	96	+0.0%	1.00x
DropWhileAnySeqCntRange	128	128	+0.0%	1.00x
DropWhileAnySeqCntRangeLazy	96	96	+0.0%	1.00x
DropWhileAnySequence	7581	7569	-0.2%	1.00x (?)
DropWhileAnySequenceLazy	2109	2108	-0.0%	1.00x
DropWhileCountableRange	36	36	+0.0%	1.00x
DropWhileCountableRangeLazy	79	79	+0.0%	1.00x
DropWhileSequence	3126	3124	-0.1%	1.00x
ErrorHandling	2916	2935	+0.7%	0.99x (?)
GlobalClass	0	0	+0.0%	1.00x
Hanoi	3340	3294	-1.4%	1.01x (?)
HashQuadratic	6042417	6353426	+5.1%	0.95x
HashTest	1753	1779	+1.5%	0.99x
Histogram	250	244	-2.4%	1.02x
Integrate	262	262	+0.0%	1.00x
IterateData	764	760	-0.5%	1.01x
Join	455	459	+0.9%	0.99x (?)
LazilyFilteredArrays	64924	64824	-0.2%	1.00x (?)
LazilyFilteredRange	3938	3931	-0.2%	1.00x (?)
LinkedList	7051	7044	-0.1%	1.00x
MapReduce	331	332	+0.3%	1.00x
MapReduceAnyCollection	302	303	+0.3%	1.00x (?)
MapReduceAnyCollectionShort	1994	2005	+0.6%	0.99x
MapReduceClass	3064	3047	-0.6%	1.01x
MapReduceClassShort	4564	4628	+1.4%	0.99x
MapReduceLazyCollection	15	15	+0.0%	1.00x
MapReduceLazyCollectionShort	45	44	-2.2%	1.02x
MapReduceLazySequence	90	90	+0.0%	1.00x
MapReduceSequence	463	464	+0.2%	1.00x (?)
MapReduceShort	1947	1935	-0.6%	1.01x (?)
MapReduceShortString	18	18	+0.0%	1.00x
MapReduceString	70	72	+2.9%	0.97x
Memset	234	234	+0.0%	1.00x
MonteCarloE	10432	10151	-2.7%	1.03x
MonteCarloPi	44009	43957	-0.1%	1.00x
NSDictionaryCastToSwift	5310	5258	-1.0%	1.01x (?)
NSError	290	291	+0.3%	1.00x (?)
NSStringConversion	767	737	-3.9%	1.04x
ObjectiveCBridgeFromNSArrayAnyObject	24103	23460	-2.7%	1.03x
ObjectiveCBridgeFromNSArrayAnyObjectForced	4452	4493	+0.9%	0.99x (?)
ObjectiveCBridgeFromNSArrayAnyObjectToString	43293	44267	+2.2%	0.98x (?)
ObjectiveCBridgeFromNSArrayAnyObjectToStringForced	37206	38017	+2.2%	0.98x (?)
ObjectiveCBridgeFromNSDictionaryAnyObject	123323	121994	-1.1%	1.01x (?)
ObjectiveCBridgeFromNSDictionaryAnyObjectForced	4883	4941	+1.2%	0.99x
ObjectiveCBridgeFromNSDictionaryAnyObjectToString	102096	105449	+3.3%	0.97x (?)
ObjectiveCBridgeFromNSDictionaryAnyObjectToStringForced	98944	98261	-0.7%	1.01x (?)
ObjectiveCBridgeFromNSSetAnyObject	64535	65036	+0.8%	0.99x (?)
ObjectiveCBridgeFromNSSetAnyObjectForced	4189	4256	+1.6%	0.98x (?)
ObjectiveCBridgeFromNSSetAnyObjectToString	80675	81556	+1.1%	0.99x (?)
ObjectiveCBridgeFromNSSetAnyObjectToStringForced	71369	72389	+1.4%	0.99x (?)
ObjectiveCBridgeFromNSString	1407	1443	+2.6%	0.98x
ObjectiveCBridgeFromNSStringForced	2321	2392	+3.1%	0.97x
ObjectiveCBridgeStubDataAppend	3783	3782	-0.0%	1.00x (?)
ObjectiveCBridgeStubDateAccess	181	182	+0.6%	0.99x
ObjectiveCBridgeStubDateMutation	272	272	+0.0%	1.00x
ObjectiveCBridgeStubFromArrayOfNSString	28383	29307	+3.3%	0.97x
ObjectiveCBridgeStubFromNSDate	3671	3802	+3.6%	0.97x (?)
ObjectiveCBridgeStubFromNSDateRef	3678	3643	-1.0%	1.01x
ObjectiveCBridgeStubFromNSString	940	937	-0.3%	1.00x
ObjectiveCBridgeStubFromNSStringRef	175	177	+1.1%	0.99x
ObjectiveCBridgeStubNSDataAppend	2330	2287	-1.8%	1.02x (?)
ObjectiveCBridgeStubNSDateMutationRef	12666	12217	-3.5%	1.04x (?)
ObjectiveCBridgeStubNSDateRefAccess	347	347	+0.0%	1.00x
ObjectiveCBridgeStubToArrayOfNSString	28610	28749	+0.5%	1.00x (?)
ObjectiveCBridgeStubToNSDate	14934	15064	+0.9%	0.99x (?)
ObjectiveCBridgeStubToNSDateRef	3381	3427	+1.4%	0.99x (?)
ObjectiveCBridgeStubToNSString	1516	1517	+0.1%	1.00x
ObjectiveCBridgeStubToNSStringRef	109	108	-0.9%	1.01x (?)
ObjectiveCBridgeStubURLAppendPath	236051	233967	-0.9%	1.01x (?)
ObjectiveCBridgeStubURLAppendPathRef	231978	232497	+0.2%	1.00x (?)
ObjectiveCBridgeToNSArray	29049	29129	+0.3%	1.00x (?)
ObjectiveCBridgeToNSDictionary	61414	61228	-0.3%	1.00x (?)
ObjectiveCBridgeToNSSet	39062	38949	-0.3%	1.00x (?)
ObjectiveCBridgeToNSString	1267	1269	+0.2%	1.00x
ObserverClosure	2305	2299	-0.3%	1.00x (?)
ObserverForwarderStruct	1155	1142	-1.1%	1.01x
ObserverPartiallyAppliedMethod	3821	3822	+0.0%	1.00x (?)
ObserverUnappliedMethod	2660	2653	-0.3%	1.00x (?)
Phonebook	6873	6955	+1.2%	0.99x
PolymorphicCalls	22	21	-4.5%	1.05x
PopFrontArray	1080	1074	-0.6%	1.01x (?)
PopFrontArrayGeneric	1069	1075	+0.6%	0.99x
PopFrontUnsafePointer	8878	8864	-0.2%	1.00x
PrefixAnyCollection	126	126	+0.0%	1.00x
PrefixAnyCollectionLazy	45037	44988	-0.1%	1.00x
PrefixAnySeqCRangeIter	22403	21611	-3.5%	1.04x
PrefixAnySeqCRangeIterLazy	22401	21606	-3.5%	1.04x
PrefixAnySeqCntRange	117	115	-1.7%	1.02x
PrefixAnySeqCntRangeLazy	116	115	-0.9%	1.01x
PrefixArray	30	29	-3.3%	1.03x
PrefixCountableRange	23	23	+0.0%	1.00x
PrefixCountableRangeLazy	23	23	+0.0%	1.00x
PrefixSequence	2638	2563	-2.8%	1.03x
PrefixSequenceLazy	2601	2600	-0.0%	1.00x
PrefixWhileAnyCollection	160	160	+0.0%	1.00x
PrefixWhileAnyCollectionLazy	77	77	+0.0%	1.00x
PrefixWhileAnySeqCRangeIterLazy	77	77	+0.0%	1.00x
PrefixWhileAnySeqCntRange	154	155	+0.6%	0.99x
PrefixWhileAnySeqCntRangeLazy	77	77	+0.0%	1.00x
PrefixWhileAnySequenceLazy	1587	1587	+0.0%	1.00x
PrefixWhileCountableRange	35	36	+2.9%	0.97x
PrefixWhileCountableRangeLazy	23	23	+0.0%	1.00x
PrefixWhileSequence	386	401	+3.9%	0.96x
PrefixWhileSequenceLazy	39	39	+0.0%	1.00x
Prims	790	799	+1.1%	0.99x (?)
RC4	169	169	+0.0%	1.00x
RGBHistogram	2289	2294	+0.2%	1.00x (?)
RGBHistogramOfObjects	24143	24115	-0.1%	1.00x (?)
RangeAssignment	308	313	+1.6%	0.98x (?)
RecursiveOwnedParameter	2315	2320	+0.2%	1.00x (?)
ReversedBidirectional	29156	29077	-0.3%	1.00x
ReversedDictionary	113	113	+0.0%	1.00x
SetExclusiveOr	3002	2941	-2.0%	1.02x (?)
SetExclusiveOr_OfObjects	9634	9574	-0.6%	1.01x (?)
SetIntersect	271	270	-0.4%	1.00x (?)
SetIntersect_OfObjects	1733	1730	-0.2%	1.00x (?)
SetIsSubsetOf	286	286	+0.0%	1.00x
SetIsSubsetOf_OfObjects	359	359	+0.0%	1.00x
SetUnion	2782	2698	-3.0%	1.03x
SetUnion_OfObjects	8201	8176	-0.3%	1.00x (?)
SevenBoom	1469	1479	+0.7%	0.99x
Sim2DArray	276	276	+0.0%	1.00x
SortLargeExistentials	8107	8073	-0.4%	1.00x
SortLettersInPlace	1149	1146	-0.3%	1.00x (?)
SortSortedStrings	838	834	-0.5%	1.00x
SortStrings	1639	1639	+0.0%	1.00x
SortStringsUnicode	7765	7705	-0.8%	1.01x
StackPromo	22025	22065	+0.2%	1.00x
StaticArray	18	18	+0.0%	1.00x
StrComplexWalk	985	998	+1.3%	0.99x
StrToInt	4752	4630	-2.6%	1.03x
StringAdder	0	0	+0.0%	1.00x
StringBuilderLong	974	958	-1.6%	1.02x
StringEdits	376361	382761	+1.7%	0.98x
StringEqualPointerComparison	7302	7341	+0.5%	0.99x
StringHasPrefixUnicode	14507	14489	-0.1%	1.00x
StringHasSuffixUnicode	61251	61640	+0.6%	0.99x
StringInterpolation	8363	8471	+1.3%	0.99x (?)
StringMatch	16734	16536	-1.2%	1.01x
StringWalk	6061	6062	+0.0%	1.00x (?)
StringWithCString	335388	335391	+0.0%	1.00x (?)
SuffixAnyCollection	52	52	+0.0%	1.00x
SuffixAnyCollectionLazy	15105	15025	-0.5%	1.01x
SuffixAnySeqCntRange	40	40	+0.0%	1.00x
SuffixAnySeqCntRangeLazy	40	40	+0.0%	1.00x
SuffixArray	10	10	+0.0%	1.00x
SuffixCountableRange	8	8	+0.0%	1.00x
SuffixCountableRangeLazy	8	8	+0.0%	1.00x
SuperChars	290005	288530	-0.5%	1.01x (?)
TwoSum	900	906	+0.7%	0.99x (?)
TypeFlood	0	0	+0.0%	1.00x
Walsh	355	356	+0.3%	1.00x (?)
XorLoop	347	347	+0.0%	1.00x

**Unoptimized (Onone)**

Regression (20)

TEST	OLD	NEW	DELTA	SPEEDUP
Chars	7395	14358	+94.2%	0.52x
ArrayValueProp2	3655	6772	+85.3%	0.54x
StrToInt	7856	10411	+32.5%	0.75x
StringBuilder	2939	3828	+30.2%	0.77x
StringUTF16Builder	3698	4689	+26.8%	0.79x
ObjectAllocation	635	801	+26.1%	0.79x
Dictionary	1949	2319	+19.0%	0.84x
ErrorHandling	3918	4456	+13.7%	0.88x
AngryPhonebook	3110	3481	+11.9%	0.89x
ObjectiveCBridgeStubFromNSDate	3873	4267	+10.2%	0.91x
ObjectiveCBridgeStubFromNSDateRef	3852	4185	+8.6%	0.92x (?)
DictionaryOfObjects	4865	5248	+7.9%	0.93x
ObjectiveCBridgeStubToNSDate	14882	15962	+7.3%	0.93x (?)
RC4	19434	20823	+7.1%	0.93x
ObjectiveCBridgeFromNSDictionaryAnyObjectForced	7241	7746	+7.0%	0.93x
ObjectiveCBridgeStubFromNSStringRef	204	217	+6.4%	0.94x
SuperChars	307041	326478	+6.3%	0.94x
ClassArrayGetter	931	988	+6.1%	0.94x
ArrayOfGenericPOD	3075	3242	+5.4%	0.95x
StringHasPrefix	1697	1788	+5.4%	0.95x

Improvement (51)

TEST	OLD	NEW	DELTA	SPEEDUP
DropFirstArray	6195	1585	-74.4%	3.91x
PrefixArray	6193	1585	-74.4%	3.91x
DropLastArray	2087	536	-74.3%	3.89x
SuffixArray	2088	537	-74.3%	3.89x
UTF8Decode	37011	10073	-72.8%	3.67x
DropWhileArrayLazy	16910	4976	-70.6%	3.40x
PrefixWhileArrayLazy	14687	5651	-61.5%	2.60x
ReversedDictionary	25843	10009	-61.3%	2.58x
ArrayAppendLazyMap	210126	88650	-57.8%	2.37x
DropWhileArray	9805	5062	-48.4%	1.94x
DictionaryLiteral	13255	6974	-47.4%	1.90x
Join	1263	667	-47.2%	1.89x
MapReduceLazyCollection	32703	17703	-45.9%	1.85x
LazilyFilteredArrays	1706362	963130	-43.6%	1.77x
MapReduceString	2595	1474	-43.2%	1.76x
MapReduceAnyCollection	37765	22973	-39.2%	1.64x
MapReduce	37744	23062	-38.9%	1.64x
MapReduceLazyCollectionShort	44200	28252	-36.1%	1.56x
MapReduceSequence	41017	26306	-35.9%	1.56x
MapReduceClass	43125	28226	-34.5%	1.53x
MapReduceShortString	278	189	-32.0%	1.47x
MapReduceShort	49942	34029	-31.9%	1.47x
MapReduceAnyCollectionShort	50427	34363	-31.9%	1.47x
PrefixWhileSequence	28619	19616	-31.5%	1.46x
PrefixWhileAnySequence	29647	20622	-30.4%	1.44x
MapReduceClassShort	54355	38243	-29.6%	1.42x
Histogram	8765	6279	-28.4%	1.40x
PrefixWhileArray	16836	12168	-27.7%	1.38x
ObserverForwarderStruct	4718	3415	-27.6%	1.38x
PrefixWhileAnySeqCRangeIter	40506	32078	-20.8%	1.26x
ObserverClosure	6701	5313	-20.7%	1.26x
MonteCarloE	134481	107804	-19.8%	1.25x
ObserverPartiallyAppliedMethod	8106	6644	-18.0%	1.22x
ObserverUnappliedMethod	8523	7315	-14.2%	1.17x
RGBHistogram	33893	29156	-14.0%	1.16x
SuffixAnySequence	26892	23829	-11.4%	1.13x
SuffixSequenceLazy	26456	23443	-11.4%	1.13x
SuffixAnySequenceLazy	26882	23867	-11.2%	1.13x
SuffixSequence	26425	23495	-11.1%	1.12x
DropLastAnySequence	29313	26213	-10.6%	1.12x
StringEdits	679110	609269	-10.3%	1.11x
DropLastSequenceLazy	28769	25861	-10.1%	1.11x
DropLastAnySequenceLazy	29169	26246	-10.0%	1.11x
DropLastSequence	28732	25878	-9.9%	1.11x
SuffixAnySeqCRangeIterLazy	41591	38232	-8.1%	1.09x
SuffixAnySeqCRangeIter	41180	38316	-7.0%	1.07x
DropLastAnySeqCRangeIterLazy	43640	40746	-6.6%	1.07x
DropLastAnySeqCRangeIter	43588	40827	-6.3%	1.07x
NopDeinit	53329	50304	-5.7%	1.06x
RGBHistogramOfObjects	98881	94097	-4.8%	1.05x
ObjectiveCBridgeStubDataAppend	3931	3741	-4.8%	1.05x (?)

No Changes (198)

TEST	OLD	NEW	DELTA	SPEEDUP
AnyHashableWithAClass	84381	84884	+0.6%	0.99x
Array2D	608638	608273	-0.1%	1.00x (?)
ArrayAppend	3817	3802	-0.4%	1.00x
ArrayAppendArrayOfInt	658	662	+0.6%	0.99x
ArrayAppendAscii	84023	84385	+0.4%	1.00x
ArrayAppendFromGeneric	664	663	-0.2%	1.00x (?)
ArrayAppendGenericStructs	1301	1301	+0.0%	1.00x
ArrayAppendLatin1	105081	106909	+1.7%	0.98x
ArrayAppendOptionals	1298	1355	+4.4%	0.96x (?)
ArrayAppendRepeatCol	212375	210409	-0.9%	1.01x
ArrayAppendReserved	3423	3539	+3.4%	0.97x
ArrayAppendSequence	75387	74516	-1.2%	1.01x
ArrayAppendStrings	13662	13625	-0.3%	1.00x (?)
ArrayAppendToFromGeneric	662	662	+0.0%	1.00x
ArrayAppendToGeneric	662	663	+0.2%	1.00x
ArrayAppendUTF16	103006	105495	+2.4%	0.98x
ArrayInClass	4737	4734	-0.1%	1.00x (?)
ArrayLiteral	1483	1483	+0.0%	1.00x
ArrayOfGenericRef	9655	9748	+1.0%	0.99x
ArrayOfPOD	1832	1832	+0.0%	1.00x
ArrayOfRef	8783	8915	+1.5%	0.99x
ArrayPlusEqualArrayOfInt	660	660	+0.0%	1.00x
ArrayPlusEqualFiveElementCollection	285891	285072	-0.3%	1.00x (?)
ArrayPlusEqualSingleElementCollection	283985	282041	-0.7%	1.01x (?)
ArrayPlusEqualThreeElements	11934	11729	-1.7%	1.02x (?)
ArraySubscript	4178	4163	-0.4%	1.00x (?)
ArrayValueProp	3025	3026	+0.0%	1.00x (?)
ArrayValueProp3	3437	3442	+0.1%	1.00x (?)
ArrayValueProp4	3332	3333	+0.0%	1.00x (?)
BitCount	890	871	-2.1%	1.02x
ByteSwap	270	268	-0.7%	1.01x (?)
CStringLongAscii	12928	13034	+0.8%	0.99x
CStringLongNonAscii	4175	4251	+1.8%	0.98x
CStringShortAscii	8881	9233	+4.0%	0.96x (?)
Calculator	988	950	-3.8%	1.04x
CaptureProp	108813	107151	-1.5%	1.02x
CharacterLiteralsLarge	10561	10724	+1.5%	0.98x
CharacterLiteralsSmall	970	971	+0.1%	1.00x
DeadArray	118672	118991	+0.3%	1.00x (?)
Dictionary2	3812	3800	-0.3%	1.00x (?)
Dictionary2OfObjects	6130	6144	+0.2%	1.00x (?)
Dictionary3	1486	1493	+0.5%	1.00x (?)
Dictionary3OfObjects	2377	2371	-0.3%	1.00x (?)
DictionaryBridge	2951	2972	+0.7%	0.99x (?)
DictionaryRemove	21440	21982	+2.5%	0.98x
DictionaryRemoveOfObjects	55491	55105	-0.7%	1.01x
DictionarySwap	5442	5499	+1.0%	0.99x
DictionarySwapOfObjects	19830	20206	+1.9%	0.98x
DropFirstAnyCollection	19085	19040	-0.2%	1.00x
DropFirstAnyCollectionLazy	136724	137689	+0.7%	0.99x (?)
DropFirstAnySeqCRangeIter	29603	30250	+2.2%	0.98x
DropFirstAnySeqCRangeIterLazy	29497	30034	+1.8%	0.98x (?)
DropFirstAnySeqCntRange	19170	18980	-1.0%	1.01x
DropFirstAnySeqCntRangeLazy	19230	18971	-1.3%	1.01x
DropFirstAnySequence	14234	14059	-1.2%	1.01x
DropFirstAnySequenceLazy	14084	14060	-0.2%	1.00x (?)
DropFirstArrayLazy	45530	46540	+2.2%	0.98x
DropFirstCountableRange	339	338	-0.3%	1.00x
DropFirstCountableRangeLazy	37581	39432	+4.9%	0.95x
DropFirstSequence	13071	12919	-1.2%	1.01x
DropFirstSequenceLazy	12897	13316	+3.2%	0.97x
DropLastAnyCollection	6379	6363	-0.3%	1.00x
DropLastAnyCollectionLazy	46127	45952	-0.4%	1.00x (?)
DropLastAnySeqCntRange	6359	6340	-0.3%	1.00x (?)
DropLastAnySeqCntRangeLazy	6364	6369	+0.1%	1.00x (?)
DropLastArrayLazy	15192	15633	+2.9%	0.97x
DropLastCountableRange	119	119	+0.0%	1.00x
DropLastCountableRangeLazy	12539	13119	+4.6%	0.96x
DropWhileAnyCollection	25162	24815	-1.4%	1.01x
DropWhileAnyCollectionLazy	27146	27659	+1.9%	0.98x (?)
DropWhileAnySeqCRangeIter	31427	31998	+1.8%	0.98x
DropWhileAnySeqCRangeIterLazy	26930	27358	+1.6%	0.98x
DropWhileAnySeqCntRange	25160	24891	-1.1%	1.01x
DropWhileAnySeqCntRangeLazy	26949	27477	+2.0%	0.98x
DropWhileAnySequence	15961	16104	+0.9%	0.99x
DropWhileAnySequenceLazy	12825	12410	-3.2%	1.03x
DropWhileCountableRange	6084	6217	+2.2%	0.98x
DropWhileCountableRangeLazy	25977	26491	+2.0%	0.98x (?)
DropWhileSequence	14891	15041	+1.0%	0.99x
DropWhileSequenceLazy	11203	11212	+0.1%	1.00x (?)
GlobalClass	0	0	+0.0%	1.00x
Hanoi	17588	17600	+0.1%	1.00x (?)
HashQuadratic	48327796	50232696	+3.9%	0.96x
HashTest	18477	18675	+1.1%	0.99x (?)
Integrate	399	399	+0.0%	1.00x
IterateData	12535	12865	+2.6%	0.97x
LazilyFilteredRange	669676	667204	-0.4%	1.00x (?)
LinkedList	32915	32957	+0.1%	1.00x (?)
MapReduceLazySequence	26088	25259	-3.2%	1.03x
Memset	43980	43958	-0.1%	1.00x (?)
MonteCarloPi	53190	53507	+0.6%	0.99x (?)
NSDictionaryCastToSwift	6450	6541	+1.4%	0.99x (?)
NSError	730	739	+1.2%	0.99x (?)
NSStringConversion	1342	1337	-0.4%	1.00x
ObjectiveCBridgeFromNSArrayAnyObject	26252	25749	-1.9%	1.02x (?)
ObjectiveCBridgeFromNSArrayAnyObjectForced	7955	7831	-1.6%	1.02x (?)
ObjectiveCBridgeFromNSArrayAnyObjectToString	45457	46642	+2.6%	0.97x (?)
ObjectiveCBridgeFromNSArrayAnyObjectToStringForced	38814	39346	+1.4%	0.99x (?)
ObjectiveCBridgeFromNSDictionaryAnyObject	125679	126464	+0.6%	0.99x (?)
ObjectiveCBridgeFromNSDictionaryAnyObjectToString	108689	107298	-1.3%	1.01x (?)
ObjectiveCBridgeFromNSDictionaryAnyObjectToStringForced	107168	104439	-2.5%	1.03x (?)
ObjectiveCBridgeFromNSSetAnyObject	68596	68293	-0.4%	1.00x (?)
ObjectiveCBridgeFromNSSetAnyObjectForced	7225	7295	+1.0%	0.99x (?)
ObjectiveCBridgeFromNSSetAnyObjectToString	87277	88106	+0.9%	0.99x (?)
ObjectiveCBridgeFromNSSetAnyObjectToStringForced	74348	77568	+4.3%	0.96x (?)
ObjectiveCBridgeFromNSString	4073	4032	-1.0%	1.01x (?)
ObjectiveCBridgeFromNSStringForced	2706	2745	+1.4%	0.99x
ObjectiveCBridgeStubDateAccess	1004	1031	+2.7%	0.97x
ObjectiveCBridgeStubDateMutation	515	515	+0.0%	1.00x
ObjectiveCBridgeStubFromArrayOfNSString	28498	28729	+0.8%	0.99x (?)
ObjectiveCBridgeStubFromNSString	980	986	+0.6%	0.99x
ObjectiveCBridgeStubNSDataAppend	2654	2746	+3.5%	0.97x
ObjectiveCBridgeStubNSDateMutationRef	15659	15578	-0.5%	1.01x (?)
ObjectiveCBridgeStubNSDateRefAccess	1209	1210	+0.1%	1.00x (?)
ObjectiveCBridgeStubToArrayOfNSString	29441	29661	+0.7%	0.99x (?)
ObjectiveCBridgeStubToNSDateRef	3405	3354	-1.5%	1.02x (?)
ObjectiveCBridgeStubToNSString	1560	1560	+0.0%	1.00x
ObjectiveCBridgeStubToNSStringRef	149	150	+0.7%	0.99x (?)
ObjectiveCBridgeStubURLAppendPath	239523	234556	-2.1%	1.02x (?)
ObjectiveCBridgeStubURLAppendPathRef	235596	237145	+0.7%	0.99x (?)
ObjectiveCBridgeToNSArray	29221	29099	-0.4%	1.00x (?)
ObjectiveCBridgeToNSDictionary	63498	61971	-2.4%	1.02x (?)
ObjectiveCBridgeToNSSet	39371	39580	+0.5%	0.99x (?)
ObjectiveCBridgeToNSString	1324	1324	+0.0%	1.00x
OpenClose	409	429	+4.9%	0.95x
Phonebook	22250	21868	-1.7%	1.02x
PolymorphicCalls	2909	2930	+0.7%	0.99x
PopFrontArray	9909	9786	-1.2%	1.01x
PopFrontArrayGeneric	8825	8837	+0.1%	1.00x (?)
PopFrontUnsafePointer	97646	97395	-0.3%	1.00x (?)
PrefixAnyCollection	19068	19048	-0.1%	1.00x (?)
PrefixAnyCollectionLazy	139924	137460	-1.8%	1.02x (?)
PrefixAnySeqCRangeIter	23880	24218	+1.4%	0.99x
PrefixAnySeqCRangeIterLazy	23704	24072	+1.6%	0.98x
PrefixAnySeqCntRange	19168	18983	-1.0%	1.01x
PrefixAnySeqCntRangeLazy	19160	18959	-1.0%	1.01x
PrefixAnySequence	11958	11799	-1.3%	1.01x
PrefixAnySequenceLazy	11783	11780	-0.0%	1.00x (?)
PrefixArrayLazy	45209	46599	+3.1%	0.97x (?)
PrefixCountableRange	339	340	+0.3%	1.00x (?)
PrefixCountableRangeLazy	37512	39285	+4.7%	0.95x
PrefixSequence	11085	10783	-2.7%	1.03x
PrefixSequenceLazy	10756	10736	-0.2%	1.00x (?)
PrefixWhileAnyCollection	36832	36255	-1.6%	1.02x (?)
PrefixWhileAnyCollectionLazy	22446	22995	+2.4%	0.98x (?)
PrefixWhileAnySeqCRangeIterLazy	22240	22630	+1.8%	0.98x (?)
PrefixWhileAnySeqCntRange	36510	36325	-0.5%	1.01x (?)
PrefixWhileAnySeqCntRangeLazy	22305	22656	+1.6%	0.98x
PrefixWhileAnySequenceLazy	11330	11311	-0.2%	1.00x
PrefixWhileCountableRange	17526	17871	+2.0%	0.98x (?)
PrefixWhileCountableRangeLazy	21729	21856	+0.6%	0.99x
PrefixWhileSequenceLazy	10377	10466	+0.9%	0.99x (?)
Prims	9016	8722	-3.3%	1.03x
ProtocolDispatch	6930	6949	+0.3%	1.00x
ProtocolDispatch2	490	490	+0.0%	1.00x
RangeAssignment	5776	5792	+0.3%	1.00x (?)
RecursiveOwnedParameter	9636	9642	+0.1%	1.00x (?)
ReversedArray	591	591	+0.0%	1.00x
ReversedBidirectional	75588	75254	-0.4%	1.00x (?)
SetExclusiveOr	21373	21477	+0.5%	1.00x (?)
SetExclusiveOr_OfObjects	41744	41604	-0.3%	1.00x (?)
SetIntersect	10625	10799	+1.6%	0.98x (?)
SetIntersect_OfObjects	11312	11330	+0.2%	1.00x
SetIsSubsetOf	1655	1651	-0.2%	1.00x (?)
SetIsSubsetOf_OfObjects	1574	1572	-0.1%	1.00x (?)
SetUnion	11954	12067	+0.9%	0.99x
SetUnion_OfObjects	29752	29761	+0.0%	1.00x (?)
SevenBoom	1598	1609	+0.7%	0.99x (?)
Sim2DArray	30032	30030	-0.0%	1.00x (?)
SortLargeExistentials	17717	17638	-0.4%	1.00x
SortLettersInPlace	2854	2890	+1.3%	0.99x (?)
SortSortedStrings	1410	1402	-0.6%	1.01x
SortStrings	2517	2450	-2.7%	1.03x
SortStringsUnicode	8813	8792	-0.2%	1.00x (?)
StackPromo	104154	104012	-0.1%	1.00x (?)
StaticArray	4654	4657	+0.1%	1.00x (?)
StrComplexWalk	5980	5983	+0.1%	1.00x (?)
StringAdder	45	45	+0.0%	1.00x
StringBuilderLong	1149	1130	-1.7%	1.02x
StringEqualPointerComparison	9780	9684	-1.0%	1.01x
StringHasPrefixUnicode	16443	16073	-2.3%	1.02x
StringHasSuffix	1850	1853	+0.2%	1.00x
StringHasSuffixUnicode	63489	63462	-0.0%	1.00x
StringInterpolation	12109	12006	-0.9%	1.01x
StringMatch	39144	39133	-0.0%	1.00x (?)
StringWalk	21317	20879	-2.1%	1.02x
StringWithCString	334400	334240	-0.0%	1.00x
SuffixAnyCollection	6377	6350	-0.4%	1.00x
SuffixAnyCollectionLazy	45686	45572	-0.2%	1.00x (?)
SuffixAnySeqCntRange	6398	6338	-0.9%	1.01x
SuffixAnySeqCntRangeLazy	6367	6362	-0.1%	1.00x (?)
SuffixArrayLazy	15091	15594	+3.3%	0.97x
SuffixCountableRange	119	119	+0.0%	1.00x
SuffixCountableRangeLazy	12511	13111	+4.8%	0.95x (?)
TwoSum	4299	4351	+1.2%	0.99x
TypeFlood	167	165	-1.2%	1.01x (?)
Walsh	12018	12023	+0.0%	1.00x (?)
XorLoop	23706	23706	+0.0%	1.00x

**Hardware Overview** Model Name: Mac mini Model Identifier: Macmini7,1 Processor Name: Intel Core i5 Processor Speed: 2.8 GHz Number of Processors: 1 Total Number of Cores: 2 L2 Cache (per Core): 256 KB L3 Cache: 3 MB Memory: 16 GB

airspeedswift · 2017-05-01T03:33:17Z

@swift-ci please benchmark

slavapestov · 2017-05-01T07:39:46Z

@airspeedswift Can you file a bug with the crash you were seeing?

swift-ci · 2017-05-01T08:04:50Z

Build comment file:

Optimized (O)

Regression (10)

TEST	OLD	NEW	DELTA	SPEEDUP
ArrayValueProp2	6	1148	+19030.2%	0.01x
ObjectAllocation	179	236	+31.8%	0.76x
StringBuilder	1385	1738	+25.5%	0.80x
StringUTF16Builder	2177	2541	+16.7%	0.86x
PrefixArrayLazy	29	33	+13.8%	0.88x
DropLastSequence	516	578	+12.0%	0.89x
DropLastSequenceLazy	516	577	+11.8%	0.89x
OpenClose	48	51	+6.2%	0.94x
StrToInt	4418	4685	+6.0%	0.94x
CaptureProp	4581	4852	+5.9%	0.94x

Improvement (22)

TEST	OLD	NEW	DELTA	SPEEDUP
UTF8Decode	278	0	-100.0%	278001.00x
PrefixWhileAnySeqCRangeIter	12505	3656	-70.8%	3.42x
SuffixSequenceLazy	4496	1458	-67.6%	3.08x
SuffixSequence	4496	1458	-67.6%	3.08x
DropLastAnySeqCRangeIter	4613	1615	-65.0%	2.86x
DropLastAnySeqCRangeIterLazy	4606	1613	-65.0%	2.86x
PrefixWhileAnySequence	14052	5157	-63.3%	2.72x
SuffixAnySeqCRangeIter	4932	1980	-59.9%	2.49x
SuffixAnySeqCRangeIterLazy	4927	1979	-59.8%	2.49x
DropLastAnySequence	7177	3819	-46.8%	1.88x
DropLastAnySequenceLazy	6532	3578	-45.2%	1.83x
SuffixAnySequenceLazy	6561	3643	-44.5%	1.80x
SuffixAnySequence	6745	3792	-43.8%	1.78x
DropWhileArrayLazy	80	70	-12.5%	1.14x
PrefixWhileArrayLazy	58	51	-12.1%	1.14x
DropWhileSequenceLazy	76	67	-11.8%	1.13x
ProtocolDispatch	2727	2424	-11.1%	1.12x
StringHasSuffix	894	828	-7.4%	1.08x
PrefixWhileArray	71	66	-7.0%	1.08x
NopDeinit	28957	27434	-5.3%	1.06x
PrefixWhileSequence	403	382	-5.2%	1.05x
HashQuadratic	6343741	6018620	-5.1%	1.05x

No Changes (237)

TEST	OLD	NEW	DELTA	SPEEDUP
AngryPhonebook	2923	2903	-0.7%	1.01x (?)
AnyHashableWithAClass	67050	66941	-0.2%	1.00x (?)
Array2D	2026	2045	+0.9%	0.99x (?)
ArrayAppend	776	775	-0.1%	1.00x (?)
ArrayAppendArrayOfInt	597	596	-0.2%	1.00x (?)
ArrayAppendAscii	19811	19984	+0.9%	0.99x (?)
ArrayAppendFromGeneric	596	596	+0.0%	1.00x
ArrayAppendGenericStructs	1218	1222	+0.3%	1.00x (?)
ArrayAppendLatin1	46072	45141	-2.0%	1.02x (?)
ArrayAppendLazyMap	1003	1001	-0.2%	1.00x (?)
ArrayAppendOptionals	1220	1227	+0.6%	0.99x (?)
ArrayAppendRepeatCol	837	838	+0.1%	1.00x (?)
ArrayAppendReserved	533	533	+0.0%	1.00x
ArrayAppendSequence	947	949	+0.2%	1.00x (?)
ArrayAppendStrings	13589	13607	+0.1%	1.00x (?)
ArrayAppendToFromGeneric	596	596	+0.0%	1.00x
ArrayAppendToGeneric	596	596	+0.0%	1.00x
ArrayAppendUTF16	43748	43409	-0.8%	1.01x
ArrayInClass	62	62	+0.0%	1.00x
ArrayLiteral	1228	1230	+0.2%	1.00x (?)
ArrayOfGenericPOD	219	219	+0.0%	1.00x
ArrayOfGenericRef	4012	4009	-0.1%	1.00x (?)
ArrayOfPOD	166	166	+0.0%	1.00x
ArrayOfRef	3887	3903	+0.4%	1.00x (?)
ArrayPlusEqualArrayOfInt	596	597	+0.2%	1.00x
ArrayPlusEqualFiveElementCollection	4657	4679	+0.5%	1.00x (?)
ArrayPlusEqualSingleElementCollection	774	774	+0.0%	1.00x
ArrayPlusEqualThreeElements	1591	1605	+0.9%	0.99x (?)
ArraySubscript	1498	1501	+0.2%	1.00x (?)
ArrayValueProp	6	6	+0.0%	1.00x
ArrayValueProp3	6	6	+0.0%	1.00x
ArrayValueProp4	6	6	+0.0%	1.00x
BitCount	0	0	+0.0%	1.00x
ByteSwap	0	0	+0.0%	1.00x
CStringLongAscii	13616	13492	-0.9%	1.01x (?)
CStringLongNonAscii	4189	4135	-1.3%	1.01x
CStringShortAscii	6114	6051	-1.0%	1.01x (?)
Calculator	44	46	+4.5%	0.96x
CharacterLiteralsLarge	10792	10613	-1.7%	1.02x (?)
CharacterLiteralsSmall	778	778	+0.0%	1.00x
Chars	1389	1382	-0.5%	1.01x
ClassArrayGetter	13	13	+0.0%	1.00x
DeadArray	182	181	-0.5%	1.01x (?)
Dictionary	837	838	+0.1%	1.00x (?)
Dictionary2	2095	2085	-0.5%	1.00x (?)
Dictionary2OfObjects	3650	3637	-0.4%	1.00x (?)
Dictionary3	602	602	+0.0%	1.00x
Dictionary3OfObjects	1086	1084	-0.2%	1.00x (?)
DictionaryBridge	2791	2792	+0.0%	1.00x (?)
DictionaryLiteral	1483	1464	-1.3%	1.01x (?)
DictionaryOfObjects	2674	2672	-0.1%	1.00x (?)
DictionaryRemove	3298	3290	-0.2%	1.00x (?)
DictionaryRemoveOfObjects	23597	23333	-1.1%	1.01x (?)
DictionarySwap	370	370	+0.0%	1.00x
DictionarySwapOfObjects	6989	6931	-0.8%	1.01x (?)
DropFirstAnyCollection	127	126	-0.8%	1.01x (?)
DropFirstAnyCollectionLazy	44890	45028	+0.3%	1.00x (?)
DropFirstAnySeqCRangeIter	27573	27657	+0.3%	1.00x (?)
DropFirstAnySeqCRangeIterLazy	27545	27701	+0.6%	0.99x (?)
DropFirstAnySeqCntRange	115	115	+0.0%	1.00x
DropFirstAnySeqCntRangeLazy	115	115	+0.0%	1.00x
DropFirstAnySequence	6803	6770	-0.5%	1.00x
DropFirstAnySequenceLazy	6820	6780	-0.6%	1.01x (?)
DropFirstArray	29	29	+0.0%	1.00x
DropFirstArrayLazy	29	29	+0.0%	1.00x
DropFirstCountableRange	23	23	+0.0%	1.00x
DropFirstCountableRangeLazy	23	23	+0.0%	1.00x
DropFirstSequence	3067	3066	-0.0%	1.00x
DropFirstSequenceLazy	3028	3030	+0.1%	1.00x (?)
DropLastAnyCollection	52	52	+0.0%	1.00x
DropLastAnyCollectionLazy	14951	14982	+0.2%	1.00x (?)
DropLastAnySeqCntRange	40	40	+0.0%	1.00x
DropLastAnySeqCntRangeLazy	40	40	+0.0%	1.00x
DropLastArray	10	10	+0.0%	1.00x
DropLastArrayLazy	12	12	+0.0%	1.00x
DropLastCountableRange	8	8	+0.0%	1.00x
DropLastCountableRangeLazy	8	8	+0.0%	1.00x
DropWhileAnyCollection	134	133	-0.7%	1.01x (?)
DropWhileAnyCollectionLazy	96	96	+0.0%	1.00x
DropWhileAnySeqCRangeIter	22246	22247	+0.0%	1.00x (?)
DropWhileAnySeqCRangeIterLazy	96	96	+0.0%	1.00x
DropWhileAnySeqCntRange	128	129	+0.8%	0.99x
DropWhileAnySeqCntRangeLazy	96	96	+0.0%	1.00x
DropWhileAnySequence	7630	7645	+0.2%	1.00x (?)
DropWhileAnySequenceLazy	2108	2108	+0.0%	1.00x
DropWhileArray	42	43	+2.4%	0.98x
DropWhileCountableRange	35	35	+0.0%	1.00x
DropWhileCountableRangeLazy	79	79	+0.0%	1.00x
DropWhileSequence	3121	3127	+0.2%	1.00x (?)
ErrorHandling	2958	2971	+0.4%	1.00x (?)
GlobalClass	0	0	+0.0%	1.00x
Hanoi	3266	3282	+0.5%	1.00x (?)
HashTest	1749	1780	+1.8%	0.98x (?)
Histogram	250	248	-0.8%	1.01x
Integrate	263	262	-0.4%	1.00x (?)
IterateData	764	762	-0.3%	1.00x
Join	444	453	+2.0%	0.98x
LazilyFilteredArrays	64704	64769	+0.1%	1.00x (?)
LazilyFilteredRange	4052	4011	-1.0%	1.01x (?)
LinkedList	7047	7051	+0.1%	1.00x (?)
MapReduce	330	327	-0.9%	1.01x (?)
MapReduceAnyCollection	302	301	-0.3%	1.00x (?)
MapReduceAnyCollectionShort	2009	1988	-1.0%	1.01x
MapReduceClass	3045	3058	+0.4%	1.00x (?)
MapReduceClassShort	4648	4603	-1.0%	1.01x
MapReduceLazyCollection	15	15	+0.0%	1.00x
MapReduceLazyCollectionShort	44	45	+2.3%	0.98x (?)
MapReduceLazySequence	90	90	+0.0%	1.00x
MapReduceSequence	463	462	-0.2%	1.00x (?)
MapReduceShort	1931	1936	+0.3%	1.00x (?)
MapReduceShortString	18	18	+0.0%	1.00x
MapReduceString	72	70	-2.8%	1.03x
Memset	234	234	+0.0%	1.00x
MonteCarloE	10194	10266	+0.7%	0.99x
MonteCarloPi	43992	43957	-0.1%	1.00x (?)
NSDictionaryCastToSwift	5381	5370	-0.2%	1.00x (?)
NSError	288	289	+0.3%	1.00x (?)
NSStringConversion	716	749	+4.6%	0.96x (?)
ObjectiveCBridgeFromNSArrayAnyObject	23209	23063	-0.6%	1.01x (?)
ObjectiveCBridgeFromNSArrayAnyObjectForced	4433	4495	+1.4%	0.99x (?)
ObjectiveCBridgeFromNSArrayAnyObjectToString	43402	43377	-0.1%	1.00x (?)
ObjectiveCBridgeFromNSArrayAnyObjectToStringForced	37460	37565	+0.3%	1.00x (?)
ObjectiveCBridgeFromNSDictionaryAnyObject	121393	122093	+0.6%	0.99x (?)
ObjectiveCBridgeFromNSDictionaryAnyObjectForced	4908	4940	+0.7%	0.99x (?)
ObjectiveCBridgeFromNSDictionaryAnyObjectToString	102130	105007	+2.8%	0.97x (?)
ObjectiveCBridgeFromNSDictionaryAnyObjectToStringForced	98665	98357	-0.3%	1.00x (?)
ObjectiveCBridgeFromNSSetAnyObject	64677	64128	-0.8%	1.01x (?)
ObjectiveCBridgeFromNSSetAnyObjectForced	4159	4082	-1.9%	1.02x (?)
ObjectiveCBridgeFromNSSetAnyObjectToString	81131	80842	-0.4%	1.00x (?)
ObjectiveCBridgeFromNSSetAnyObjectToStringForced	71639	72042	+0.6%	0.99x (?)
ObjectiveCBridgeFromNSString	1415	1412	-0.2%	1.00x (?)
ObjectiveCBridgeFromNSStringForced	2346	2311	-1.5%	1.02x (?)
ObjectiveCBridgeStubDataAppend	3684	3668	-0.4%	1.00x (?)
ObjectiveCBridgeStubDateAccess	181	181	+0.0%	1.00x
ObjectiveCBridgeStubDateMutation	272	272	+0.0%	1.00x
ObjectiveCBridgeStubFromArrayOfNSString	28407	28304	-0.4%	1.00x (?)
ObjectiveCBridgeStubFromNSDate	3642	3744	+2.8%	0.97x (?)
ObjectiveCBridgeStubFromNSDateRef	3551	3583	+0.9%	0.99x
ObjectiveCBridgeStubFromNSString	898	940	+4.7%	0.96x
ObjectiveCBridgeStubFromNSStringRef	174	176	+1.1%	0.99x (?)
ObjectiveCBridgeStubNSDataAppend	2274	2274	+0.0%	1.00x
ObjectiveCBridgeStubNSDateMutationRef	11906	12476	+4.8%	0.95x (?)
ObjectiveCBridgeStubNSDateRefAccess	316	317	+0.3%	1.00x (?)
ObjectiveCBridgeStubToArrayOfNSString	28008	28470	+1.6%	0.98x (?)
ObjectiveCBridgeStubToNSDate	14221	14699	+3.4%	0.97x (?)
ObjectiveCBridgeStubToNSDateRef	3382	3282	-3.0%	1.03x (?)
ObjectiveCBridgeStubToNSString	1514	1512	-0.1%	1.00x (?)
ObjectiveCBridgeStubToNSStringRef	110	109	-0.9%	1.01x (?)
ObjectiveCBridgeStubURLAppendPath	213503	212427	-0.5%	1.01x (?)
ObjectiveCBridgeStubURLAppendPathRef	213851	215085	+0.6%	0.99x (?)
ObjectiveCBridgeToNSArray	29146	28426	-2.5%	1.03x (?)
ObjectiveCBridgeToNSDictionary	60958	60730	-0.4%	1.00x (?)
ObjectiveCBridgeToNSSet	39073	38662	-1.1%	1.01x (?)
ObjectiveCBridgeToNSString	1271	1267	-0.3%	1.00x (?)
ObserverClosure	2292	2307	+0.7%	0.99x (?)
ObserverForwarderStruct	1170	1167	-0.3%	1.00x (?)
ObserverPartiallyAppliedMethod	3832	3855	+0.6%	0.99x (?)
ObserverUnappliedMethod	2722	2682	-1.5%	1.01x (?)
Phonebook	7997	8158	+2.0%	0.98x
PolymorphicCalls	22	22	+0.0%	1.00x
PopFrontArray	1071	1070	-0.1%	1.00x (?)
PopFrontArrayGeneric	1074	1066	-0.7%	1.01x (?)
PopFrontUnsafePointer	8891	8880	-0.1%	1.00x (?)
PrefixAnyCollection	127	127	+0.0%	1.00x
PrefixAnyCollectionLazy	44831	44974	+0.3%	1.00x (?)
PrefixAnySeqCRangeIter	21757	21718	-0.2%	1.00x (?)
PrefixAnySeqCRangeIterLazy	21755	21715	-0.2%	1.00x (?)
PrefixAnySeqCntRange	115	116	+0.9%	0.99x (?)
PrefixAnySeqCntRangeLazy	115	116	+0.9%	0.99x
PrefixAnySequence	6125	6084	-0.7%	1.01x (?)
PrefixAnySequenceLazy	6124	6086	-0.6%	1.01x (?)
PrefixArray	29	29	+0.0%	1.00x
PrefixCountableRange	23	23	+0.0%	1.00x
PrefixCountableRangeLazy	23	23	+0.0%	1.00x
PrefixSequence	2637	2637	+0.0%	1.00x
PrefixSequenceLazy	2600	2600	+0.0%	1.00x
PrefixWhileAnyCollection	162	160	-1.2%	1.01x
PrefixWhileAnyCollectionLazy	77	77	+0.0%	1.00x
PrefixWhileAnySeqCRangeIterLazy	77	77	+0.0%	1.00x
PrefixWhileAnySeqCntRange	154	154	+0.0%	1.00x
PrefixWhileAnySeqCntRangeLazy	77	77	+0.0%	1.00x
PrefixWhileAnySequenceLazy	1587	1587	+0.0%	1.00x
PrefixWhileCountableRange	36	35	-2.8%	1.03x
PrefixWhileCountableRangeLazy	23	23	+0.0%	1.00x
PrefixWhileSequenceLazy	39	39	+0.0%	1.00x
Prims	776	776	+0.0%	1.00x
ProtocolDispatch2	169	161	-4.7%	1.05x
RC4	171	170	-0.6%	1.01x (?)
RGBHistogram	2287	2274	-0.6%	1.01x (?)
RGBHistogramOfObjects	24071	24040	-0.1%	1.00x (?)
RangeAssignment	316	302	-4.4%	1.05x (?)
RecursiveOwnedParameter	2327	2322	-0.2%	1.00x (?)
ReversedArray	49	49	+0.0%	1.00x
ReversedBidirectional	29121	29052	-0.2%	1.00x
ReversedDictionary	110	110	+0.0%	1.00x
SetExclusiveOr	2842	2945	+3.6%	0.97x (?)
SetExclusiveOr_OfObjects	9583	9607	+0.3%	1.00x (?)
SetIntersect	282	281	-0.4%	1.00x (?)
SetIntersect_OfObjects	1724	1726	+0.1%	1.00x (?)
SetIsSubsetOf	286	286	+0.0%	1.00x
SetIsSubsetOf_OfObjects	359	359	+0.0%	1.00x
SetUnion	2566	2619	+2.1%	0.98x (?)
SetUnion_OfObjects	8084	8132	+0.6%	0.99x (?)
SevenBoom	1465	1463	-0.1%	1.00x (?)
Sim2DArray	276	276	+0.0%	1.00x
SortLargeExistentials	7945	7996	+0.6%	0.99x
SortLettersInPlace	1147	1145	-0.2%	1.00x (?)
SortSortedStrings	822	844	+2.7%	0.97x (?)
SortStrings	1611	1621	+0.6%	0.99x (?)
SortStringsUnicode	7789	7755	-0.4%	1.00x (?)
StackPromo	22027	22092	+0.3%	1.00x (?)
StaticArray	21	21	+0.0%	1.00x
StrComplexWalk	990	983	-0.7%	1.01x (?)
StringAdder	0	0	+0.0%	1.00x
StringBuilderLong	975	974	-0.1%	1.00x (?)
StringEdits	379715	380115	+0.1%	1.00x (?)
StringEqualPointerComparison	7282	7341	+0.8%	0.99x
StringHasPrefix	696	719	+3.3%	0.97x (?)
StringHasPrefixUnicode	14550	14967	+2.9%	0.97x
StringHasSuffixUnicode	61869	61718	-0.2%	1.00x (?)
StringInterpolation	8393	8417	+0.3%	1.00x (?)
StringMatch	16154	16282	+0.8%	0.99x (?)
StringWalk	6061	6061	+0.0%	1.00x
StringWithCString	335335	335109	-0.1%	1.00x (?)
SuffixAnyCollection	52	52	+0.0%	1.00x
SuffixAnyCollectionLazy	15013	15014	+0.0%	1.00x (?)
SuffixAnySeqCntRange	41	41	+0.0%	1.00x
SuffixAnySeqCntRangeLazy	40	41	+2.5%	0.98x
SuffixArray	10	10	+0.0%	1.00x
SuffixArrayLazy	10	10	+0.0%	1.00x
SuffixCountableRange	8	8	+0.0%	1.00x
SuffixCountableRangeLazy	8	8	+0.0%	1.00x
SuperChars	289951	288166	-0.6%	1.01x (?)
TwoSum	905	903	-0.2%	1.00x (?)
TypeFlood	0	0	+0.0%	1.00x
Walsh	356	355	-0.3%	1.00x (?)
XorLoop	348	347	-0.3%	1.00x

**Unoptimized (Onone)**

Regression (11)

TEST	OLD	NEW	DELTA	SPEEDUP
Chars	7395	14508	+96.2%	0.51x
ArrayValueProp2	3663	6738	+83.9%	0.54x
StringBuilder	2856	3752	+31.4%	0.76x
StrToInt	7992	10311	+29.0%	0.78x
StringUTF16Builder	3723	4711	+26.5%	0.79x
ObjectAllocation	635	798	+25.7%	0.80x
ErrorHandling	3805	4487	+17.9%	0.85x
Dictionary	1994	2303	+15.5%	0.87x
AngryPhonebook	3127	3408	+9.0%	0.92x
DictionaryOfObjects	4897	5199	+6.2%	0.94x
SuperChars	309940	327656	+5.7%	0.95x

Improvement (50)

TEST	OLD	NEW	DELTA	SPEEDUP
PrefixArray	6189	1332	-78.5%	4.65x
DropFirstArray	6193	1333	-78.5%	4.65x
DropLastArray	2072	452	-78.2%	4.58x
SuffixArray	2074	453	-78.2%	4.58x
UTF8Decode	36894	10013	-72.9%	3.68x
DropWhileArrayLazy	17041	4862	-71.5%	3.50x
PrefixWhileArrayLazy	14731	5594	-62.0%	2.63x
ReversedDictionary	26121	9975	-61.8%	2.62x
ArrayAppendLazyMap	207667	88373	-57.4%	2.35x
DropWhileArray	9784	4934	-49.6%	1.98x
DictionaryLiteral	13199	6932	-47.5%	1.90x
Join	1260	665	-47.2%	1.89x
MapReduceLazyCollection	32778	17891	-45.4%	1.83x
MapReduceString	2639	1475	-44.1%	1.79x
LazilyFilteredArrays	`1681066`	974474	-42.0%	1.73x
MapReduce	38034	23004	-39.5%	1.65x
MapReduceAnyCollection	37822	23034	-39.1%	1.64x
MapReduceLazyCollectionShort	44351	28134	-36.6%	1.58x
MapReduceSequence	40859	26225	-35.8%	1.56x
MapReduceClass	43174	28378	-34.3%	1.52x
MapReduceAnyCollectionShort	50739	34117	-32.8%	1.49x
MapReduceShort	50391	33943	-32.6%	1.48x
MapReduceShortString	279	188	-32.6%	1.48x
PrefixWhileSequence	28466	19526	-31.4%	1.46x
PrefixWhileAnySequence	29506	20631	-30.1%	1.43x
MapReduceClassShort	54236	38183	-29.6%	1.42x
PrefixWhileArray	17022	11985	-29.6%	1.42x
Histogram	8790	6243	-29.0%	1.41x
ObserverForwarderStruct	4705	3388	-28.0%	1.39x
MonteCarloE	135380	106025	-21.7%	1.28x
ObserverClosure	6635	5241	-21.0%	1.27x
PrefixWhileAnySeqCRangeIter	40957	33323	-18.6%	1.23x
ObserverPartiallyAppliedMethod	8121	6641	-18.2%	1.22x
ObserverUnappliedMethod	8471	7155	-15.5%	1.18x
RGBHistogram	33828	29644	-12.4%	1.14x
SuffixAnySequenceLazy	26817	23752	-11.4%	1.13x
SuffixAnySequence	26871	23806	-11.4%	1.13x
SuffixSequence	26457	23443	-11.4%	1.13x
SuffixSequenceLazy	26430	23423	-11.4%	1.13x
DropLastAnySequence	29196	26102	-10.6%	1.12x
DropLastSequenceLazy	28767	25724	-10.6%	1.12x
DropLastSequence	28709	25686	-10.5%	1.12x
DropLastAnySequenceLazy	29092	26101	-10.3%	1.11x
StringEdits	677938	610193	-10.0%	1.11x
OpenClose	458	416	-9.2%	1.10x
ObjectiveCBridgeStubFromNSDateRef	4244	3942	-7.1%	1.08x
SuffixAnySeqCRangeIterLazy	41809	38837	-7.1%	1.08x
SuffixAnySeqCRangeIter	41396	38489	-7.0%	1.08x
ArrayAppendReserved	3654	3423	-6.3%	1.07x
ArrayOfGenericPOD	3237	3073	-5.1%	1.05x

No Changes (208)

TEST	OLD	NEW	DELTA	SPEEDUP
AnyHashableWithAClass	84864	84874	+0.0%	1.00x (?)
Array2D	608169	607980	-0.0%	1.00x (?)
ArrayAppend	3843	3695	-3.9%	1.04x
ArrayAppendArrayOfInt	659	659	+0.0%	1.00x
ArrayAppendAscii	83835	83415	-0.5%	1.01x
ArrayAppendFromGeneric	663	664	+0.2%	1.00x (?)
ArrayAppendGenericStructs	1300	1305	+0.4%	1.00x (?)
ArrayAppendLatin1	105247	103899	-1.3%	1.01x
ArrayAppendOptionals	1301	1312	+0.8%	0.99x
ArrayAppendRepeatCol	213219	208770	-2.1%	1.02x
ArrayAppendSequence	75779	76133	+0.5%	1.00x
ArrayAppendStrings	13611	13679	+0.5%	1.00x (?)
ArrayAppendToFromGeneric	662	662	+0.0%	1.00x
ArrayAppendToGeneric	663	663	+0.0%	1.00x
ArrayAppendUTF16	103806	102699	-1.1%	1.01x (?)
ArrayInClass	4734	4735	+0.0%	1.00x (?)
ArrayLiteral	1504	1488	-1.1%	1.01x
ArrayOfGenericRef	9641	9660	+0.2%	1.00x (?)
ArrayOfPOD	1892	1892	+0.0%	1.00x
ArrayOfRef	8803	8814	+0.1%	1.00x (?)
ArrayPlusEqualArrayOfInt	660	661	+0.2%	1.00x (?)
ArrayPlusEqualFiveElementCollection	286005	285341	-0.2%	1.00x (?)
ArrayPlusEqualSingleElementCollection	286555	283311	-1.1%	1.01x (?)
ArrayPlusEqualThreeElements	11670	11654	-0.1%	1.00x (?)
ArraySubscript	4167	4180	+0.3%	1.00x (?)
ArrayValueProp	2980	3022	+1.4%	0.99x
ArrayValueProp3	3438	3420	-0.5%	1.01x (?)
ArrayValueProp4	3336	3338	+0.1%	1.00x (?)
BitCount	889	875	-1.6%	1.02x
ByteSwap	268	262	-2.2%	1.02x (?)
CStringLongAscii	12911	12869	-0.3%	1.00x (?)
CStringLongNonAscii	4175	4164	-0.3%	1.00x (?)
CStringShortAscii	8862	9113	+2.8%	0.97x
Calculator	955	991	+3.8%	0.96x
CaptureProp	107060	107796	+0.7%	0.99x (?)
CharacterLiteralsLarge	10525	10858	+3.2%	0.97x
CharacterLiteralsSmall	971	971	+0.0%	1.00x
ClassArrayGetter	931	930	-0.1%	1.00x (?)
DeadArray	116479	118863	+2.0%	0.98x (?)
Dictionary2	3841	3835	-0.2%	1.00x (?)
Dictionary2OfObjects	6145	6098	-0.8%	1.01x (?)
Dictionary3	1492	1485	-0.5%	1.00x (?)
Dictionary3OfObjects	2365	2377	+0.5%	0.99x (?)
DictionaryBridge	2887	2912	+0.9%	0.99x (?)
DictionaryRemove	21518	21041	-2.2%	1.02x (?)
DictionaryRemoveOfObjects	54940	54888	-0.1%	1.00x (?)
DictionarySwap	5591	5453	-2.5%	1.03x
DictionarySwapOfObjects	19881	19790	-0.5%	1.00x (?)
DropFirstAnyCollection	19082	19239	+0.8%	0.99x
DropFirstAnyCollectionLazy	135978	135250	-0.5%	1.01x (?)
DropFirstAnySeqCRangeIter	30105	29704	-1.3%	1.01x
DropFirstAnySeqCRangeIterLazy	30274	29665	-2.0%	1.02x (?)
DropFirstAnySeqCntRange	19072	19021	-0.3%	1.00x (?)
DropFirstAnySeqCntRangeLazy	19075	19098	+0.1%	1.00x
DropFirstAnySequence	14381	14027	-2.5%	1.03x (?)
DropFirstAnySequenceLazy	14046	14289	+1.7%	0.98x
DropFirstArrayLazy	45487	45486	-0.0%	1.00x (?)
DropFirstCountableRange	341	340	-0.3%	1.00x (?)
DropFirstCountableRangeLazy	38294	38637	+0.9%	0.99x
DropFirstSequence	12993	12875	-0.9%	1.01x (?)
DropFirstSequenceLazy	13226	12891	-2.5%	1.03x
DropLastAnyCollection	6390	6418	+0.4%	1.00x (?)
DropLastAnyCollectionLazy	46413	46343	-0.2%	1.00x (?)
DropLastAnySeqCRangeIter	44159	42898	-2.9%	1.03x
DropLastAnySeqCRangeIterLazy	44159	42548	-3.6%	1.04x
DropLastAnySeqCntRange	6381	6433	+0.8%	0.99x (?)
DropLastAnySeqCntRangeLazy	6388	6359	-0.5%	1.00x (?)
DropLastArrayLazy	15128	15178	+0.3%	1.00x (?)
DropLastCountableRange	119	119	+0.0%	1.00x
DropLastCountableRangeLazy	12792	12672	-0.9%	1.01x (?)
DropWhileAnyCollection	24929	25055	+0.5%	0.99x (?)
DropWhileAnyCollectionLazy	27269	26886	-1.4%	1.01x (?)
DropWhileAnySeqCRangeIter	31888	31771	-0.4%	1.00x (?)
DropWhileAnySeqCRangeIterLazy	27469	27198	-1.0%	1.01x (?)
DropWhileAnySeqCntRange	24911	24947	+0.1%	1.00x (?)
DropWhileAnySeqCntRangeLazy	27418	27123	-1.1%	1.01x (?)
DropWhileAnySequence	15938	16092	+1.0%	0.99x
DropWhileAnySequenceLazy	12422	12422	+0.0%	1.00x
DropWhileCountableRange	6153	6132	-0.3%	1.00x (?)
DropWhileCountableRangeLazy	26414	26044	-1.4%	1.01x (?)
DropWhileSequence	14985	15065	+0.5%	0.99x (?)
DropWhileSequenceLazy	11209	11265	+0.5%	1.00x (?)
GlobalClass	0	0	+0.0%	1.00x
Hanoi	17475	17658	+1.0%	0.99x
HashQuadratic	47947536	50202047	+4.7%	0.96x
HashTest	18385	19070	+3.7%	0.96x
Integrate	398	398	+0.0%	1.00x
IterateData	12631	12863	+1.8%	0.98x
LazilyFilteredRange	685217	674804	-1.5%	1.02x (?)
LinkedList	32993	32938	-0.2%	1.00x (?)
MapReduceLazySequence	25344	25324	-0.1%	1.00x (?)
Memset	43983	43987	+0.0%	1.00x (?)
MonteCarloPi	52402	52688	+0.5%	0.99x
NSDictionaryCastToSwift	6410	6433	+0.4%	1.00x (?)
NSError	717	718	+0.1%	1.00x (?)
NSStringConversion	1305	1345	+3.1%	0.97x (?)
NopDeinit	50414	51799	+2.7%	0.97x
ObjectiveCBridgeFromNSArrayAnyObject	25581	24701	-3.4%	1.04x (?)
ObjectiveCBridgeFromNSArrayAnyObjectForced	7811	7761	-0.6%	1.01x (?)
ObjectiveCBridgeFromNSArrayAnyObjectToString	44927	45095	+0.4%	1.00x (?)
ObjectiveCBridgeFromNSArrayAnyObjectToStringForced	38843	38464	-1.0%	1.01x (?)
ObjectiveCBridgeFromNSDictionaryAnyObject	126813	126962	+0.1%	1.00x (?)
ObjectiveCBridgeFromNSDictionaryAnyObjectForced	7195	7401	+2.9%	0.97x (?)
ObjectiveCBridgeFromNSDictionaryAnyObjectToString	107218	106671	-0.5%	1.01x (?)
ObjectiveCBridgeFromNSDictionaryAnyObjectToStringForced	101459	101213	-0.2%	1.00x (?)
ObjectiveCBridgeFromNSSetAnyObject	67813	67307	-0.7%	1.01x (?)
ObjectiveCBridgeFromNSSetAnyObjectForced	6981	7120	+2.0%	0.98x (?)
ObjectiveCBridgeFromNSSetAnyObjectToString	86174	86343	+0.2%	1.00x (?)
ObjectiveCBridgeFromNSSetAnyObjectToStringForced	75012	75601	+0.8%	0.99x (?)
ObjectiveCBridgeFromNSString	4026	4023	-0.1%	1.00x (?)
ObjectiveCBridgeFromNSStringForced	2696	2706	+0.4%	1.00x (?)
ObjectiveCBridgeStubDataAppend	3837	3921	+2.2%	0.98x (?)
ObjectiveCBridgeStubDateAccess	1016	1016	+0.0%	1.00x
ObjectiveCBridgeStubDateMutation	519	515	-0.8%	1.01x
ObjectiveCBridgeStubFromArrayOfNSString	28782	28715	-0.2%	1.00x (?)
ObjectiveCBridgeStubFromNSDate	4181	4114	-1.6%	1.02x (?)
ObjectiveCBridgeStubFromNSString	949	990	+4.3%	0.96x
ObjectiveCBridgeStubFromNSStringRef	210	218	+3.8%	0.96x
ObjectiveCBridgeStubNSDataAppend	2659	2643	-0.6%	1.01x (?)
ObjectiveCBridgeStubNSDateMutationRef	15308	14789	-3.4%	1.04x (?)
ObjectiveCBridgeStubNSDateRefAccess	1218	1219	+0.1%	1.00x (?)
ObjectiveCBridgeStubToArrayOfNSString	29662	29125	-1.8%	1.02x (?)
ObjectiveCBridgeStubToNSDate	14869	15505	+4.3%	0.96x (?)
ObjectiveCBridgeStubToNSDateRef	3335	3375	+1.2%	0.99x (?)
ObjectiveCBridgeStubToNSString	1567	1568	+0.1%	1.00x (?)
ObjectiveCBridgeStubToNSStringRef	148	149	+0.7%	0.99x (?)
ObjectiveCBridgeStubURLAppendPath	219648	219553	-0.0%	1.00x (?)
ObjectiveCBridgeStubURLAppendPathRef	217474	218251	+0.4%	1.00x (?)
ObjectiveCBridgeToNSArray	29334	29062	-0.9%	1.01x (?)
ObjectiveCBridgeToNSDictionary	62909	61366	-2.5%	1.03x (?)
ObjectiveCBridgeToNSSet	40530	39434	-2.7%	1.03x
ObjectiveCBridgeToNSString	1314	1312	-0.2%	1.00x (?)
Phonebook	24250	24338	+0.4%	1.00x (?)
PolymorphicCalls	2949	2951	+0.1%	1.00x (?)
PopFrontArray	9905	9862	-0.4%	1.00x
PopFrontArrayGeneric	8812	8850	+0.4%	1.00x
PopFrontUnsafePointer	97355	99495	+2.2%	0.98x
PrefixAnyCollection	19103	19219	+0.6%	0.99x
PrefixAnyCollectionLazy	138975	137625	-1.0%	1.01x (?)
PrefixAnySeqCRangeIter	24132	23974	-0.7%	1.01x (?)
PrefixAnySeqCRangeIterLazy	24257	24065	-0.8%	1.01x
PrefixAnySeqCntRange	19089	19014	-0.4%	1.00x
PrefixAnySeqCntRangeLazy	19080	19108	+0.1%	1.00x (?)
PrefixAnySequence	12031	11789	-2.0%	1.02x
PrefixAnySequenceLazy	11967	11786	-1.5%	1.02x
PrefixArrayLazy	45480	45481	+0.0%	1.00x (?)
PrefixCountableRange	341	341	+0.0%	1.00x
PrefixCountableRangeLazy	38399	38613	+0.6%	0.99x (?)
PrefixSequence	11039	10756	-2.6%	1.03x (?)
PrefixSequenceLazy	10889	10696	-1.8%	1.02x
PrefixWhileAnyCollection	36441	36829	+1.1%	0.99x
PrefixWhileAnyCollectionLazy	22587	22440	-0.7%	1.01x (?)
PrefixWhileAnySeqCRangeIterLazy	22577	22553	-0.1%	1.00x (?)
PrefixWhileAnySeqCntRange	36445	36622	+0.5%	1.00x (?)
PrefixWhileAnySeqCntRangeLazy	22494	22388	-0.5%	1.00x (?)
PrefixWhileAnySequenceLazy	11456	11371	-0.7%	1.01x
PrefixWhileCountableRange	17584	17597	+0.1%	1.00x (?)
PrefixWhileCountableRangeLazy	21816	21639	-0.8%	1.01x (?)
PrefixWhileSequenceLazy	10509	10451	-0.6%	1.01x
Prims	8979	8721	-2.9%	1.03x
ProtocolDispatch	7295	7308	+0.2%	1.00x (?)
ProtocolDispatch2	489	489	+0.0%	1.00x
RC4	19497	20476	+5.0%	0.95x
RGBHistogramOfObjects	98107	94004	-4.2%	1.04x
RangeAssignment	5873	5818	-0.9%	1.01x (?)
RecursiveOwnedParameter	9639	9638	-0.0%	1.00x (?)
ReversedArray	589	591	+0.3%	1.00x (?)
ReversedBidirectional	75489	75346	-0.2%	1.00x (?)
SetExclusiveOr	21351	20958	-1.8%	1.02x
SetExclusiveOr_OfObjects	41279	41417	+0.3%	1.00x
SetIntersect	10970	10567	-3.7%	1.04x
SetIntersect_OfObjects	11293	11224	-0.6%	1.01x
SetIsSubsetOf	1650	1641	-0.5%	1.01x (?)
SetIsSubsetOf_OfObjects	1579	1524	-3.5%	1.04x
SetUnion	12342	12051	-2.4%	1.02x
SetUnion_OfObjects	29605	29683	+0.3%	1.00x
SevenBoom	1612	1608	-0.2%	1.00x (?)
Sim2DArray	30033	30032	-0.0%	1.00x (?)
SortLargeExistentials	17721	17865	+0.8%	0.99x
SortLettersInPlace	2876	2851	-0.9%	1.01x (?)
SortSortedStrings	1401	1405	+0.3%	1.00x
SortStrings	2445	2460	+0.6%	0.99x
SortStringsUnicode	8897	9016	+1.3%	0.99x
StackPromo	102166	101655	-0.5%	1.01x (?)
StaticArray	4549	4565	+0.4%	1.00x
StrComplexWalk	5975	6257	+4.7%	0.95x
StringAdder	42	42	+0.0%	1.00x
StringBuilderLong	1122	1115	-0.6%	1.01x
StringEqualPointerComparison	9542	9758	+2.3%	0.98x
StringHasPrefix	1733	1772	+2.3%	0.98x (?)
StringHasPrefixUnicode	15928	16568	+4.0%	0.96x
StringHasSuffix	1819	1847	+1.5%	0.98x
StringHasSuffixUnicode	64117	63596	-0.8%	1.01x
StringInterpolation	12237	12176	-0.5%	1.01x (?)
StringMatch	39151	38665	-1.2%	1.01x
StringWalk	22362	23352	+4.4%	0.96x
StringWithCString	334400	334305	-0.0%	1.00x (?)
SuffixAnyCollection	6384	6422	+0.6%	0.99x (?)
SuffixAnyCollectionLazy	45561	45710	+0.3%	1.00x (?)
SuffixAnySeqCntRange	6388	6446	+0.9%	0.99x (?)
SuffixAnySeqCntRangeLazy	6380	6359	-0.3%	1.00x
SuffixArrayLazy	15153	15171	+0.1%	1.00x (?)
SuffixCountableRange	119	119	+0.0%	1.00x
SuffixCountableRangeLazy	12738	12658	-0.6%	1.01x
TwoSum	4392	4302	-2.0%	1.02x
TypeFlood	164	170	+3.7%	0.96x (?)
Walsh	12049	11898	-1.3%	1.01x
XorLoop	23707	23707	+0.0%	1.00x

**Hardware Overview** Model Name: Mac mini Model Identifier: Macmini7,1 Processor Name: Intel Core i5 Processor Speed: 2.8 GHz Number of Processors: 1 Total Number of Cores: 2 L2 Cache (per Core): 256 KB L3 Cache: 3 MB Memory: 16 GB

…tors This patch is supposed to recover the performance regressions that would be introduced by yet to be merged PR swiftlang#9145, which introduces custom, more efficient array iterators. The crucial part of this patch is running loop unrolling also during the mid-level optimizations phase, because it may catch more loops with constant trip counts. To make trip counts constant, an additional run of constant propagation is helpful.

swiftix · 2017-08-02T22:52:29Z

@swift-ci please smoke benchmark

swift-ci · 2017-08-03T04:36:25Z

Build comment file:

Optimized (O)

Regression (3)

TEST	OLD	NEW	DELTA	SPEEDUP
EqualSubstringSubstringGenericEquatable	378	413	+9.3%	0.92x (?)
ErrorHandling	1992	2109	+5.9%	0.94x
ReversedDictionary	103	109	+5.8%	0.94x (?)

Improvement (136)

TEST	OLD	NEW	DELTA	SPEEDUP
MapReduceAnyCollection	431	357	-17.2%	1.21x
ArrayValueProp	6	5	-16.7%	1.20x
ArrayValueProp4	6	5	-16.7%	1.20x
CharIteration_ascii_unicodeScalars_Backwards	18291	15829	-13.5%	1.16x
CharIteration_chinese_unicodeScalars	13389	11686	-12.7%	1.15x
SuffixArray	8	7	-12.5%	1.14x
ArrayAppendOptionals	1289	1138	-11.7%	1.13x
CaptureProp	5176	4575	-11.6%	1.13x
ArrayAppendRepeatCol	897	793	-11.6%	1.13x
MapReduceString	115	102	-11.3%	1.13x
CharIteration_korean_unicodeScalars	17246	15298	-11.3%	1.13x
MapReduce	427	380	-11.0%	1.12x
CharIteration_punctuated_unicodeScalars_Backwards	4007	3567	-11.0%	1.12x
CharIteration_japanese_unicodeScalars	21105	18819	-10.8%	1.12x
CharIteration_chinese_unicodeScalars_Backwards	13790	12320	-10.7%	1.12x
StringWithCString	65879	58901	-10.6%	1.12x
CharIteration_russian_unicodeScalars	14484	12988	-10.3%	1.12x
SubstringFromLongString	10	9	-10.0%	1.11x
DictionarySwap	462	417	-9.7%	1.11x
ArrayAppend	805	728	-9.6%	1.11x
CharIteration_tweet_unicodeScalars_Backwards	34749	31429	-9.6%	1.11x
Dictionary3	462	419	-9.3%	1.10x
NSStringConversion	368	334	-9.2%	1.10x
Dictionary3OfObjects	931	845	-9.2%	1.10x
CharIteration_japanese_unicodeScalars_Backwards	21433	19488	-9.1%	1.10x
CharIndexing_chinese_unicodeScalars	11491	10452	-9.0%	1.10x
ArrayAppendReserved	553	503	-9.0%	1.10x
CStringLongAscii	5243	4769	-9.0%	1.10x
CharIndexing_punctuatedJapanese_unicodeScalars	2762	2515	-8.9%	1.10x
ArrayAppendLazyMap	1092	995	-8.9%	1.10x
ArrayPlusEqualFiveElementCollection	4939	4507	-8.7%	1.10x
MapReduceLazyCollectionShort	46	42	-8.7%	1.10x
ObjectiveCBridgeStubFromNSString	564	515	-8.7%	1.10x
CharIteration_tweet_unicodeScalars	33990	31047	-8.7%	1.09x
DropFirstAnySeqCRangeIter	30870	28255	-8.5%	1.09x
ArrayAppendLatin1	45309	41552	-8.3%	1.09x (?)
Dictionary2OfObjects	3488	3199	-8.3%	1.09x
ObjectiveCBridgeStubToNSDateRef	3275	3004	-8.3%	1.09x
LessSubstringSubstring	400	367	-8.2%	1.09x
ObjectiveCBridgeStubDataAppend	4080	3744	-8.2%	1.09x
Dictionary	585	537	-8.2%	1.09x
CharIteration_punctuated_unicodeScalars	3868	3553	-8.1%	1.09x
CharIndexing_korean_unicodeScalars_Backwards	11947	10977	-8.1%	1.09x
ObjectiveCBridgeFromNSSetAnyObject	69621	64009	-8.1%	1.09x
ObjectiveCBridgeFromNSArrayAnyObjectToString	42286	38887	-8.0%	1.09x
NSError	300	276	-8.0%	1.09x
ObjectAllocation	188	173	-8.0%	1.09x
MapReduceShort	2032	1871	-7.9%	1.09x
ObjectiveCBridgeFromNSSetAnyObjectToString	71735	66108	-7.8%	1.09x
ObjectiveCBridgeFromNSString	1089	1004	-7.8%	1.08x
CharIndexing_japanese_unicodeScalars_Backwards	14714	13568	-7.8%	1.08x
DictionaryBridge	2713	2502	-7.8%	1.08x
CharIndexing_punctuated_unicodeScalars	3407	3143	-7.7%	1.08x
CharIteration_ascii_unicodeScalars	16923	15615	-7.7%	1.08x
DictionaryRemove	2647	2443	-7.7%	1.08x
ArrayInClass	65	60	-7.7%	1.08x
ClassArrayGetter	13	12	-7.7%	1.08x
CharIndexing_punctuated_unicodeScalars_Backwards	2822	2606	-7.7%	1.08x
ArrayAppendSequence	968	894	-7.6%	1.08x
NopDeinit	23966	22143	-7.6%	1.08x (?)
Dictionary2	1927	1781	-7.6%	1.08x
CharIndexing_tweet_unicodeScalars_Backwards	24104	22298	-7.5%	1.08x
LazilyFilteredRange	3955	3660	-7.5%	1.08x
CharIteration_russian_unicodeScalars_Backwards	14641	13549	-7.5%	1.08x
RangeAssignment	349	323	-7.4%	1.08x (?)
ObjectiveCBridgeFromNSArrayAnyObjectForced	3659	3387	-7.4%	1.08x
CharIteration_punctuatedJapanese_unicodeScalars	3061	2834	-7.4%	1.08x
ObjectiveCBridgeFromNSSetAnyObjectToStringForced	71712	66416	-7.4%	1.08x
ObjectiveCBridgeFromNSDictionaryAnyObject	126033	116775	-7.3%	1.08x
DeadArray	191	177	-7.3%	1.08x
ArrayAppendUTF16	43604	40408	-7.3%	1.08x
Array2D	2233	2070	-7.3%	1.08x (?)
ObjectiveCBridgeFromNSDictionaryAnyObjectForced	5438	5046	-7.2%	1.08x (?)
ObjectiveCBridgeFromNSArrayAnyObject	23711	22006	-7.2%	1.08x
CharIndexing_ascii_unicodeScalars	15318	14222	-7.2%	1.08x
PrefixAnyCollection	56	52	-7.1%	1.08x
ArrayPlusEqualThreeElements	1723	1600	-7.1%	1.08x
CharIndexing_chinese_unicodeScalars_Backwards	9228	8575	-7.1%	1.08x
DictionaryGroupOfObjects	1811	1683	-7.1%	1.08x
ObjectiveCBridgeStubDateAccess	184	171	-7.1%	1.08x
Chars	439	408	-7.1%	1.08x
CharIteration_korean_unicodeScalars_Backwards	16971	15793	-6.9%	1.07x
ArrayOfGenericRef	4214	3924	-6.9%	1.07x
ObjectiveCBridgeStubNSDataAppend	2573	2396	-6.9%	1.07x
CharacterLiteralsSmall	409	381	-6.8%	1.07x
Join	399	372	-6.8%	1.07x
ObjectiveCBridgeFromNSDictionaryAnyObjectToStringForced	107487	100272	-6.7%	1.07x
PrefixAnyCollectionLazy	46219	43147	-6.6%	1.07x
CharIndexing_utf16_unicodeScalars	78499	73287	-6.6%	1.07x
CStringShortAscii	4864	4543	-6.6%	1.07x
DictionaryLiteral	1533	1432	-6.6%	1.07x
DropFirstAnySeqCRangeIterLazy	31568	29498	-6.6%	1.07x
ArrayAppendAscii	21805	20377	-6.5%	1.07x (?)
CharIndexing_tweet_unicodeScalars	29126	27238	-6.5%	1.07x
CharIndexing_japanese_unicodeScalars	17933	16771	-6.5%	1.07x
CharIndexing_ascii_unicodeScalars_Backwards	12103	11319	-6.5%	1.07x
LessSubstringSubstringGenericComparable	403	377	-6.5%	1.07x
CharacterLiteralsLarge	6141	5745	-6.4%	1.07x
ObjectiveCBridgeFromNSArrayAnyObjectToStringForced	36396	34053	-6.4%	1.07x
AngryPhonebook	3118	2918	-6.4%	1.07x (?)
PrefixWhileSequence	313	293	-6.4%	1.07x
LazilyFilteredArrays	66155	61931	-6.4%	1.07x
CharIndexing_punctuatedJapanese_unicodeScalars_Backwards	2241	2099	-6.3%	1.07x
ObjectiveCBridgeFromNSSetAnyObjectForced	4538	4252	-6.3%	1.07x
CharIndexing_utf16_unicodeScalars_Backwards	77367	72497	-6.3%	1.07x
ArrayLiteral	1272	1192	-6.3%	1.07x
Calculator	32	30	-6.2%	1.07x
MapReduceLazyCollection	16	15	-6.2%	1.07x
CharIndexing_russian_unicodeScalars	12309	11548	-6.2%	1.07x
ObjectiveCBridgeStubFromArrayOfNSString	25706	24139	-6.1%	1.06x (?)
DropFirstAnySequence	9728	9135	-6.1%	1.06x
ArrayAppendStrings	14063	13206	-6.1%	1.06x
ObjectiveCBridgeFromNSStringForced	1973	1854	-6.0%	1.06x
DictionarySwapOfObjects	7697	7242	-5.9%	1.06x
CharIndexing_russian_unicodeScalars_Backwards	10113	9521	-5.9%	1.06x
ArrayOfRef	4056	3819	-5.8%	1.06x (?)
XorLoop	348	328	-5.7%	1.06x
NSDictionaryCastToSwift	5642	5318	-5.7%	1.06x
ArrayAppendGenericStructs	1206	1137	-5.7%	1.06x
MapReduceSequence	439	414	-5.7%	1.06x
DropFirstAnySeqCntRange	53	50	-5.7%	1.06x
CharIteration_punctuatedJapanese_unicodeScalars_Backwards	3097	2923	-5.6%	1.06x
ArraySubscript	1523	1438	-5.6%	1.06x
ArrayPlusEqualSingleElementCollection	792	748	-5.6%	1.06x
MapReduceClassShort	4560	4307	-5.5%	1.06x
ObjectiveCBridgeStubToArrayOfNSString	29282	27689	-5.4%	1.06x (?)
CStringLongNonAscii	2271	2148	-5.4%	1.06x
CharIteration_utf16_unicodeScalars	92128	87151	-5.4%	1.06x
DictionaryGroup	278	263	-5.4%	1.06x
MapReduceAnyCollectionShort	2067	1958	-5.3%	1.06x
DropLastAnyCollection	19	18	-5.3%	1.06x
ObjectiveCBridgeToNSDictionary	46020	43604	-5.2%	1.06x
SortSortedStrings	824	781	-5.2%	1.06x
DropLastAnySeqCRangeIter	5985	5673	-5.2%	1.05x (?)
ObjectiveCBridgeStubToNSString	1510	1433	-5.1%	1.05x
LinkedList	7088	6739	-4.9%	1.05x

No Changes (188)

TEST	OLD	NEW	DELTA	SPEEDUP
AnyHashableWithAClass	72657	74160	+2.1%	0.98x (?)
ArrayAppendArrayOfInt	585	563	-3.8%	1.04x
ArrayAppendFromGeneric	584	563	-3.6%	1.04x
ArrayAppendToFromGeneric	605	597	-1.3%	1.01x
ArrayAppendToGeneric	607	580	-4.4%	1.05x
ArrayOfGenericPOD	222	213	-4.1%	1.04x
ArrayOfPOD	168	161	-4.2%	1.04x
ArrayPlusEqualArrayOfInt	590	563	-4.6%	1.05x
ArrayValueProp2	5	5	+0.0%	1.00x
ArrayValueProp3	5	5	+0.0%	1.00x
BitCount	147	140	-4.8%	1.05x
ByteSwap	116	112	-3.4%	1.04x
CharIndexing_korean_unicodeScalars	14447	13784	-4.6%	1.05x
CharIteration_utf16_unicodeScalars_Backwards	112351	107907	-4.0%	1.04x
DictionaryOfObjects	2415	2305	-4.6%	1.05x
DictionaryRemoveOfObjects	22926	22762	-0.7%	1.01x
DropFirstAnyCollection	54	54	+0.0%	1.00x
DropFirstAnyCollectionLazy	44917	44352	-1.3%	1.01x
DropFirstAnySeqCntRangeLazy	51	49	-3.9%	1.04x
DropFirstAnySequenceLazy	9608	9336	-2.8%	1.03x
DropFirstArray	24	24	+0.0%	1.00x
DropFirstArrayLazy	24	23	-4.2%	1.04x
DropFirstCountableRange	30	30	+0.0%	1.00x
DropFirstCountableRangeLazy	30	30	+0.0%	1.00x
DropFirstSequence	2741	2656	-3.1%	1.03x
DropFirstSequenceLazy	2648	2587	-2.3%	1.02x
DropLastAnyCollectionLazy	14844	14467	-2.5%	1.03x
DropLastAnySeqCRangeIterLazy	6098	5826	-4.5%	1.05x
DropLastAnySeqCntRange	10	10	+0.0%	1.00x
DropLastAnySeqCntRangeLazy	10	10	+0.0%	1.00x
DropLastAnySequence	8541	8221	-3.7%	1.04x
DropLastAnySequenceLazy	8379	8177	-2.4%	1.02x
DropLastArray	8	8	+0.0%	1.00x
DropLastArrayLazy	8	8	+0.0%	1.00x
DropLastCountableRange	10	10	+0.0%	1.00x
DropLastCountableRangeLazy	10	10	+0.0%	1.00x
DropLastSequence	627	606	-3.3%	1.03x
DropLastSequenceLazy	632	610	-3.5%	1.04x
DropWhileAnyCollection	66	67	+1.5%	0.99x (?)
DropWhileAnyCollectionLazy	98	98	+0.0%	1.00x
DropWhileAnySeqCRangeIter	22100	21965	-0.6%	1.01x (?)
DropWhileAnySeqCRangeIterLazy	98	103	+5.1%	0.95x
DropWhileAnySeqCntRange	61	62	+1.6%	0.98x
DropWhileAnySeqCntRangeLazy	98	97	-1.0%	1.01x (?)
DropWhileAnySequence	7876	7794	-1.0%	1.01x (?)
DropWhileAnySequenceLazy	2618	2654	+1.4%	0.99x (?)
DropWhileArray	36	36	+0.0%	1.00x
DropWhileArrayLazy	74	73	-1.4%	1.01x
DropWhileCountableRange	34	34	+0.0%	1.00x
DropWhileCountableRangeLazy	65	64	-1.5%	1.02x
DropWhileSequence	1996	1989	-0.4%	1.00x
DropWhileSequenceLazy	62	61	-1.6%	1.02x
EqualStringSubstring	378	366	-3.2%	1.03x
EqualSubstringString	381	367	-3.7%	1.04x
EqualSubstringSubstring	378	380	+0.5%	0.99x (?)
FilterEvenUsingReduce	1248	1258	+0.8%	0.99x (?)
FilterEvenUsingReduceInto	143	139	-2.8%	1.03x
FrequenciesUsingReduce	7199	7524	+4.5%	0.96x (?)
FrequenciesUsingReduceInto	4298	4155	-3.3%	1.03x (?)
Hanoi	3327	3179	-4.4%	1.05x
HashTest	1667	1654	-0.8%	1.01x
Histogram	306	293	-4.2%	1.04x
Integrate	278	268	-3.6%	1.04x
IterateData	800	782	-2.2%	1.02x
MapReduceClass	2984	2882	-3.4%	1.04x
MapReduceLazySequence	87	85	-2.3%	1.02x
MapReduceShortString	22	21	-4.5%	1.05x
Memset	238	227	-4.6%	1.05x
MonteCarloE	10258	9852	-4.0%	1.04x
MonteCarloPi	42173	41474	-1.7%	1.02x
ObjectiveCBridgeFromNSDictionaryAnyObjectToString	101695	97279	-4.3%	1.05x
ObjectiveCBridgeStubDateMutation	268	259	-3.4%	1.03x
ObjectiveCBridgeStubFromNSDate	3729	3655	-2.0%	1.02x (?)
ObjectiveCBridgeStubFromNSDateRef	4155	3980	-4.2%	1.04x
ObjectiveCBridgeStubFromNSStringRef	142	138	-2.8%	1.03x
ObjectiveCBridgeStubNSDateMutationRef	12883	13133	+1.9%	0.98x (?)
ObjectiveCBridgeStubNSDateRefAccess	342	333	-2.6%	1.03x
ObjectiveCBridgeStubToNSDate	15021	14705	-2.1%	1.02x (?)
ObjectiveCBridgeStubToNSStringRef	106	102	-3.8%	1.04x
ObjectiveCBridgeStubURLAppendPath	229605	223411	-2.7%	1.03x (?)
ObjectiveCBridgeStubURLAppendPathRef	231302	227398	-1.7%	1.02x
ObjectiveCBridgeToNSArray	29607	28236	-4.6%	1.05x
ObjectiveCBridgeToNSSet	39721	37970	-4.4%	1.05x
ObjectiveCBridgeToNSString	1251	1235	-1.3%	1.01x (?)
ObserverClosure	2181	2158	-1.1%	1.01x (?)
ObserverForwarderStruct	1065	1057	-0.8%	1.01x (?)
ObserverPartiallyAppliedMethod	3606	3587	-0.5%	1.01x (?)
ObserverUnappliedMethod	2507	2497	-0.4%	1.00x (?)
OpenClose	48	46	-4.2%	1.04x
Phonebook	5698	5452	-4.3%	1.05x (?)
PolymorphicCalls	21	21	+0.0%	1.00x
PopFrontArray	1209	1165	-3.6%	1.04x
PopFrontArrayGeneric	1241	1187	-4.4%	1.05x
PopFrontUnsafePointer	9343	9031	-3.3%	1.03x (?)
PrefixAnySeqCRangeIter	23052	22380	-2.9%	1.03x
PrefixAnySeqCRangeIterLazy	23248	23061	-0.8%	1.01x (?)
PrefixAnySeqCntRange	50	51	+2.0%	0.98x (?)
PrefixAnySeqCntRangeLazy	49	49	+0.0%	1.00x
PrefixAnySequence	7952	7843	-1.4%	1.01x
PrefixAnySequenceLazy	7927	7843	-1.1%	1.01x (?)
PrefixArray	24	24	+0.0%	1.00x
PrefixArrayLazy	24	23	-4.2%	1.04x
PrefixCountableRange	30	30	+0.0%	1.00x
PrefixCountableRangeLazy	30	30	+0.0%	1.00x
PrefixSequence	1982	1975	-0.4%	1.00x
PrefixSequenceLazy	1943	1924	-1.0%	1.01x
PrefixWhileAnyCollection	91	90	-1.1%	1.01x
PrefixWhileAnyCollectionLazy	72	71	-1.4%	1.01x
PrefixWhileAnySeqCRangeIter	16046	15716	-2.1%	1.02x (?)
PrefixWhileAnySeqCRangeIterLazy	71	71	+0.0%	1.00x
PrefixWhileAnySeqCntRange	87	85	-2.3%	1.02x
PrefixWhileAnySeqCntRangeLazy	72	71	-1.4%	1.01x
PrefixWhileAnySequence	18141	17782	-2.0%	1.02x
PrefixWhileAnySequenceLazy	2066	2060	-0.3%	1.00x (?)
PrefixWhileArray	60	59	-1.7%	1.02x
PrefixWhileArrayLazy	49	47	-4.1%	1.04x
PrefixWhileCountableRange	34	34	+0.0%	1.00x
PrefixWhileCountableRangeLazy	30	30	+0.0%	1.00x
PrefixWhileSequenceLazy	26	26	+0.0%	1.00x
Prims	738	741	+0.4%	1.00x (?)
ProtocolDispatch	2426	2357	-2.8%	1.03x
ProtocolDispatch2	159	154	-3.1%	1.03x
RC4	154	155	+0.6%	0.99x (?)
RGBHistogram	2336	2322	-0.6%	1.01x (?)
RGBHistogramOfObjects	23053	22210	-3.7%	1.04x
RecursiveOwnedParameter	2219	2200	-0.9%	1.01x (?)
ReversedArray	46	48	+4.3%	0.96x
ReversedBidirectional	29192	28984	-0.7%	1.01x
SetExclusiveOr	3192	3135	-1.8%	1.02x
SetExclusiveOr_OfObjects	7897	7861	-0.5%	1.00x (?)
SetIntersect	301	301	+0.0%	1.00x
SetIntersect_OfObjects	1673	1673	+0.0%	1.00x
SetIsSubsetOf	279	276	-1.1%	1.01x (?)
SetIsSubsetOf_OfObjects	342	339	-0.9%	1.01x
SetUnion	2759	2711	-1.7%	1.02x (?)
SetUnion_OfObjects	6536	6439	-1.5%	1.02x
SevenBoom	1463	1420	-2.9%	1.03x
Sim2DArray	283	281	-0.7%	1.01x
SortLargeExistentials	7852	7862	+0.1%	1.00x (?)
SortLettersInPlace	1119	1090	-2.6%	1.03x (?)
SortStrings	1570	1545	-1.6%	1.02x (?)
SortStringsUnicode	7656	7547	-1.4%	1.01x (?)
StackPromo	21408	21573	+0.8%	0.99x (?)
StaticArray	17	17	+0.0%	1.00x
StrComplexWalk	704	675	-4.1%	1.04x
StrToInt	1868	1829	-2.1%	1.02x (?)
StringAdder	3429	3523	+2.7%	0.97x (?)
StringBuilder	1033	991	-4.1%	1.04x (?)
StringBuilderLong	939	935	-0.4%	1.00x
StringEdits	117942	114278	-3.1%	1.03x
StringEqualPointerComparison	328	314	-4.3%	1.04x
StringFromLongWholeSubstring	198	191	-3.5%	1.04x
StringFromLongWholeSubstringGeneric	22	21	-4.5%	1.05x
StringHasPrefix	15	15	+0.0%	1.00x
StringHasPrefixUnicode	14201	13747	-3.2%	1.03x (?)
StringHasSuffix	15	15	+0.0%	1.00x
StringHasSuffixUnicode	61016	58900	-3.5%	1.04x
StringInterpolation	10502	10625	+1.2%	0.99x (?)
StringMatch	7424	7387	-0.5%	1.01x (?)
StringUTF16Builder	1840	1883	+2.3%	0.98x
StringWalk	1254	1258	+0.3%	1.00x (?)
SubstringComparable	1509	1456	-3.5%	1.04x (?)
SubstringEqualString	1426	1369	-4.0%	1.04x
SubstringEquatable	3452	3326	-3.7%	1.04x
SubstringFromLongStringGeneric	61	61	+0.0%	1.00x
SuffixAnyCollection	18	18	+0.0%	1.00x
SuffixAnyCollectionLazy	14666	14503	-1.1%	1.01x
SuffixAnySeqCRangeIter	6045	5951	-1.6%	1.02x
SuffixAnySeqCRangeIterLazy	6074	5950	-2.0%	1.02x
SuffixAnySeqCntRange	10	10	+0.0%	1.00x
SuffixAnySeqCntRangeLazy	10	10	+0.0%	1.00x
SuffixAnySequence	8550	8498	-0.6%	1.01x (?)
SuffixAnySequenceLazy	8301	8147	-1.9%	1.02x
SuffixArrayLazy	8	8	+0.0%	1.00x
SuffixCountableRange	10	10	+0.0%	1.00x
SuffixCountableRangeLazy	10	10	+0.0%	1.00x
SuffixSequence	5584	5554	-0.5%	1.01x
SuffixSequenceLazy	5610	5556	-1.0%	1.01x
SumUsingReduce	96	93	-3.1%	1.03x
SumUsingReduceInto	96	93	-3.1%	1.03x
SuperChars	78142	76673	-1.9%	1.02x (?)
TwoSum	948	929	-2.0%	1.02x
TypeFlood	0	0	+0.0%	1.00x
UTF8Decode	252	243	-3.6%	1.04x
Walsh	373	372	-0.3%	1.00x (?)
accessGlobal	2	2	+0.0%	1.00x
accessInMatSet	18	18	+0.0%	1.00x
accessIndependent	2	2	+0.0%	1.00x

Unoptimized (Onone)

Regression (1)

TEST	OLD	NEW	DELTA	SPEEDUP
ObjectAllocation	1605	1692	+5.4%	0.95x

Improvement (16)

TEST	OLD	NEW	DELTA	SPEEDUP
ArrayOfGenericPOD	1380	1203	-12.8%	1.15x
DictionaryBridge	2809	2552	-9.1%	1.10x
ArrayOfPOD	774	711	-8.1%	1.09x
DropWhileAnyCollection	28360	26168	-7.7%	1.08x
Dictionary3	1382	1278	-7.5%	1.08x
Dictionary3OfObjects	2456	2275	-7.4%	1.08x
CharIteration_korean_unicodeScalars_Backwards	408121	379529	-7.0%	1.08x
CharIteration_korean_unicodeScalars	235451	219719	-6.7%	1.07x
NopDeinit	179071	167164	-6.6%	1.07x
Dictionary2OfObjects	6380	5993	-6.1%	1.06x
Integrate	730	688	-5.8%	1.06x
NSStringConversion	399	377	-5.5%	1.06x
DictionaryGroupOfObjects	9324	8814	-5.5%	1.06x
StringWalk	13014	12322	-5.3%	1.06x
DropWhileAnySequenceLazy	16109	15283	-5.1%	1.05x
DropLastSequenceLazy	32677	31080	-4.9%	1.05x (?)

No Changes (310)

TEST	OLD	NEW	DELTA	SPEEDUP
AngryPhonebook	5511	5361	-2.7%	1.03x
AnyHashableWithAClass	84226	83342	-1.0%	1.01x (?)
Array2D	593498	590135	-0.6%	1.01x (?)
ArrayAppend	4190	4016	-4.2%	1.04x
ArrayAppendArrayOfInt	638	649	+1.7%	0.98x
ArrayAppendAscii	49866	49005	-1.7%	1.02x
ArrayAppendFromGeneric	640	657	+2.7%	0.97x
ArrayAppendGenericStructs	1233	1213	-1.6%	1.02x (?)
ArrayAppendLatin1	71780	69663	-2.9%	1.03x
ArrayAppendLazyMap	293629	283774	-3.4%	1.03x (?)
ArrayAppendOptionals	1239	1224	-1.2%	1.01x
ArrayAppendRepeatCol	231256	225939	-2.3%	1.02x (?)
ArrayAppendReserved	3978	3908	-1.8%	1.02x
ArrayAppendSequence	119205	116330	-2.4%	1.02x (?)
ArrayAppendStrings	13611	13308	-2.2%	1.02x (?)
ArrayAppendToFromGeneric	640	632	-1.2%	1.01x (?)
ArrayAppendToGeneric	633	620	-2.1%	1.02x
ArrayAppendUTF16	73464	71068	-3.3%	1.03x (?)
ArrayInClass	6165	6059	-1.7%	1.02x (?)
ArrayLiteral	1667	1650	-1.0%	1.01x (?)
ArrayOfGenericRef	9592	9427	-1.7%	1.02x
ArrayOfRef	8554	8841	+3.4%	0.97x
ArrayPlusEqualArrayOfInt	622	635	+2.1%	0.98x (?)
ArrayPlusEqualFiveElementCollection	288359	286705	-0.6%	1.01x (?)
ArrayPlusEqualSingleElementCollection	291930	283791	-2.8%	1.03x
ArrayPlusEqualThreeElements	10861	10555	-2.8%	1.03x
ArraySubscript	4101	4072	-0.7%	1.01x
ArrayValueProp	3381	3402	+0.6%	0.99x (?)
ArrayValueProp2	23115	23337	+1.0%	0.99x (?)
ArrayValueProp3	3843	3718	-3.3%	1.03x
ArrayValueProp4	3797	3742	-1.4%	1.01x
BitCount	1677	1695	+1.1%	0.99x (?)
ByteSwap	4049	4014	-0.9%	1.01x (?)
CStringLongAscii	4863	4669	-4.0%	1.04x
CStringLongNonAscii	2292	2324	+1.4%	0.99x (?)
CStringShortAscii	9023	9132	+1.2%	0.99x (?)
Calculator	1171	1177	+0.5%	0.99x (?)
CaptureProp	132783	127674	-3.8%	1.04x
CharIndexing_ascii_unicodeScalars	579576	577358	-0.4%	1.00x (?)
CharIndexing_ascii_unicodeScalars_Backwards	639663	643578	+0.6%	0.99x (?)
CharIndexing_chinese_unicodeScalars	438057	433398	-1.1%	1.01x
CharIndexing_chinese_unicodeScalars_Backwards	490726	479071	-2.4%	1.02x (?)
CharIndexing_japanese_unicodeScalars	683652	683722	+0.0%	1.00x (?)
CharIndexing_japanese_unicodeScalars_Backwards	753289	747511	-0.8%	1.01x (?)
CharIndexing_korean_unicodeScalars	558950	560272	+0.2%	1.00x (?)
CharIndexing_korean_unicodeScalars_Backwards	613531	613005	-0.1%	1.00x (?)
CharIndexing_punctuatedJapanese_unicodeScalars	100745	98973	-1.8%	1.02x (?)
CharIndexing_punctuatedJapanese_unicodeScalars_Backwards	114609	111683	-2.6%	1.03x (?)
CharIndexing_punctuated_unicodeScalars	126818	129566	+2.2%	0.98x
CharIndexing_punctuated_unicodeScalars_Backwards	140335	141771	+1.0%	0.99x (?)
CharIndexing_russian_unicodeScalars	477441	480382	+0.6%	0.99x (?)
CharIndexing_russian_unicodeScalars_Backwards	539727	533637	-1.1%	1.01x
CharIndexing_tweet_unicodeScalars	1149082	1139134	-0.9%	1.01x
CharIndexing_tweet_unicodeScalars_Backwards	1257901	1224367	-2.7%	1.03x (?)
CharIndexing_utf16_unicodeScalars	629516	627584	-0.3%	1.00x (?)
CharIndexing_utf16_unicodeScalars_Backwards	694846	691557	-0.5%	1.00x (?)
CharIteration_ascii_unicodeScalars	234120	224680	-4.0%	1.04x
CharIteration_ascii_unicodeScalars_Backwards	395945	389954	-1.5%	1.02x (?)
CharIteration_chinese_unicodeScalars	168695	166165	-1.5%	1.02x (?)
CharIteration_chinese_unicodeScalars_Backwards	297341	298179	+0.3%	1.00x (?)
CharIteration_japanese_unicodeScalars	265707	264923	-0.3%	1.00x (?)
CharIteration_japanese_unicodeScalars_Backwards	470120	473907	+0.8%	0.99x (?)
CharIteration_punctuatedJapanese_unicodeScalars	41953	40197	-4.2%	1.04x
CharIteration_punctuatedJapanese_unicodeScalars_Backwards	69850	68690	-1.7%	1.02x
CharIteration_punctuated_unicodeScalars	49930	50134	+0.4%	1.00x (?)
CharIteration_punctuated_unicodeScalars_Backwards	87026	86677	-0.4%	1.00x (?)
CharIteration_russian_unicodeScalars	187528	186887	-0.3%	1.00x (?)
CharIteration_russian_unicodeScalars_Backwards	326779	323893	-0.9%	1.01x (?)
CharIteration_tweet_unicodeScalars	435553	432870	-0.6%	1.01x (?)
CharIteration_tweet_unicodeScalars_Backwards	779710	755194	-3.1%	1.03x (?)
CharIteration_utf16_unicodeScalars	237248	244824	+3.2%	0.97x
CharIteration_utf16_unicodeScalars_Backwards	468502	464844	-0.8%	1.01x
CharacterLiteralsLarge	6107	6022	-1.4%	1.01x (?)
CharacterLiteralsSmall	657	636	-3.2%	1.03x
Chars	65157	67007	+2.8%	0.97x
ClassArrayGetter	962	987	+2.6%	0.97x
DeadArray	114512	113372	-1.0%	1.01x (?)
Dictionary	3556	3463	-2.6%	1.03x (?)
Dictionary2	3474	3391	-2.4%	1.02x (?)
DictionaryGroup	5610	5343	-4.8%	1.05x
DictionaryLiteral	8206	8075	-1.6%	1.02x (?)
DictionaryOfObjects	6994	6911	-1.2%	1.01x
DictionaryRemove	21177	21072	-0.5%	1.00x (?)
DictionaryRemoveOfObjects	59636	58123	-2.5%	1.03x
DictionarySwap	5315	5188	-2.4%	1.02x
DictionarySwapOfObjects	23236	23204	-0.1%	1.00x (?)
DropFirstAnyCollection	21145	21206	+0.3%	1.00x (?)
DropFirstAnyCollectionLazy	156447	154914	-1.0%	1.01x
DropFirstAnySeqCRangeIter	31788	31410	-1.2%	1.01x (?)
DropFirstAnySeqCRangeIterLazy	30989	30519	-1.5%	1.02x (?)
DropFirstAnySeqCntRange	21130	21559	+2.0%	0.98x (?)
DropFirstAnySeqCntRangeLazy	21294	21231	-0.3%	1.00x (?)
DropFirstAnySequence	17369	17249	-0.7%	1.01x
DropFirstAnySequenceLazy	17448	16860	-3.4%	1.03x
DropFirstArray	10274	10038	-2.3%	1.02x (?)
DropFirstArrayLazy	52299	50343	-3.7%	1.04x
DropFirstCountableRange	338	336	-0.6%	1.01x (?)
DropFirstCountableRangeLazy	38465	39122	+1.7%	0.98x (?)
DropFirstSequence	15913	15922	+0.1%	1.00x (?)
DropFirstSequenceLazy	15570	15574	+0.0%	1.00x (?)
DropLastAnyCollection	7101	7058	-0.6%	1.01x
DropLastAnyCollectionLazy	51721	49628	-4.0%	1.04x
DropLastAnySeqCRangeIter	47511	48240	+1.5%	0.98x (?)
DropLastAnySeqCRangeIterLazy	47098	48093	+2.1%	0.98x (?)
DropLastAnySeqCntRange	6948	7072	+1.8%	0.98x
DropLastAnySeqCntRangeLazy	7044	7122	+1.1%	0.99x (?)
DropLastAnySequence	32184	32338	+0.5%	1.00x (?)
DropLastAnySequenceLazy	32262	31778	-1.5%	1.02x
DropLastArray	3434	3295	-4.0%	1.04x (?)
DropLastArrayLazy	17457	17240	-1.2%	1.01x
DropLastCountableRange	119	118	-0.8%	1.01x
DropLastCountableRangeLazy	13062	12847	-1.6%	1.02x
DropLastSequence	32848	32889	+0.1%	1.00x (?)
DropWhileAnyCollectionLazy	31496	30318	-3.7%	1.04x (?)
DropWhileAnySeqCRangeIter	33472	33187	-0.9%	1.01x (?)
DropWhileAnySeqCRangeIterLazy	30214	31478	+4.2%	0.96x
DropWhileAnySeqCntRange	26365	26928	+2.1%	0.98x (?)
DropWhileAnySeqCntRangeLazy	30730	30598	-0.4%	1.00x (?)
DropWhileAnySequence	17255	16991	-1.5%	1.02x
DropWhileArray	13456	13699	+1.8%	0.98x (?)
DropWhileArrayLazy	24515	23520	-4.1%	1.04x
DropWhileCountableRange	5952	6031	+1.3%	0.99x
DropWhileCountableRangeLazy	28845	29090	+0.8%	0.99x (?)
DropWhileSequence	16023	16444	+2.6%	0.97x
DropWhileSequenceLazy	13950	14113	+1.2%	0.99x (?)
EqualStringSubstring	662	662	+0.0%	1.00x
EqualSubstringString	670	664	-0.9%	1.01x
EqualSubstringSubstring	786	771	-1.9%	1.02x
EqualSubstringSubstringGenericEquatable	420	415	-1.2%	1.01x
ErrorHandling	7691	7562	-1.7%	1.02x (?)
FilterEvenUsingReduce	4790	4772	-0.4%	1.00x (?)
FilterEvenUsingReduceInto	3024	3002	-0.7%	1.01x (?)
FrequenciesUsingReduce	16421	16114	-1.9%	1.02x (?)
FrequenciesUsingReduceInto	9407	9787	+4.0%	0.96x (?)
Hanoi	18258	18654	+2.2%	0.98x
HashTest	18018	17834	-1.0%	1.01x
Histogram	9754	9796	+0.4%	1.00x (?)
IterateData	12815	12859	+0.3%	1.00x (?)
Join	1706	1686	-1.2%	1.01x (?)
LazilyFilteredArrays	2013537	1992469	-1.0%	1.01x (?)
LazilyFilteredRange	759664	744774	-2.0%	1.02x (?)
LessSubstringSubstring	787	781	-0.8%	1.01x (?)
LessSubstringSubstringGenericComparable	442	436	-1.4%	1.01x
LinkedList	39205	39174	-0.1%	1.00x (?)
MapReduce	42714	42169	-1.3%	1.01x
MapReduceAnyCollection	42543	42530	-0.0%	1.00x (?)
MapReduceAnyCollectionShort	55598	54281	-2.4%	1.02x
MapReduceClass	48296	46834	-3.0%	1.03x
MapReduceClassShort	59743	58607	-1.9%	1.02x
MapReduceLazyCollection	42855	42946	+0.2%	1.00x (?)
MapReduceLazyCollectionShort	54446	54085	-0.7%	1.01x
MapReduceLazySequence	31462	30284	-3.7%	1.04x
MapReduceSequence	48993	50175	+2.4%	0.98x
MapReduceShort	55145	55226	+0.1%	1.00x (?)
MapReduceShortString	321	312	-2.8%	1.03x
MapReduceString	3181	3115	-2.1%	1.02x (?)
Memset	42180	42180	+0.0%	1.00x
MonteCarloE	138887	137875	-0.7%	1.01x (?)
MonteCarloPi	50025	49602	-0.8%	1.01x (?)
NSDictionaryCastToSwift	6313	6427	+1.8%	0.98x (?)
NSError	714	689	-3.5%	1.04x (?)
ObjectiveCBridgeFromNSArrayAnyObject	24411	25033	+2.5%	0.98x (?)
ObjectiveCBridgeFromNSArrayAnyObjectForced	7297	6976	-4.4%	1.05x (?)
ObjectiveCBridgeFromNSArrayAnyObjectToString	40139	40715	+1.4%	0.99x (?)
ObjectiveCBridgeFromNSArrayAnyObjectToStringForced	32997	34201	+3.6%	0.96x (?)
ObjectiveCBridgeFromNSDictionaryAnyObject	122508	122981	+0.4%	1.00x (?)
ObjectiveCBridgeFromNSDictionaryAnyObjectForced	7537	7582	+0.6%	0.99x (?)
ObjectiveCBridgeFromNSDictionaryAnyObjectToString	98767	99588	+0.8%	0.99x (?)
ObjectiveCBridgeFromNSDictionaryAnyObjectToStringForced	104999	105086	+0.1%	1.00x (?)
ObjectiveCBridgeFromNSSetAnyObject	67614	68710	+1.6%	0.98x
ObjectiveCBridgeFromNSSetAnyObjectForced	7435	7579	+1.9%	0.98x (?)
ObjectiveCBridgeFromNSSetAnyObjectToString	72612	71765	-1.2%	1.01x (?)
ObjectiveCBridgeFromNSSetAnyObjectToStringForced	71828	71071	-1.1%	1.01x (?)
ObjectiveCBridgeFromNSString	3820	3852	+0.8%	0.99x (?)
ObjectiveCBridgeFromNSStringForced	2263	2233	-1.3%	1.01x (?)
ObjectiveCBridgeStubDataAppend	3934	3920	-0.4%	1.00x (?)
ObjectiveCBridgeStubDateAccess	1005	1004	-0.1%	1.00x
ObjectiveCBridgeStubDateMutation	515	519	+0.8%	0.99x
ObjectiveCBridgeStubFromArrayOfNSString	25840	25705	-0.5%	1.01x (?)
ObjectiveCBridgeStubFromNSDate	4240	4236	-0.1%	1.00x (?)
ObjectiveCBridgeStubFromNSDateRef	4545	4673	+2.8%	0.97x (?)
ObjectiveCBridgeStubFromNSString	588	579	-1.5%	1.02x
ObjectiveCBridgeStubFromNSStringRef	177	182	+2.8%	0.97x
ObjectiveCBridgeStubNSDataAppend	2823	2770	-1.9%	1.02x (?)
ObjectiveCBridgeStubNSDateMutationRef	15648	15756	+0.7%	0.99x (?)
ObjectiveCBridgeStubNSDateRefAccess	1189	1189	+0.0%	1.00x
ObjectiveCBridgeStubToArrayOfNSString	28401	29833	+5.0%	0.95x
ObjectiveCBridgeStubToNSDate	15314	15143	-1.1%	1.01x (?)
ObjectiveCBridgeStubToNSDateRef	3254	3261	+0.2%	1.00x (?)
ObjectiveCBridgeStubToNSString	1519	1521	+0.1%	1.00x (?)
ObjectiveCBridgeStubToNSStringRef	150	150	+0.0%	1.00x
ObjectiveCBridgeStubURLAppendPath	219666	222691	+1.4%	0.99x (?)
ObjectiveCBridgeStubURLAppendPathRef	231855	225842	-2.6%	1.03x (?)
ObjectiveCBridgeToNSArray	28704	28288	-1.4%	1.01x (?)
ObjectiveCBridgeToNSDictionary	44357	45361	+2.3%	0.98x (?)
ObjectiveCBridgeToNSSet	39770	38687	-2.7%	1.03x
ObjectiveCBridgeToNSString	1288	1264	-1.9%	1.02x (?)
ObserverClosure	7143	7059	-1.2%	1.01x (?)
ObserverForwarderStruct	5206	5281	+1.4%	0.99x
ObserverPartiallyAppliedMethod	8603	8440	-1.9%	1.02x (?)
ObserverUnappliedMethod	8976	8931	-0.5%	1.01x (?)
OpenClose	387	391	+1.0%	0.99x (?)
Phonebook	22082	22917	+3.8%	0.96x
PolymorphicCalls	5380	5320	-1.1%	1.01x (?)
PopFrontArray	9915	9954	+0.4%	1.00x (?)
PopFrontArrayGeneric	8684	8708	+0.3%	1.00x (?)
PopFrontUnsafePointer	97250	99218	+2.0%	0.98x (?)
PrefixAnyCollection	21561	21135	-2.0%	1.02x (?)
PrefixAnyCollectionLazy	149664	152894	+2.2%	0.98x (?)
PrefixAnySeqCRangeIter	24186	24996	+3.3%	0.97x
PrefixAnySeqCRangeIterLazy	24798	24851	+0.2%	1.00x (?)
PrefixAnySeqCntRange	21485	21581	+0.4%	1.00x (?)
PrefixAnySeqCntRangeLazy	20609	21183	+2.8%	0.97x
PrefixAnySequence	13651	13597	-0.4%	1.00x
PrefixAnySequenceLazy	13419	13366	-0.4%	1.00x (?)
PrefixArray	10154	10265	+1.1%	0.99x (?)
PrefixArrayLazy	53363	51163	-4.1%	1.04x
PrefixCountableRange	337	332	-1.5%	1.02x
PrefixCountableRangeLazy	38698	38556	-0.4%	1.00x (?)
PrefixSequence	12768	12583	-1.4%	1.01x
PrefixSequenceLazy	12245	12210	-0.3%	1.00x (?)
PrefixWhileAnyCollection	37069	38186	+3.0%	0.97x
PrefixWhileAnyCollectionLazy	25523	25680	+0.6%	0.99x (?)
PrefixWhileAnySeqCRangeIter	47931	45667	-4.7%	1.05x (?)
PrefixWhileAnySeqCRangeIterLazy	25852	25328	-2.0%	1.02x (?)
PrefixWhileAnySeqCntRange	37840	38136	+0.8%	0.99x
PrefixWhileAnySeqCntRangeLazy	25946	26021	+0.3%	1.00x (?)
PrefixWhileAnySequence	34130	35073	+2.8%	0.97x
PrefixWhileAnySequenceLazy	13990	14168	+1.3%	0.99x (?)
PrefixWhileArray	20746	20092	-3.2%	1.03x (?)
PrefixWhileArrayLazy	23436	22748	-2.9%	1.03x (?)
PrefixWhileCountableRange	16823	17053	+1.4%	0.99x (?)
PrefixWhileCountableRangeLazy	24575	24813	+1.0%	0.99x (?)
PrefixWhileSequence	34744	34506	-0.7%	1.01x (?)
PrefixWhileSequenceLazy	14068	13931	-1.0%	1.01x (?)
Prims	10136	10182	+0.5%	1.00x (?)
ProtocolDispatch	6918	6814	-1.5%	1.02x (?)
ProtocolDispatch2	491	491	+0.0%	1.00x
RC4	18524	18813	+1.6%	0.98x (?)
RGBHistogram	34832	36088	+3.6%	0.97x
RGBHistogramOfObjects	107006	107080	+0.1%	1.00x (?)
RangeAssignment	5664	5530	-2.4%	1.02x
RecursiveOwnedParameter	10555	10819	+2.5%	0.98x
ReversedArray	52037	50436	-3.1%	1.03x
ReversedBidirectional	85098	87347	+2.6%	0.97x (?)
ReversedDictionary	34236	34881	+1.9%	0.98x
SetExclusiveOr	21488	21712	+1.0%	0.99x (?)
SetExclusiveOr_OfObjects	47091	47174	+0.2%	1.00x (?)
SetIntersect	10724	10676	-0.4%	1.00x (?)
SetIntersect_OfObjects	12641	12356	-2.3%	1.02x (?)
SetIsSubsetOf	1641	1647	+0.4%	1.00x (?)
SetIsSubsetOf_OfObjects	1593	1554	-2.4%	1.03x
SetUnion	12882	12351	-4.1%	1.04x
SetUnion_OfObjects	33766	33093	-2.0%	1.02x
SevenBoom	1556	1572	+1.0%	0.99x (?)
Sim2DArray	41938	42762	+2.0%	0.98x (?)
SortLargeExistentials	17286	16948	-2.0%	1.02x (?)
SortLettersInPlace	3068	3147	+2.6%	0.97x (?)
SortSortedStrings	1376	1384	+0.6%	0.99x (?)
SortStrings	2399	2410	+0.5%	1.00x (?)
SortStringsUnicode	8772	8669	-1.2%	1.01x (?)
StackPromo	104335	101866	-2.4%	1.02x (?)
StaticArray	4508	4433	-1.7%	1.02x (?)
StrComplexWalk	6682	6757	+1.1%	0.99x (?)
StrToInt	116802	116086	-0.6%	1.01x (?)
StringAdder	3768	3765	-0.1%	1.00x (?)
StringBuilder	8437	8338	-1.2%	1.01x (?)
StringBuilderLong	1109	1072	-3.3%	1.03x
StringEdits	404723	413222	+2.1%	0.98x
StringEqualPointerComparison	2568	2559	-0.4%	1.00x (?)
StringFromLongWholeSubstring	208	210	+1.0%	0.99x (?)
StringFromLongWholeSubstringGeneric	195	200	+2.6%	0.98x
StringHasPrefix	1700	1749	+2.9%	0.97x
StringHasPrefixUnicode	16071	16204	+0.8%	0.99x (?)
StringHasSuffix	1921	1862	-3.1%	1.03x (?)
StringHasSuffixUnicode	63599	63796	+0.3%	1.00x
StringInterpolation	13940	13821	-0.9%	1.01x (?)
StringMatch	34042	34753	+2.1%	0.98x
StringUTF16Builder	9559	9215	-3.6%	1.04x
StringWithCString	57978	57338	-1.1%	1.01x (?)
SubstringComparable	4662	4659	-0.1%	1.00x (?)
SubstringEqualString	6441	6421	-0.3%	1.00x (?)
SubstringEquatable	9177	9404	+2.5%	0.98x
SubstringFromLongString	12	12	+0.0%	1.00x
SubstringFromLongStringGeneric	109	110	+0.9%	0.99x
SuffixAnyCollection	6901	6936	+0.5%	0.99x (?)
SuffixAnyCollectionLazy	50512	51329	+1.6%	0.98x
SuffixAnySeqCRangeIter	44603	45778	+2.6%	0.97x (?)
SuffixAnySeqCRangeIterLazy	43902	43924	+0.1%	1.00x (?)
SuffixAnySeqCntRange	6910	6930	+0.3%	1.00x (?)
SuffixAnySeqCntRangeLazy	7032	7051	+0.3%	1.00x
SuffixAnySequence	29289	29274	-0.1%	1.00x (?)
SuffixAnySequenceLazy	29272	29111	-0.6%	1.01x
SuffixArray	3419	3329	-2.6%	1.03x
SuffixArrayLazy	17122	16886	-1.4%	1.01x (?)
SuffixCountableRange	117	117	+0.0%	1.00x
SuffixCountableRangeLazy	12900	12849	-0.4%	1.00x (?)
SuffixSequence	29681	29580	-0.3%	1.00x (?)
SuffixSequenceLazy	28793	28722	-0.2%	1.00x (?)
SumUsingReduce	298659	299780	+0.4%	1.00x (?)
SumUsingReduceInto	277141	277470	+0.1%	1.00x (?)
SuperChars	208489	216699	+3.9%	0.96x
TwoSum	4218	4123	-2.3%	1.02x
TypeFlood	165	172	+4.2%	0.96x
UTF8Decode	46519	46652	+0.3%	1.00x (?)
Walsh	11350	11348	-0.0%	1.00x (?)
XorLoop	22665	22661	-0.0%	1.00x (?)
accessGlobal	177	169	-4.5%	1.05x
accessInMatSet	333	327	-1.8%	1.02x (?)
accessIndependent	124	124	+0.0%	1.00x

Hardware Overview

  Model Name: Mac mini
  Model Identifier: Macmini7,1
  Processor Name: Intel Core i7
  Processor Speed: 3 GHz
  Number of Processors: 1
  Total Number of Cores: 2
  L2 Cache (per Core): 256 KB
  L3 Cache: 4 MB
  Memory: 16 GB

swiftix · 2017-08-03T05:09:42Z

@swift-ci please benchmark

swift-ci · 2017-08-03T09:26:53Z

Build comment file:

Build failed before running benchmark.

Give Array types a custom Iterator

3f4f482

swiftix mentioned this pull request Aug 2, 2017

Modify the optimization pipeline to better support custom array iterators #11303

Merged

airspeedswift closed this Sep 6, 2018

airspeedswift reopened this Sep 25, 2018

airspeedswift closed this Sep 25, 2018

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[stdlib][WIP perf experiment] Give Array types a custom Iterator #9145

[stdlib][WIP perf experiment] Give Array types a custom Iterator #9145

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[stdlib][WIP perf experiment] Give Array types a custom Iterator #9145

[stdlib][WIP perf experiment] Give Array types a custom Iterator #9145

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airspeedswift commented May 1, 2017

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Optimized (O)

Unoptimized (Onone)

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