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[stdlib] Uninline Existential Collections #17492

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airspeedswift
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Similar to #17476 but for AnySequence and friends. Many of these should be unnecessary since they're internal types/methods. Removing them all might hurt performance but lets start with this and add some back in where appropriate.

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@swift-ci please smoke benchmark

slavapestov
slavapestov reviewed Jun 25, 2018
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stdlib/public/core/ExistentialCollection.swift.gyb
@@ -672,22 +570,19 @@ extension _ClosureBasedSequence: Sequence {
/// An instance of `AnySequence` forwards its operations to an underlying base
/// sequence having the same `Element` type, hiding the specifics of the
/// underlying sequence.
//@usableFromInline
//
@_fixed_layout
public struct AnySequence<Element> {
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I'd be curious about the benchmark results for un-fixed-layout'ing these, in a separate PR

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@swift-ci please smoke test compiler performance

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@swift-ci please test

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Build comment file:

Summary for master smoketest

Unexpected test results, excluded stats for ReactiveCocoa

No regressions above thresholds

Debug

debug brief

Regressed (0)
name old new delta delta_pct
Improved (0)
name old new delta delta_pct
Unchanged (delta < 1.0% or delta < 100.0ms) (2)
name old new delta delta_pct
LLVM.NumLLVMBytesOutput 36,216,164 36,216,284 120 0.0%
time.swift-driver.wall 70.6s 70.7s 81.1ms 0.11%

debug detailed

Regressed (0)
name old new delta delta_pct
Improved (0)
name old new delta delta_pct
Unchanged (delta < 1.0% or delta < 100.0ms) (23)
name old new delta delta_pct
AST.NumImportedExternalDefinitions 82,886 82,886 0 0.0%
AST.NumLoadedModules 12,485 12,485 0 0.0%
AST.NumTotalClangImportedEntities 253,787 253,787 0 0.0%
AST.NumUsedConformances 8,754 8,754 0 0.0%
IRModule.NumIRBasicBlocks 127,546 127,546 0 0.0%
IRModule.NumIRFunctions 75,825 75,825 0 0.0%
IRModule.NumIRGlobals 69,290 69,290 0 0.0%
IRModule.NumIRInsts 1,426,155 1,426,155 0 0.0%
IRModule.NumIRValueSymbols 129,827 129,827 0 0.0%
LLVM.NumLLVMBytesOutput 36,216,164 36,216,284 120 0.0%
SILModule.NumSILGenFunctions 44,348 44,348 0 0.0%
SILModule.NumSILOptFunctions 47,339 47,339 0 0.0%
Sema.NumConformancesDeserialized 351,370 351,370 0 0.0%
Sema.NumConstraintScopes 893,629 893,629 0 0.0%
Sema.NumDeclsDeserialized 2,068,712 2,068,712 0 0.0%
Sema.NumDeclsValidated 188,816 188,816 0 0.0%
Sema.NumFunctionsTypechecked 47,175 47,175 0 0.0%
Sema.NumGenericSignatureBuilders 80,123 80,123 0 0.0%
Sema.NumLazyGenericEnvironments 415,196 415,196 0 0.0%
Sema.NumLazyGenericEnvironmentsLoaded 37,995 37,995 0 0.0%
Sema.NumLazyIterableDeclContexts 330,717 330,717 0 0.0%
Sema.NumTypesDeserialized 2,285,785 2,285,785 0 0.0%
Sema.NumTypesValidated 160,444 160,444 0 0.0%

Release

release brief

Regressed (0)
name old new delta delta_pct
Improved (0)
name old new delta delta_pct
Unchanged (delta < 1.0% or delta < 100.0ms) (2)
name old new delta delta_pct
LLVM.NumLLVMBytesOutput 26,664,564 26,663,580 -984 -0.0%
time.swift-driver.wall 140.3s 140.3s 16.5ms 0.01%

release detailed

Regressed (0)
name old new delta delta_pct
Improved (0)
name old new delta delta_pct
Unchanged (delta < 1.0% or delta < 100.0ms) (23)
name old new delta delta_pct
AST.NumImportedExternalDefinitions 8,857 8,857 0 0.0%
AST.NumLoadedModules 408 408 0 0.0%
AST.NumTotalClangImportedEntities 25,770 25,770 0 0.0%
AST.NumUsedConformances 8,760 8,760 0 0.0%
IRModule.NumIRBasicBlocks 148,649 148,636 -13 -0.01%
IRModule.NumIRFunctions 56,673 56,668 -5 -0.01%
IRModule.NumIRGlobals 54,037 54,033 -4 -0.01%
IRModule.NumIRInsts 1,220,647 1,220,568 -79 -0.01%
IRModule.NumIRValueSymbols 101,453 101,444 -9 -0.01%
LLVM.NumLLVMBytesOutput 26,664,564 26,663,580 -984 -0.0%
SILModule.NumSILGenFunctions 22,181 22,181 0 0.0%
SILModule.NumSILOptFunctions 35,901 35,617 -284 -0.79%
Sema.NumConformancesDeserialized 86,023 85,682 -341 -0.4%
Sema.NumConstraintScopes 793,754 793,754 0 0.0%
Sema.NumDeclsDeserialized 205,103 204,225 -878 -0.43%
Sema.NumDeclsValidated 59,866 59,866 0 0.0%
Sema.NumFunctionsTypechecked 10,716 10,716 0 0.0%
Sema.NumGenericSignatureBuilders 9,750 9,745 -5 -0.05%
Sema.NumLazyGenericEnvironments 32,279 32,156 -123 -0.38%
Sema.NumLazyGenericEnvironmentsLoaded 4,556 4,553 -3 -0.07%
Sema.NumLazyIterableDeclContexts 20,590 20,543 -47 -0.23%
Sema.NumTypesDeserialized 268,868 266,650 -2,218 -0.82%
Sema.NumTypesValidated 33,026 33,026 0 0.0%

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Build comment file:

Optimized (O)

Regression (72)
TEST OLD NEW DELTA SPEEDUP
PrefixAnySeqCRangeIter 40 18951 +47276.3% 0.00x
PrefixAnySeqCRangeIterLazy 40 18922 +47203.8% 0.00x
DropLastAnySeqCntRange 11 5203 +47195.7% 0.00x
DropLastAnySeqCntRangeLazy 11 5195 +47123.0% 0.00x
DropWhileAnySeqCRangeIter 76 24609 +32279.8% 0.00x
SuffixAnySeqCntRangeLazy 17 5204 +30510.0% 0.00x
SuffixAnySeqCntRange 17 5201 +30492.3% 0.00x
DropFirstAnySeqCRangeIter 93 23863 +25558.9% 0.00x
DropFirstAnySeqCRangeIterLazy 93 23831 +25524.5% 0.00x
DropFirstAnySeqCntRange 71 15568 +21826.5% 0.00x
PrefixAnySeqCntRange 71 15559 +21813.8% 0.00x
DropFirstAnySeqCntRangeLazy 71 15557 +21811.0% 0.00x
PrefixAnySeqCntRangeLazy 71 15550 +21801.1% 0.00x
DropWhileAnySeqCntRange 95 20050 +21005.0% 0.00x
PrefixWhileAnyCollectionLazy 71 14833 +20791.3% 0.00x
PrefixWhileAnySeqCntRangeLazy 71 14819 +20771.5% 0.00x
PrefixWhileAnySeqCntRange 142 28977 +20306.2% 0.00x
DropFirstAnyCollection 76 15508 +20305.0% 0.00x
PrefixAnyCollection 76 15499 +20293.2% 0.00x
DropWhileAnyCollection 100 19905 +19804.8% 0.01x
PrefixWhileAnyCollection 147 28772 +19472.7% 0.01x
DropLastAnyCollection 28 5192 +18442.2% 0.01x
SuffixAnyCollection 28 5183 +18410.1% 0.01x
PrefixWhileAnySeqCRangeIterLazy 89 14819 +16550.4% 0.01x
DropWhileAnySeqCntRangeLazy 130 19800 +15130.7% 0.01x
DropWhileAnyCollectionLazy 130 19762 +15101.4% 0.01x
DropWhileAnySeqCRangeIterLazy 130 19746 +15089.1% 0.01x
PrefixWhileAnySeqCRangeIter 397 33011 +8215.1% 0.01x
PrefixWhileSequence 373 9732 +2509.1% 0.04x
MapReduceAnyCollection 428 8119 +1797.0% 0.05x
PrefixWhileAnySequence 1535 20253 +1219.4% 0.08x
DropLastAnySeqCRangeIter 3307 39457 +1093.1% 0.08x
DropLastAnySeqCRangeIterLazy 3315 39506 +1091.7% 0.08x
SuffixAnySeqCRangeIter 3617 36047 +896.6% 0.10x
SuffixAnySeqCRangeIterLazy 3631 36018 +892.0% 0.10x
MapReduceAnyCollectionShort 2083 11659 +459.7% 0.18x
DropLastSequenceLazy 688 3753 +445.5% 0.18x
DropLastSequence 687 3747 +445.4% 0.18x
DropLastAnySequence 4980 22671 +355.2% 0.22x
DropLastAnySequenceLazy 5072 22780 +349.1% 0.22x
PrefixAnySequenceLazy 1378 5758 +317.9% 0.24x
PrefixAnySequence 1378 5719 +315.0% 0.24x
SuffixAnySequence 4921 19044 +287.0% 0.26x
DropWhileAnySequence 1862 7184 +285.8% 0.26x
SuffixAnySequenceLazy 5036 19102 +279.3% 0.26x
DropFirstAnySequenceLazy 1842 6527 +254.3% 0.28x
DropFirstAnySequence 1843 6530 +254.3% 0.28x
PrefixSequence 2220 5347 +140.9% 0.42x
PrefixSequenceLazy 2275 5396 +137.2% 0.42x
ReversedBidirectional 16932 39405 +132.7% 0.43x
DropWhileSequence 2472 5589 +126.1% 0.44x
DropFirstSequence 2683 6052 +125.6% 0.44x
DropFirstSequenceLazy 2774 6127 +120.9% 0.45x
DropWhileAnySequenceLazy 1854 3224 +73.9% 0.58x
PrefixWhileAnySequenceLazy 1391 2417 +73.8% 0.58x
DataAppendDataSmallToLarge 38392 65661 +71.0% 0.58x (?)
COWTree 3879 5212 +34.4% 0.74x
SuffixAnyCollectionLazy 21487 24293 +13.1% 0.88x
ObjectiveCBridgeFromNSDictionaryAnyObject 108740 121866 +12.1% 0.89x
MapReduceLazyCollectionShort 34 38 +11.8% 0.89x
PointerArithmetics 31490 34367 +9.1% 0.92x
Calculator 191 206 +7.9% 0.93x
SortStringsUnicode 2522 2716 +7.7% 0.93x
SubstringComparable 13 14 +7.7% 0.93x
PrefixAnyCollectionLazy 64669 69505 +7.5% 0.93x
DropLastAnyCollectionLazy 21682 23148 +6.8% 0.94x
Hanoi 2103 2243 +6.7% 0.94x
RomanNumbers 81144 86345 +6.4% 0.94x
StringWordBuilderReservingCapacity 1768 1869 +5.7% 0.95x
StringUTF16SubstringBuilder 5740 6066 +5.7% 0.95x
Join 169 178 +5.3% 0.95x
ObjectiveCBridgeToNSDictionary 27849 29315 +5.3% 0.95x (?)
Improvement (19)
TEST OLD NEW DELTA SPEEDUP
Sim2DArray 599 417 -30.4% 1.44x
LuhnAlgoLazy 452 330 -27.0% 1.37x
LuhnAlgoEager 450 332 -26.2% 1.36x
StringBuilderWithLongSubstring 1886 1450 -23.1% 1.30x (?)
MapReduce 427 370 -13.3% 1.15x
ChainedFilterMap 1409 1249 -11.4% 1.13x
ObjectiveCBridgeFromNSString 1272 1155 -9.2% 1.10x
DropLastCountableRange 12 11 -8.3% 1.09x
LazilyFilteredArrayContains 38663 35471 -8.3% 1.09x
DataCopyBytes 478 440 -7.9% 1.09x (?)
NopDeinit 32366 30164 -6.8% 1.07x
SetIsSubsetOf 388 363 -6.4% 1.07x
ObjectiveCBridgeFromNSSetAnyObjectForced 5262 4923 -6.4% 1.07x (?)
UTF8Decode_InitFromData_ascii 716 671 -6.3% 1.07x (?)
ObjectiveCBridgeStubURLAppendPathRef 294620 276965 -6.0% 1.06x
ObjectiveCBridgeStubFromArrayOfNSString 34732 32762 -5.7% 1.06x (?)
Integrate 354 334 -5.6% 1.06x
DataMutateBytes 4128 3919 -5.1% 1.05x
StringWithCString 45125 42966 -4.8% 1.05x
No Changes (355)
TEST OLD NEW DELTA SPEEDUP
AngryPhonebook 3623 3770 +4.1% 0.96x (?)
AnyHashableWithAClass 86205 87886 +2.0% 0.98x
Array2D 2854 2855 +0.0% 1.00x (?)
ArrayAppend 1109 1085 -2.2% 1.02x
ArrayAppendArrayOfInt 799 796 -0.4% 1.00x (?)
ArrayAppendAscii 3955 3989 +0.9% 0.99x (?)
ArrayAppendAsciiSubstring 24957 25120 +0.7% 0.99x
ArrayAppendFromGeneric 806 804 -0.2% 1.00x (?)
ArrayAppendGenericStructs 1431 1432 +0.1% 1.00x (?)
ArrayAppendLatin1 41571 41674 +0.2% 1.00x
ArrayAppendLatin1Substring 142371 143951 +1.1% 0.99x
ArrayAppendLazyMap 1344 1342 -0.1% 1.00x (?)
ArrayAppendOptionals 1429 1421 -0.6% 1.01x (?)
ArrayAppendRepeatCol 1340 1341 +0.1% 1.00x (?)
ArrayAppendReserved 841 816 -3.0% 1.03x
ArrayAppendSequence 1124 1126 +0.2% 1.00x (?)
ArrayAppendStrings 6336 6212 -2.0% 1.02x
ArrayAppendToFromGeneric 797 802 +0.6% 0.99x (?)
ArrayAppendToGeneric 790 801 +1.4% 0.99x (?)
ArrayAppendUTF16 41197 41107 -0.2% 1.00x (?)
ArrayAppendUTF16Substring 140150 142247 +1.5% 0.99x (?)
ArrayInClass 86 86 +0.0% 1.00x
ArrayLiteral 0 0 +0.0% 1.00x
ArrayOfGenericPOD2 151 151 +0.0% 1.00x
ArrayOfGenericRef 4414 4412 -0.0% 1.00x (?)
ArrayOfPOD 183 184 +0.5% 0.99x (?)
ArrayOfRef 4398 4377 -0.5% 1.00x (?)
ArrayPlusEqualArrayOfInt 806 785 -2.6% 1.03x
ArrayPlusEqualFiveElementCollection 5605 5446 -2.8% 1.03x
ArrayPlusEqualSingleElementCollection 1110 1081 -2.6% 1.03x
ArrayPlusEqualThreeElements 1663 1647 -1.0% 1.01x
ArraySubscript 1532 1542 +0.7% 0.99x (?)
ArrayValueProp 8 8 +0.0% 1.00x
ArrayValueProp2 8 8 +0.0% 1.00x
ArrayValueProp3 8 8 +0.0% 1.00x
ArrayValueProp4 8 8 +0.0% 1.00x
BinaryFloatingPointPropertiesBinade 25 25 +0.0% 1.00x
BinaryFloatingPointPropertiesNextUp 28 28 +0.0% 1.00x
BinaryFloatingPointPropertiesUlp 35 35 +0.0% 1.00x
BitCount 202 202 +0.0% 1.00x
ByteSwap 104 104 +0.0% 1.00x
COWArrayGuaranteedParameterOverhead 8724 8732 +0.1% 1.00x (?)
CSVParsing 656522 655056 -0.2% 1.00x (?)
CSVParsingAlt 807334 813221 +0.7% 0.99x (?)
CSVParsingAltIndices 334140 343527 +2.8% 0.97x
CStringLongAscii 4127 4037 -2.2% 1.02x
CStringLongNonAscii 2315 2371 +2.4% 0.98x
CStringShortAscii 3335 3328 -0.2% 1.00x (?)
CaptureProp 4114 4094 -0.5% 1.00x (?)
CharIndexing_ascii_unicodeScalars 16966 16301 -3.9% 1.04x
CharIndexing_ascii_unicodeScalars_Backwards 16021 15889 -0.8% 1.01x
CharIndexing_chinese_unicodeScalars 12858 12338 -4.0% 1.04x
CharIndexing_chinese_unicodeScalars_Backwards 12138 12109 -0.2% 1.00x
CharIndexing_japanese_unicodeScalars 20307 19502 -4.0% 1.04x
CharIndexing_japanese_unicodeScalars_Backwards 19165 19109 -0.3% 1.00x
CharIndexing_korean_unicodeScalars 16444 15802 -3.9% 1.04x
CharIndexing_korean_unicodeScalars_Backwards 15525 15405 -0.8% 1.01x
CharIndexing_punctuatedJapanese_unicodeScalars 3070 2962 -3.5% 1.04x
CharIndexing_punctuatedJapanese_unicodeScalars_Backwards 2912 2909 -0.1% 1.00x
CharIndexing_punctuated_unicodeScalars 3841 3699 -3.7% 1.04x
CharIndexing_punctuated_unicodeScalars_Backwards 3617 3633 +0.4% 1.00x
CharIndexing_russian_unicodeScalars 14135 13575 -4.0% 1.04x
CharIndexing_russian_unicodeScalars_Backwards 13359 13256 -0.8% 1.01x
CharIndexing_tweet_unicodeScalars 32743 32130 -1.9% 1.02x
CharIndexing_tweet_unicodeScalars_Backwards 31224 31689 +1.5% 0.99x
CharIndexing_utf16_unicodeScalars 22989 22887 -0.4% 1.00x
CharIndexing_utf16_unicodeScalars_Backwards 23283 23259 -0.1% 1.00x (?)
CharIteration_ascii_unicodeScalars 21106 20468 -3.0% 1.03x
CharIteration_ascii_unicodeScalars_Backwards 15144 15102 -0.3% 1.00x (?)
CharIteration_chinese_unicodeScalars 15992 15483 -3.2% 1.03x
CharIteration_chinese_unicodeScalars_Backwards 11473 11437 -0.3% 1.00x
CharIteration_japanese_unicodeScalars 25299 24499 -3.2% 1.03x
CharIteration_japanese_unicodeScalars_Backwards 18138 18096 -0.2% 1.00x
CharIteration_korean_unicodeScalars 20461 19831 -3.1% 1.03x
CharIteration_korean_unicodeScalars_Backwards 14695 14656 -0.3% 1.00x (?)
CharIteration_punctuatedJapanese_unicodeScalars 3769 3651 -3.1% 1.03x
CharIteration_punctuatedJapanese_unicodeScalars_Backwards 2747 2736 -0.4% 1.00x
CharIteration_punctuated_unicodeScalars 4734 4593 -3.0% 1.03x
CharIteration_punctuated_unicodeScalars_Backwards 3436 3422 -0.4% 1.00x
CharIteration_russian_unicodeScalars 17590 17025 -3.2% 1.03x
CharIteration_russian_unicodeScalars_Backwards 12622 12591 -0.2% 1.00x
CharIteration_tweet_unicodeScalars 42355 40391 -4.6% 1.05x
CharIteration_tweet_unicodeScalars_Backwards 29981 29835 -0.5% 1.00x
CharIteration_utf16_unicodeScalars 28001 27707 -1.0% 1.01x
CharIteration_utf16_unicodeScalars_Backwards 18304 18581 +1.5% 0.99x
CharacterLiteralsLarge 5964 5937 -0.5% 1.00x (?)
CharacterLiteralsSmall 217 220 +1.4% 0.99x
CharacterPropertiesFetch 4687 4661 -0.6% 1.01x (?)
CharacterPropertiesPrecomputed 1044 1040 -0.4% 1.00x (?)
CharacterPropertiesStashed 1520 1510 -0.7% 1.01x (?)
CharacterPropertiesStashedMemo 1606 1591 -0.9% 1.01x (?)
Chars 1022 1017 -0.5% 1.00x
ClassArrayGetter 15 15 +0.0% 1.00x
Combos 495 489 -1.2% 1.01x
DataAccessBytes 1142 1141 -0.1% 1.00x (?)
DataAppendArray 5350 5466 +2.2% 0.98x
DataAppendBytes 4951 5001 +1.0% 0.99x (?)
DataAppendDataLargeToLarge 68176 68052 -0.2% 1.00x (?)
DataAppendDataLargeToMedium 35132 35385 +0.7% 0.99x (?)
DataAppendDataLargeToSmall 34546 34405 -0.4% 1.00x (?)
DataAppendDataMediumToLarge 37288 38217 +2.5% 0.98x (?)
DataAppendDataMediumToMedium 6717 6620 -1.4% 1.01x (?)
DataAppendDataMediumToSmall 5993 6015 +0.4% 1.00x (?)
DataAppendDataSmallToMedium 5950 6186 +4.0% 0.96x
DataAppendDataSmallToSmall 5802 6038 +4.1% 0.96x (?)
DataAppendSequence 21133 21513 +1.8% 0.98x (?)
DataCount 34 34 +0.0% 1.00x
DataReplaceLarge 37407 36692 -1.9% 1.02x (?)
DataReplaceLargeBuffer 56936 56580 -0.6% 1.01x (?)
DataReplaceMedium 7676 7958 +3.7% 0.96x (?)
DataReplaceMediumBuffer 11631 11121 -4.4% 1.05x (?)
DataReplaceSmall 5726 5511 -3.8% 1.04x (?)
DataReplaceSmallBuffer 8353 8643 +3.5% 0.97x (?)
DataReset 2887 2853 -1.2% 1.01x (?)
DataSetCount 563 560 -0.5% 1.01x (?)
DataSubscript 220 220 +0.0% 1.00x
DictOfArraysToArrayOfDicts 776 775 -0.1% 1.00x (?)
Dictionary 510 515 +1.0% 0.99x
Dictionary2 638 638 +0.0% 1.00x
Dictionary2OfObjects 2083 2082 -0.0% 1.00x (?)
Dictionary3 226 221 -2.2% 1.02x
Dictionary3OfObjects 741 737 -0.5% 1.01x
Dictionary4 344 342 -0.6% 1.01x
Dictionary4Legacy 744 739 -0.7% 1.01x (?)
Dictionary4OfObjects 454 460 +1.3% 0.99x
Dictionary4OfObjectsLegacy 966 961 -0.5% 1.01x (?)
DictionaryBridge 1227 1190 -3.0% 1.03x (?)
DictionaryCopy 107156 107177 +0.0% 1.00x (?)
DictionaryFilter 106302 106739 +0.4% 1.00x (?)
DictionaryGroup 215 215 +0.0% 1.00x
DictionaryGroupOfObjects 2149 2123 -1.2% 1.01x
DictionaryKeysContainsCocoa 39 41 +5.1% 0.95x
DictionaryKeysContainsNative 32 32 +0.0% 1.00x
DictionaryLiteral 1917 1890 -1.4% 1.01x (?)
DictionaryOfObjects 2378 2372 -0.3% 1.00x (?)
DictionaryRemove 4190 4173 -0.4% 1.00x (?)
DictionaryRemoveOfObjects 26038 25916 -0.5% 1.00x
DictionarySubscriptDefaultMutation 267 266 -0.4% 1.00x (?)
DictionarySubscriptDefaultMutationArray 606 607 +0.2% 1.00x (?)
DictionarySubscriptDefaultMutationArrayOfObjects 4025 4032 +0.2% 1.00x (?)
DictionarySubscriptDefaultMutationOfObjects 1720 1703 -1.0% 1.01x
DictionarySwap 1083 1083 +0.0% 1.00x
DictionarySwapAt 7012 6754 -3.7% 1.04x
DictionarySwapAtOfObjects 54539 52434 -3.9% 1.04x
DictionarySwapOfObjects 8835 8840 +0.1% 1.00x (?)
DoubleWidthDivision 0 0 +0.0% 1.00x
DropFirstAnyCollectionLazy 64947 67122 +3.3% 0.97x (?)
DropFirstArray 35 35 +0.0% 1.00x
DropFirstArrayLazy 35 35 +0.0% 1.00x
DropFirstCountableRange 35 35 +0.0% 1.00x
DropFirstCountableRangeLazy 35 35 +0.0% 1.00x
DropLastCountableRangeLazy 11 11 +0.0% 1.00x
DropWhileArrayLazy 88 88 +0.0% 1.00x
DropWhileCountableRange 36 36 +0.0% 1.00x
DropWhileCountableRangeLazy 105 105 +0.0% 1.00x
DropWhileSequenceLazy 88 88 +0.0% 1.00x
EqualStringSubstring 53 51 -3.8% 1.04x
EqualSubstringString 53 51 -3.8% 1.04x
EqualSubstringSubstring 52 50 -3.8% 1.04x
EqualSubstringSubstringGenericEquatable 52 50 -3.8% 1.04x
ErrorHandling 1197 1193 -0.3% 1.00x (?)
ExclusivityGlobal 5 5 +0.0% 1.00x
ExclusivityIndependent 2 2 +0.0% 1.00x
FatCompactMap 200372 199901 -0.2% 1.00x
FilterEvenUsingReduce 1310 1317 +0.5% 0.99x (?)
FilterEvenUsingReduceInto 148 149 +0.7% 0.99x (?)
FloatingPointPrinting_Double_description_small 21704 21597 -0.5% 1.00x (?)
FloatingPointPrinting_Double_description_uniform 21090 21134 +0.2% 1.00x (?)
FloatingPointPrinting_Double_interpolated 62417 62170 -0.4% 1.00x (?)
FloatingPointPrinting_Float80_description_small 28599 28518 -0.3% 1.00x (?)
FloatingPointPrinting_Float80_description_uniform 27624 27667 +0.2% 1.00x (?)
FloatingPointPrinting_Float80_interpolated 65079 64906 -0.3% 1.00x (?)
FloatingPointPrinting_Float_description_small 5570 5444 -2.3% 1.02x
FloatingPointPrinting_Float_description_uniform 5344 5437 +1.7% 0.98x
FloatingPointPrinting_Float_interpolated 38553 38859 +0.8% 0.99x
FrequenciesUsingReduce 4880 4965 +1.7% 0.98x
FrequenciesUsingReduceInto 1485 1494 +0.6% 0.99x (?)
HashTest 936 953 +1.8% 0.98x
Histogram 695 698 +0.4% 1.00x
IterateData 1552 1500 -3.4% 1.03x
LazilyFilteredArrays 67202 64819 -3.5% 1.04x (?)
LazilyFilteredRange 3685 3871 +5.0% 0.95x
LessSubstringSubstring 53 51 -3.8% 1.04x
LessSubstringSubstringGenericComparable 53 51 -3.8% 1.04x
LinkedList 7537 7521 -0.2% 1.00x
MapReduceClass 3008 3006 -0.1% 1.00x (?)
MapReduceClassShort 4567 4556 -0.2% 1.00x (?)
MapReduceLazyCollection 13 13 +0.0% 1.00x
MapReduceLazySequence 86 86 +0.0% 1.00x
MapReduceSequence 457 462 +1.1% 0.99x (?)
MapReduceShort 2039 1996 -2.1% 1.02x
MapReduceShortString 20 20 +0.0% 1.00x
MapReduceString 50 48 -4.0% 1.04x
Memset 214 213 -0.5% 1.00x (?)
MonteCarloE 10254 10241 -0.1% 1.00x (?)
MonteCarloPi 42648 42688 +0.1% 1.00x (?)
NSDictionaryCastToSwift 7153 7045 -1.5% 1.02x (?)
NSError 164 163 -0.6% 1.01x
NSStringConversion 704 690 -2.0% 1.02x
NibbleSort 3665 3700 +1.0% 0.99x
ObjectAllocation 133 134 +0.8% 0.99x
ObjectiveCBridgeFromNSArrayAnyObject 25162 25545 +1.5% 0.99x (?)
ObjectiveCBridgeFromNSArrayAnyObjectForced 5212 5105 -2.1% 1.02x (?)
ObjectiveCBridgeFromNSArrayAnyObjectToString 46962 44876 -4.4% 1.05x (?)
ObjectiveCBridgeFromNSArrayAnyObjectToStringForced 44032 42881 -2.6% 1.03x (?)
ObjectiveCBridgeFromNSSetAnyObject 49768 50490 +1.5% 0.99x (?)
ObjectiveCBridgeFromNSSetAnyObjectToString 68786 66642 -3.1% 1.03x (?)
ObjectiveCBridgeFromNSStringForced 2734 2675 -2.2% 1.02x (?)
ObjectiveCBridgeStubDataAppend 6474 6198 -4.3% 1.04x
ObjectiveCBridgeStubDateMutation 401 400 -0.2% 1.00x
ObjectiveCBridgeStubFromNSDate 6184 6306 +2.0% 0.98x (?)
ObjectiveCBridgeStubFromNSString 1039 1006 -3.2% 1.03x
ObjectiveCBridgeStubFromNSStringRef 156 158 +1.3% 0.99x
ObjectiveCBridgeStubNSDataAppend 2578 2664 +3.3% 0.97x (?)
ObjectiveCBridgeStubNSDateMutationRef 13243 13365 +0.9% 0.99x (?)
ObjectiveCBridgeStubToArrayOfNSString 39732 40096 +0.9% 0.99x (?)
ObjectiveCBridgeStubToNSDate 15846 15490 -2.2% 1.02x (?)
ObjectiveCBridgeStubToNSDateRef 3420 3463 +1.3% 0.99x (?)
ObjectiveCBridgeStubToNSString 2352 2357 +0.2% 1.00x (?)
ObjectiveCBridgeStubToNSStringRef 113 115 +1.8% 0.98x
ObjectiveCBridgeStubURLAppendPath 286917 280458 -2.3% 1.02x (?)
ObjectiveCBridgeToNSArray 15209 15175 -0.2% 1.00x (?)
ObjectiveCBridgeToNSSet 17999 17809 -1.1% 1.01x (?)
ObjectiveCBridgeToNSString 458 452 -1.3% 1.01x
ObserverClosure 2181 2172 -0.4% 1.00x
ObserverForwarderStruct 1217 1228 +0.9% 0.99x
ObserverPartiallyAppliedMethod 3720 3734 +0.4% 1.00x (?)
ObserverUnappliedMethod 2474 2481 +0.3% 1.00x (?)
OpaqueConsumingUsers 4178 4177 -0.0% 1.00x (?)
OpenClose 62 65 +4.8% 0.95x
PartialApplyDynamicType 0 0 +0.0% 1.00x
Phonebook 6627 6850 +3.4% 0.97x
PolymorphicCalls 25 25 +0.0% 1.00x
PopFrontArray 1961 1976 +0.8% 0.99x (?)
PopFrontArrayGeneric 1976 1904 -3.6% 1.04x (?)
PopFrontUnsafePointer 9544 9499 -0.5% 1.00x (?)
PrefixArray 35 35 +0.0% 1.00x
PrefixArrayLazy 35 35 +0.0% 1.00x
PrefixCountableRange 35 35 +0.0% 1.00x
PrefixCountableRangeLazy 35 35 +0.0% 1.00x
PrefixWhileArray 88 88 +0.0% 1.00x
PrefixWhileArrayLazy 70 70 +0.0% 1.00x
PrefixWhileCountableRange 36 36 +0.0% 1.00x
PrefixWhileCountableRangeLazy 35 35 +0.0% 1.00x
PrefixWhileSequenceLazy 52 52 +0.0% 1.00x
Prims 900 899 -0.1% 1.00x (?)
PrimsSplit 905 899 -0.7% 1.01x (?)
QueueConcrete 1148 1150 +0.2% 1.00x
QueueGeneric 1147 1150 +0.3% 1.00x
RC4 161 161 +0.0% 1.00x
RGBHistogram 3206 3210 +0.1% 1.00x (?)
RGBHistogramOfObjects 23693 23669 -0.1% 1.00x (?)
Radix2CooleyTukey 12414 12435 +0.2% 1.00x (?)
Radix2CooleyTukeyf 9208 8955 -2.7% 1.03x (?)
RandomDoubleDef 26781 26887 +0.4% 1.00x
RandomDoubleLCG 2907 2924 +0.6% 0.99x
RandomIntegersDef 24582 24340 -1.0% 1.01x
RandomIntegersLCG 994 994 +0.0% 1.00x
RandomShuffleDef 813556 813008 -0.1% 1.00x (?)
RandomShuffleLCG 120269 121551 +1.1% 0.99x (?)
RangeAssignment 363 351 -3.3% 1.03x
RangeIterationSigned 171 171 +0.0% 1.00x
RangeReplaceableCollectionPlusDefault 1011 1014 +0.3% 1.00x (?)
RecursiveOwnedParameter 115 115 +0.0% 1.00x
RemoveWhereFilterInts 49 47 -4.1% 1.04x
RemoveWhereFilterString 253 242 -4.3% 1.05x
RemoveWhereFilterStrings 437 438 +0.2% 1.00x (?)
RemoveWhereMoveInts 15 15 +0.0% 1.00x
RemoveWhereMoveStrings 708 707 -0.1% 1.00x (?)
RemoveWhereQuadraticInts 1295 1299 +0.3% 1.00x (?)
RemoveWhereQuadraticString 370 375 +1.4% 0.99x (?)
RemoveWhereQuadraticStrings 2762 2767 +0.2% 1.00x
RemoveWhereSwapInts 19 19 +0.0% 1.00x
RemoveWhereSwapStrings 859 860 +0.1% 1.00x (?)
ReversedArray 57 57 +0.0% 1.00x
ReversedDictionary 263 263 +0.0% 1.00x
SequenceAlgosAnySequence 11946 12089 +1.2% 0.99x
SequenceAlgosArray 1577 1579 +0.1% 1.00x
SequenceAlgosContiguousArray 1584 1578 -0.4% 1.00x (?)
SequenceAlgosList 1355 1352 -0.2% 1.00x
SequenceAlgosRange 2576 2578 +0.1% 1.00x
SequenceAlgosUnfoldSequence 1102 1102 +0.0% 1.00x
SetExclusiveOr 5044 5049 +0.1% 1.00x (?)
SetExclusiveOr_OfObjects 11647 11645 -0.0% 1.00x (?)
SetIntersect 687 687 +0.0% 1.00x
SetIntersect_OfObjects 1773 1753 -1.1% 1.01x (?)
SetIsSubsetOf_OfObjects 492 486 -1.2% 1.01x
SetUnion 4493 4528 +0.8% 0.99x
SetUnion_OfObjects 10108 10089 -0.2% 1.00x (?)
SevenBoom 836 844 +1.0% 0.99x (?)
SortLargeExistentials 5584 5524 -1.1% 1.01x (?)
SortLettersInPlace 989 999 +1.0% 0.99x (?)
SortSortedStrings 856 843 -1.5% 1.02x
SortStrings 1759 1778 +1.1% 0.99x
StackPromo 24538 24573 +0.1% 1.00x (?)
StaticArray 9 9 +0.0% 1.00x
StrComplexWalk 1775 1781 +0.3% 1.00x
StrToInt 3155 3235 +2.5% 0.98x
StringAdder 536 549 +2.4% 0.98x
StringBuilder 448 455 +1.6% 0.98x
StringBuilderLong 1246 1248 +0.2% 1.00x (?)
StringBuilderSmallReservingCapacity 462 469 +1.5% 0.99x
StringComparison_abnormal 774 786 +1.6% 0.98x (?)
StringComparison_ascii 1005 1024 +1.9% 0.98x
StringComparison_emoji 857 864 +0.8% 0.99x
StringComparison_fastPrenormal 834 847 +1.6% 0.98x (?)
StringComparison_latin1 655 669 +2.1% 0.98x
StringComparison_longSharedPrefix 949 955 +0.6% 0.99x
StringComparison_nonBMPSlowestPrenormal 1681 1687 +0.4% 1.00x (?)
StringComparison_slowerPrenormal 1820 1823 +0.2% 1.00x
StringComparison_zalgo 122177 121533 -0.5% 1.01x (?)
StringEdits 170182 177871 +4.5% 0.96x
StringEnumRawValueInitialization 852 864 +1.4% 0.99x
StringEqualPointerComparison 286 286 +0.0% 1.00x
StringFromLongWholeSubstring 21 21 +0.0% 1.00x
StringFromLongWholeSubstringGeneric 21 21 +0.0% 1.00x
StringHasPrefixAscii 2206 2232 +1.2% 0.99x
StringHasPrefixUnicode 100524 99128 -1.4% 1.01x
StringHasSuffixAscii 2233 2320 +3.9% 0.96x
StringHasSuffixUnicode 100926 101283 +0.4% 1.00x (?)
StringInterpolation 9043 9041 -0.0% 1.00x (?)
StringInterpolationManySmallSegments 18202 18065 -0.8% 1.01x (?)
StringInterpolationSmall 4181 4284 +2.5% 0.98x
StringMatch 12021 12374 +2.9% 0.97x
StringRemoveDupes 476 484 +1.7% 0.98x (?)
StringUTF16Builder 2593 2677 +3.2% 0.97x
StringWalk 1546 1568 +1.4% 0.99x
StringWordBuilder 2221 2221 +0.0% 1.00x
SubstringEqualString 636 636 +0.0% 1.00x
SubstringEquatable 1484 1470 -0.9% 1.01x
SubstringFromLongString 10 10 +0.0% 1.00x
SubstringFromLongStringGeneric 74 74 +0.0% 1.00x
SuffixCountableRange 11 11 +0.0% 1.00x
SuffixCountableRangeLazy 11 11 +0.0% 1.00x
SuffixSequence 3619 3642 +0.6% 0.99x (?)
SuffixSequenceLazy 3620 3645 +0.7% 0.99x (?)
SumUsingReduce 97 97 +0.0% 1.00x
SumUsingReduceInto 97 97 +0.0% 1.00x
SuperChars 20315 20248 -0.3% 1.00x (?)
TwoSum 1487 1466 -1.4% 1.01x (?)
TypeFlood 0 0 +0.0% 1.00x
UTF8Decode 312 312 +0.0% 1.00x
UTF8Decode_InitDecoding 1358 1351 -0.5% 1.01x
UTF8Decode_InitDecoding_ascii 659 652 -1.1% 1.01x
UTF8Decode_InitFromBytes 1197 1193 -0.3% 1.00x (?)
UTF8Decode_InitFromBytes_ascii 505 512 +1.4% 0.99x (?)
UTF8Decode_InitFromData 1237 1247 +0.8% 0.99x (?)
Walsh 431 435 +0.9% 0.99x
WordCountHistogramASCII 7907 8044 +1.7% 0.98x
WordCountHistogramUTF16 14731 15247 +3.5% 0.97x (?)
WordCountUniqueASCII 2063 2098 +1.7% 0.98x
WordCountUniqueUTF16 8011 8190 +2.2% 0.98x (?)
WordSplitASCII 7466 7390 -1.0% 1.01x (?)
WordSplitUTF16 9278 9618 +3.7% 0.96x
XorLoop 403 402 -0.2% 1.00x (?)
Hardware Overview 
  Model Name: Mac Pro
  Model Identifier: MacPro6,1
  Processor Name: 12-Core Intel Xeon E5
  Processor Speed: 2.7 GHz
  Number of Processors: 1
  Total Number of Cores: 12
  L2 Cache (per Core): 256 KB
  L3 Cache: 30 MB
  Memory: 64 GB

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lol

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@swift-ci please smoke benchmark

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Build comment file:

Optimized (O)

Regression (76)
TEST OLD NEW DELTA SPEEDUP
PrefixAnySeqCRangeIter 40 18965 +47311.3% 0.00x
PrefixAnySeqCRangeIterLazy 40 18947 +47266.3% 0.00x
DropLastAnySeqCntRangeLazy 11 5189 +47068.4% 0.00x
DropLastAnySeqCntRange 11 5183 +47013.9% 0.00x
DropWhileAnySeqCRangeIter 75 24537 +32615.6% 0.00x
SuffixAnySeqCntRange 17 5180 +30368.8% 0.00x
SuffixAnySeqCntRangeLazy 17 5178 +30357.0% 0.00x
DropFirstAnySeqCRangeIterLazy 93 23765 +25453.5% 0.00x
DropFirstAnySeqCRangeIter 93 23726 +25411.6% 0.00x
PrefixAnySeqCntRangeLazy 71 15553 +21805.3% 0.00x
DropFirstAnySeqCntRange 71 15543 +21791.2% 0.00x
PrefixAnySeqCntRange 71 15539 +21785.6% 0.00x
DropFirstAnySeqCntRangeLazy 71 15509 +21743.4% 0.00x
DropWhileAnySeqCntRange 95 19987 +20938.7% 0.00x
PrefixWhileAnySeqCntRangeLazy 71 14898 +20882.8% 0.00x
PrefixWhileAnyCollectionLazy 71 14851 +20816.6% 0.00x
PrefixAnyCollection 76 15572 +20389.2% 0.00x
DropFirstAnyCollection 76 15560 +20373.4% 0.00x
PrefixWhileAnySeqCntRange 142 28864 +20226.6% 0.00x
DropWhileAnyCollection 100 19988 +19887.8% 0.01x
PrefixWhileAnyCollection 146 28825 +19643.0% 0.01x
SuffixAnyCollection 28 5195 +18452.9% 0.01x
DropLastAnyCollection 28 5189 +18431.5% 0.01x
PrefixWhileAnySeqCRangeIterLazy 89 14868 +16605.4% 0.01x
DropWhileAnySeqCntRangeLazy 130 19854 +15172.2% 0.01x
DropWhileAnyCollectionLazy 130 19826 +15150.7% 0.01x
DropWhileAnySeqCRangeIterLazy 130 19806 +15135.3% 0.01x
PrefixWhileAnySeqCRangeIter 380 32837 +8541.3% 0.01x
PrefixWhileSequence 357 9667 +2607.8% 0.04x
MapReduceAnyCollection 373 8097 +2070.8% 0.05x
PrefixWhileAnySequence 1535 20150 +1212.7% 0.08x
DropLastAnySeqCRangeIter 3278 39257 +1097.6% 0.08x
DropLastAnySeqCRangeIterLazy 3285 39322 +1097.0% 0.08x
SuffixAnySeqCRangeIterLazy 3590 35507 +889.1% 0.10x
SuffixAnySeqCRangeIter 3601 35478 +885.2% 0.10x
DropLastSequenceLazy 631 3850 +510.1% 0.16x
DropLastSequence 631 3756 +495.2% 0.17x
MapReduceAnyCollectionShort 2041 11621 +469.4% 0.18x
DropLastAnySequence 4978 22655 +355.1% 0.22x
DropLastAnySequenceLazy 5062 22723 +348.9% 0.22x
PrefixAnySequenceLazy 1378 5671 +311.5% 0.24x
PrefixAnySequence 1379 5669 +311.1% 0.24x
SuffixAnySequence 4896 19050 +289.1% 0.26x
DropWhileAnySequence 1861 7151 +284.3% 0.26x
SuffixAnySequenceLazy 5007 19213 +283.7% 0.26x
DropFirstAnySequence 1842 6483 +252.0% 0.28x
DropFirstAnySequenceLazy 1842 6483 +252.0% 0.28x
DropWhileSequence 2220 5525 +148.9% 0.40x
PrefixSequence 2224 5276 +137.2% 0.42x
PrefixSequenceLazy 2276 5279 +131.9% 0.43x
ReversedBidirectional 17024 39398 +131.4% 0.43x
DropFirstSequence 2681 5788 +115.9% 0.46x
DropFirstSequenceLazy 2768 5861 +111.7% 0.47x
PrefixWhileAnySequenceLazy 1391 2359 +69.6% 0.59x
DropWhileAnySequenceLazy 1855 3145 +69.5% 0.59x
COWTree 3721 5337 +43.4% 0.70x
StaticArray 9 11 +22.2% 0.82x
SuffixAnyCollectionLazy 21693 25831 +19.1% 0.84x
UTF8Decode_InitFromBytes_ascii 483 560 +15.9% 0.86x (?)
UTF8Decode_InitFromData_ascii 680 748 +10.0% 0.91x (?)
SuffixCountableRange 11 12 +9.1% 0.92x
DropLastCountableRange 11 12 +9.1% 0.92x
SuffixCountableRangeLazy 11 12 +9.1% 0.92x
DropLastCountableRangeLazy 11 12 +9.1% 0.92x
RC4 149 161 +8.1% 0.93x
ObjectiveCBridgeFromNSArrayAnyObjectForced 4736 5113 +8.0% 0.93x (?)
SubstringComparable 13 14 +7.7% 0.93x
RemoveWhereMoveInts 14 15 +7.1% 0.93x
CStringLongNonAscii 2291 2443 +6.6% 0.94x
DictionaryCopy 106224 113030 +6.4% 0.94x
DictionaryFilter 105506 112231 +6.4% 0.94x
UTF8Decode_InitFromBytes 1179 1249 +5.9% 0.94x
DropFirstAnyCollectionLazy 68443 72349 +5.7% 0.95x
SetIsSubsetOf_OfObjects 435 459 +5.5% 0.95x
CharIteration_tweet_unicodeScalars 40144 42274 +5.3% 0.95x
DataSetCount 549 578 +5.3% 0.95x (?)
Improvement (20)
TEST OLD NEW DELTA SPEEDUP
LuhnAlgoEager 446 328 -26.5% 1.36x
LuhnAlgoLazy 442 332 -24.9% 1.33x
BinaryFloatingPointPropertiesBinade 31 25 -19.4% 1.24x
RangeIterationSigned 200 171 -14.5% 1.17x
ObjectiveCBridgeStubFromArrayOfNSString 40951 35194 -14.1% 1.16x
DataCopyBytes 506 453 -10.5% 1.12x (?)
Sim2DArray 668 599 -10.3% 1.12x
DataAppendDataSmallToLarge 40998 37297 -9.0% 1.10x (?)
ObjectiveCBridgeStubFromNSString 1095 1001 -8.6% 1.09x (?)
ObjectiveCBridgeFromNSArrayAnyObjectToStringForced 47509 44099 -7.2% 1.08x (?)
ObjectiveCBridgeStubFromNSDate 6638 6183 -6.9% 1.07x (?)
ObjectiveCBridgeToNSSet 18736 17514 -6.5% 1.07x
ObjectiveCBridgeFromNSStringForced 2848 2677 -6.0% 1.06x (?)
ObjectiveCBridgeStubToNSDate 15686 14785 -5.7% 1.06x (?)
ObjectiveCBridgeStubToArrayOfNSString 43033 40602 -5.6% 1.06x (?)
ObjectiveCBridgeFromNSArrayAnyObject 26213 24775 -5.5% 1.06x (?)
BinaryFloatingPointPropertiesUlp 37 35 -5.4% 1.06x
ObjectiveCBridgeStubURLAppendPath 295780 280065 -5.3% 1.06x
SumUsingReduce 102 97 -4.9% 1.05x
ObjectiveCBridgeToNSDictionary 27874 26511 -4.9% 1.05x (?)
No Changes (350)
TEST OLD NEW DELTA SPEEDUP
AngryPhonebook 3788 3849 +1.6% 0.98x (?)
AnyHashableWithAClass 86538 86861 +0.4% 1.00x
Array2D 2856 2859 +0.1% 1.00x (?)
ArrayAppend 1107 1083 -2.2% 1.02x
ArrayAppendArrayOfInt 797 797 +0.0% 1.00x
ArrayAppendAscii 3982 4049 +1.7% 0.98x (?)
ArrayAppendAsciiSubstring 25161 25055 -0.4% 1.00x
ArrayAppendFromGeneric 799 799 +0.0% 1.00x
ArrayAppendGenericStructs 1432 1430 -0.1% 1.00x (?)
ArrayAppendLatin1 41194 41475 +0.7% 0.99x (?)
ArrayAppendLatin1Substring 143404 143201 -0.1% 1.00x (?)
ArrayAppendLazyMap 1340 1348 +0.6% 0.99x (?)
ArrayAppendOptionals 1435 1428 -0.5% 1.00x (?)
ArrayAppendRepeatCol 1333 1339 +0.5% 1.00x (?)
ArrayAppendReserved 846 817 -3.4% 1.04x
ArrayAppendSequence 1123 1123 +0.0% 1.00x
ArrayAppendStrings 6208 6226 +0.3% 1.00x
ArrayAppendToFromGeneric 797 801 +0.5% 1.00x (?)
ArrayAppendToGeneric 801 800 -0.1% 1.00x (?)
ArrayAppendUTF16 40901 41164 +0.6% 0.99x
ArrayAppendUTF16Substring 140967 140277 -0.5% 1.00x
ArrayInClass 86 86 +0.0% 1.00x
ArrayLiteral 0 0 +0.0% 1.00x
ArrayOfGenericPOD2 151 151 +0.0% 1.00x
ArrayOfGenericRef 4386 4385 -0.0% 1.00x (?)
ArrayOfPOD 184 184 +0.0% 1.00x
ArrayOfRef 4370 4358 -0.3% 1.00x
ArrayPlusEqualArrayOfInt 785 798 +1.7% 0.98x (?)
ArrayPlusEqualFiveElementCollection 5598 5466 -2.4% 1.02x
ArrayPlusEqualSingleElementCollection 1111 1076 -3.2% 1.03x
ArrayPlusEqualThreeElements 1682 1645 -2.2% 1.02x
ArraySubscript 1556 1513 -2.8% 1.03x
ArrayValueProp 8 8 +0.0% 1.00x
ArrayValueProp2 8 8 +0.0% 1.00x
ArrayValueProp3 8 8 +0.0% 1.00x
ArrayValueProp4 8 8 +0.0% 1.00x
BinaryFloatingPointPropertiesNextUp 28 28 +0.0% 1.00x
BitCount 211 202 -4.3% 1.04x
ByteSwap 101 106 +5.0% 0.95x
COWArrayGuaranteedParameterOverhead 8793 8735 -0.7% 1.01x (?)
CSVParsing 654902 654444 -0.1% 1.00x (?)
CSVParsingAlt 809311 808657 -0.1% 1.00x (?)
CSVParsingAltIndices 345794 342860 -0.8% 1.01x
CStringLongAscii 4162 4153 -0.2% 1.00x (?)
CStringShortAscii 3338 3365 +0.8% 0.99x
Calculator 207 207 +0.0% 1.00x
CaptureProp 4061 4081 +0.5% 1.00x (?)
ChainedFilterMap 1247 1249 +0.2% 1.00x (?)
CharIndexing_ascii_unicodeScalars 16283 16284 +0.0% 1.00x (?)
CharIndexing_ascii_unicodeScalars_Backwards 16033 16040 +0.0% 1.00x (?)
CharIndexing_chinese_unicodeScalars 12339 12344 +0.0% 1.00x (?)
CharIndexing_chinese_unicodeScalars_Backwards 12165 12170 +0.0% 1.00x (?)
CharIndexing_japanese_unicodeScalars 19488 19518 +0.2% 1.00x (?)
CharIndexing_japanese_unicodeScalars_Backwards 19182 19226 +0.2% 1.00x
CharIndexing_korean_unicodeScalars 15796 15803 +0.0% 1.00x (?)
CharIndexing_korean_unicodeScalars_Backwards 15543 15560 +0.1% 1.00x (?)
CharIndexing_punctuatedJapanese_unicodeScalars 2963 2963 +0.0% 1.00x
CharIndexing_punctuatedJapanese_unicodeScalars_Backwards 2917 2932 +0.5% 0.99x
CharIndexing_punctuated_unicodeScalars 3695 3703 +0.2% 1.00x (?)
CharIndexing_punctuated_unicodeScalars_Backwards 3640 3658 +0.5% 1.00x
CharIndexing_russian_unicodeScalars 13573 13575 +0.0% 1.00x (?)
CharIndexing_russian_unicodeScalars_Backwards 13368 13369 +0.0% 1.00x (?)
CharIndexing_tweet_unicodeScalars 32095 32115 +0.1% 1.00x
CharIndexing_tweet_unicodeScalars_Backwards 31613 31744 +0.4% 1.00x
CharIndexing_utf16_unicodeScalars 22902 22898 -0.0% 1.00x (?)
CharIndexing_utf16_unicodeScalars_Backwards 23329 23306 -0.1% 1.00x
CharIteration_ascii_unicodeScalars 20629 20846 +1.1% 0.99x
CharIteration_ascii_unicodeScalars_Backwards 15115 15112 -0.0% 1.00x (?)
CharIteration_chinese_unicodeScalars 15624 15773 +1.0% 0.99x
CharIteration_chinese_unicodeScalars_Backwards 11440 11436 -0.0% 1.00x (?)
CharIteration_japanese_unicodeScalars 24732 24914 +0.7% 0.99x (?)
CharIteration_japanese_unicodeScalars_Backwards 18087 18084 -0.0% 1.00x (?)
CharIteration_korean_unicodeScalars 20007 20234 +1.1% 0.99x
CharIteration_korean_unicodeScalars_Backwards 14653 14642 -0.1% 1.00x (?)
CharIteration_punctuatedJapanese_unicodeScalars 3719 3758 +1.0% 0.99x
CharIteration_punctuatedJapanese_unicodeScalars_Backwards 2733 2737 +0.1% 1.00x
CharIteration_punctuated_unicodeScalars 4656 4699 +0.9% 0.99x
CharIteration_punctuated_unicodeScalars_Backwards 3421 3426 +0.1% 1.00x (?)
CharIteration_russian_unicodeScalars 17173 17364 +1.1% 0.99x
CharIteration_russian_unicodeScalars_Backwards 12586 12590 +0.0% 1.00x (?)
CharIteration_tweet_unicodeScalars_Backwards 29831 29843 +0.0% 1.00x (?)
CharIteration_utf16_unicodeScalars 27674 27923 +0.9% 0.99x
CharIteration_utf16_unicodeScalars_Backwards 18539 18535 -0.0% 1.00x (?)
CharacterLiteralsLarge 5928 5911 -0.3% 1.00x
CharacterLiteralsSmall 220 220 +0.0% 1.00x
CharacterPropertiesFetch 4646 4674 +0.6% 0.99x (?)
CharacterPropertiesPrecomputed 1032 1038 +0.6% 0.99x
CharacterPropertiesStashed 1493 1532 +2.6% 0.97x
CharacterPropertiesStashedMemo 1596 1610 +0.9% 0.99x
Chars 1018 1018 +0.0% 1.00x
ClassArrayGetter 15 15 +0.0% 1.00x
Combos 489 489 +0.0% 1.00x
DataAccessBytes 1145 1142 -0.3% 1.00x
DataAppendArray 5250 5272 +0.4% 1.00x (?)
DataAppendBytes 4842 4930 +1.8% 0.98x
DataAppendDataLargeToLarge 68452 66397 -3.0% 1.03x
DataAppendDataLargeToMedium 35882 35531 -1.0% 1.01x (?)
DataAppendDataLargeToSmall 34667 34592 -0.2% 1.00x (?)
DataAppendDataMediumToLarge 38202 38330 +0.3% 1.00x (?)
DataAppendDataMediumToMedium 6677 6767 +1.3% 0.99x (?)
DataAppendDataMediumToSmall 5934 5946 +0.2% 1.00x (?)
DataAppendDataSmallToMedium 5865 6047 +3.1% 0.97x (?)
DataAppendDataSmallToSmall 6025 6005 -0.3% 1.00x (?)
DataAppendSequence 20650 20655 +0.0% 1.00x (?)
DataCount 37 37 +0.0% 1.00x
DataMutateBytes 3920 3922 +0.1% 1.00x (?)
DataReplaceLarge 36582 37163 +1.6% 0.98x
DataReplaceLargeBuffer 56320 57557 +2.2% 0.98x
DataReplaceMedium 7499 7717 +2.9% 0.97x (?)
DataReplaceMediumBuffer 11248 10830 -3.7% 1.04x (?)
DataReplaceSmall 5478 5598 +2.2% 0.98x (?)
DataReplaceSmallBuffer 8590 8708 +1.4% 0.99x (?)
DataReset 2826 2837 +0.4% 1.00x (?)
DataSubscript 220 220 +0.0% 1.00x
DictOfArraysToArrayOfDicts 779 784 +0.6% 0.99x (?)
Dictionary 509 511 +0.4% 1.00x (?)
Dictionary2 638 637 -0.2% 1.00x (?)
Dictionary2OfObjects 2087 2083 -0.2% 1.00x (?)
Dictionary3 226 222 -1.8% 1.02x (?)
Dictionary3OfObjects 736 737 +0.1% 1.00x (?)
Dictionary4 325 326 +0.3% 1.00x
Dictionary4Legacy 740 737 -0.4% 1.00x
Dictionary4OfObjects 446 448 +0.4% 1.00x
Dictionary4OfObjectsLegacy 961 980 +2.0% 0.98x
DictionaryBridge 1179 1172 -0.6% 1.01x (?)
DictionaryGroup 216 216 +0.0% 1.00x
DictionaryGroupOfObjects 2125 2121 -0.2% 1.00x (?)
DictionaryKeysContainsCocoa 39 40 +2.6% 0.98x (?)
DictionaryKeysContainsNative 32 32 +0.0% 1.00x
DictionaryLiteral 1952 1914 -1.9% 1.02x
DictionaryOfObjects 2382 2362 -0.8% 1.01x
DictionaryRemove 4240 4231 -0.2% 1.00x (?)
DictionaryRemoveOfObjects 25863 25848 -0.1% 1.00x (?)
DictionarySubscriptDefaultMutation 265 263 -0.8% 1.01x (?)
DictionarySubscriptDefaultMutationArray 607 605 -0.3% 1.00x (?)
DictionarySubscriptDefaultMutationArrayOfObjects 4065 4001 -1.6% 1.02x (?)
DictionarySubscriptDefaultMutationOfObjects 1707 1706 -0.1% 1.00x (?)
DictionarySwap 1073 1077 +0.4% 1.00x
DictionarySwapAt 6997 6999 +0.0% 1.00x (?)
DictionarySwapAtOfObjects 52209 52369 +0.3% 1.00x (?)
DictionarySwapOfObjects 8738 8837 +1.1% 0.99x (?)
DoubleWidthDivision 0 0 +0.0% 1.00x
DropFirstArray 35 35 +0.0% 1.00x
DropFirstArrayLazy 35 35 +0.0% 1.00x
DropFirstCountableRange 35 35 +0.0% 1.00x
DropFirstCountableRangeLazy 35 35 +0.0% 1.00x
DropLastAnyCollectionLazy 22941 22990 +0.2% 1.00x (?)
DropWhileArrayLazy 88 88 +0.0% 1.00x
DropWhileCountableRange 36 36 +0.0% 1.00x
DropWhileCountableRangeLazy 105 105 +0.0% 1.00x
DropWhileSequenceLazy 88 88 +0.0% 1.00x
EqualStringSubstring 52 52 +0.0% 1.00x
EqualSubstringString 51 52 +2.0% 0.98x
EqualSubstringSubstring 51 52 +2.0% 0.98x
EqualSubstringSubstringGenericEquatable 51 52 +2.0% 0.98x
ErrorHandling 1181 1210 +2.5% 0.98x (?)
ExclusivityGlobal 5 5 +0.0% 1.00x
ExclusivityIndependent 2 2 +0.0% 1.00x
FatCompactMap 199711 200562 +0.4% 1.00x
FilterEvenUsingReduce 1313 1318 +0.4% 1.00x (?)
FilterEvenUsingReduceInto 148 148 +0.0% 1.00x
FloatingPointPrinting_Double_description_small 21546 21494 -0.2% 1.00x (?)
FloatingPointPrinting_Double_description_uniform 21106 21005 -0.5% 1.00x (?)
FloatingPointPrinting_Double_interpolated 61742 62301 +0.9% 0.99x (?)
FloatingPointPrinting_Float80_description_small 28607 28249 -1.3% 1.01x (?)
FloatingPointPrinting_Float80_description_uniform 27528 27445 -0.3% 1.00x (?)
FloatingPointPrinting_Float80_interpolated 65830 65423 -0.6% 1.01x (?)
FloatingPointPrinting_Float_description_small 5376 5436 +1.1% 0.99x
FloatingPointPrinting_Float_description_uniform 5405 5417 +0.2% 1.00x (?)
FloatingPointPrinting_Float_interpolated 38606 39367 +2.0% 0.98x (?)
FrequenciesUsingReduce 4852 4933 +1.7% 0.98x
FrequenciesUsingReduceInto 1501 1519 +1.2% 0.99x (?)
Hanoi 2239 2297 +2.6% 0.97x
HashTest 934 946 +1.3% 0.99x
Histogram 706 710 +0.6% 0.99x
Integrate 334 335 +0.3% 1.00x
IterateData 1445 1497 +3.6% 0.97x
Join 174 170 -2.3% 1.02x
LazilyFilteredArrayContains 35466 35532 +0.2% 1.00x
LazilyFilteredArrays 66272 66712 +0.7% 0.99x (?)
LazilyFilteredRange 3876 3874 -0.1% 1.00x
LessSubstringSubstring 51 52 +2.0% 0.98x
LessSubstringSubstringGenericComparable 51 52 +2.0% 0.98x
LinkedList 7528 7520 -0.1% 1.00x (?)
MapReduce 373 370 -0.8% 1.01x
MapReduceClass 3004 3002 -0.1% 1.00x (?)
MapReduceClassShort 4571 4556 -0.3% 1.00x
MapReduceLazyCollection 13 13 +0.0% 1.00x
MapReduceLazyCollectionShort 37 36 -2.7% 1.03x (?)
MapReduceLazySequence 86 86 +0.0% 1.00x
MapReduceSequence 458 461 +0.7% 0.99x (?)
MapReduceShort 2010 1988 -1.1% 1.01x (?)
MapReduceShortString 21 20 -4.8% 1.05x
MapReduceString 47 47 +0.0% 1.00x
Memset 215 223 +3.7% 0.96x (?)
MonteCarloE 10303 10195 -1.0% 1.01x
MonteCarloPi 42950 42776 -0.4% 1.00x
NSDictionaryCastToSwift 7022 6935 -1.2% 1.01x (?)
NSError 164 163 -0.6% 1.01x (?)
NSStringConversion 713 698 -2.1% 1.02x
NibbleSort 3696 3696 +0.0% 1.00x
NopDeinit 31580 31585 +0.0% 1.00x (?)
ObjectAllocation 135 133 -1.5% 1.02x
ObjectiveCBridgeFromNSArrayAnyObjectToString 47412 46195 -2.6% 1.03x (?)
ObjectiveCBridgeFromNSDictionaryAnyObject 108218 106773 -1.3% 1.01x (?)
ObjectiveCBridgeFromNSSetAnyObject 48311 48900 +1.2% 0.99x (?)
ObjectiveCBridgeFromNSSetAnyObjectForced 4984 5033 +1.0% 0.99x (?)
ObjectiveCBridgeFromNSSetAnyObjectToString 68432 69936 +2.2% 0.98x (?)
ObjectiveCBridgeFromNSString 1254 1229 -2.0% 1.02x (?)
ObjectiveCBridgeStubDataAppend 6330 6449 +1.9% 0.98x (?)
ObjectiveCBridgeStubDateMutation 400 401 +0.2% 1.00x
ObjectiveCBridgeStubFromNSStringRef 165 158 -4.2% 1.04x
ObjectiveCBridgeStubNSDataAppend 2707 2717 +0.4% 1.00x (?)
ObjectiveCBridgeStubNSDateMutationRef 13639 13705 +0.5% 1.00x (?)
ObjectiveCBridgeStubToNSDateRef 3426 3438 +0.4% 1.00x (?)
ObjectiveCBridgeStubToNSString 2350 2344 -0.3% 1.00x (?)
ObjectiveCBridgeStubToNSStringRef 115 116 +0.9% 0.99x
ObjectiveCBridgeStubURLAppendPathRef 288429 283123 -1.8% 1.02x
ObjectiveCBridgeToNSArray 14927 14496 -2.9% 1.03x (?)
ObjectiveCBridgeToNSString 447 450 +0.7% 0.99x
ObserverClosure 2168 2174 +0.3% 1.00x (?)
ObserverForwarderStruct 1217 1211 -0.5% 1.00x (?)
ObserverPartiallyAppliedMethod 3692 3757 +1.8% 0.98x
ObserverUnappliedMethod 2486 2467 -0.8% 1.01x (?)
OpaqueConsumingUsers 4180 4182 +0.0% 1.00x
OpenClose 68 68 +0.0% 1.00x
PartialApplyDynamicType 0 0 +0.0% 1.00x
Phonebook 6846 6974 +1.9% 0.98x
PointerArithmetics 34353 34370 +0.0% 1.00x (?)
PolymorphicCalls 25 25 +0.0% 1.00x
PopFrontArray 1961 1969 +0.4% 1.00x (?)
PopFrontArrayGeneric 1993 2002 +0.5% 1.00x (?)
PopFrontUnsafePointer 9506 9555 +0.5% 0.99x (?)
PrefixAnyCollectionLazy 67317 67360 +0.1% 1.00x (?)
PrefixArray 35 35 +0.0% 1.00x
PrefixArrayLazy 35 35 +0.0% 1.00x
PrefixCountableRange 35 35 +0.0% 1.00x
PrefixCountableRangeLazy 35 35 +0.0% 1.00x
PrefixWhileArray 88 88 +0.0% 1.00x
PrefixWhileArrayLazy 70 70 +0.0% 1.00x
PrefixWhileCountableRange 36 36 +0.0% 1.00x
PrefixWhileCountableRangeLazy 35 35 +0.0% 1.00x
PrefixWhileSequenceLazy 52 52 +0.0% 1.00x
Prims 897 903 +0.7% 0.99x
PrimsSplit 897 904 +0.8% 0.99x (?)
QueueConcrete 1151 1149 -0.2% 1.00x
QueueGeneric 1149 1149 +0.0% 1.00x
RGBHistogram 3218 3214 -0.1% 1.00x (?)
RGBHistogramOfObjects 23590 23753 +0.7% 0.99x (?)
Radix2CooleyTukey 12449 12290 -1.3% 1.01x (?)
Radix2CooleyTukeyf 9084 8917 -1.8% 1.02x
RandomDoubleDef 26670 26714 +0.2% 1.00x
RandomDoubleLCG 2916 2916 +0.0% 1.00x
RandomIntegersDef 24488 24475 -0.1% 1.00x (?)
RandomIntegersLCG 994 995 +0.1% 1.00x
RandomShuffleDef 813980 806606 -0.9% 1.01x (?)
RandomShuffleLCG 120761 120990 +0.2% 1.00x (?)
RangeAssignment 337 351 +4.2% 0.96x
RangeReplaceableCollectionPlusDefault 1018 1012 -0.6% 1.01x (?)
RecursiveOwnedParameter 115 115 +0.0% 1.00x
RemoveWhereFilterInts 47 47 +0.0% 1.00x
RemoveWhereFilterString 242 249 +2.9% 0.97x
RemoveWhereFilterStrings 437 440 +0.7% 0.99x
RemoveWhereMoveStrings 707 708 +0.1% 1.00x (?)
RemoveWhereQuadraticInts 1298 1296 -0.2% 1.00x (?)
RemoveWhereQuadraticString 380 383 +0.8% 0.99x (?)
RemoveWhereQuadraticStrings 2761 2764 +0.1% 1.00x (?)
RemoveWhereSwapInts 19 19 +0.0% 1.00x
RemoveWhereSwapStrings 860 858 -0.2% 1.00x
ReversedArray 57 58 +1.8% 0.98x
ReversedDictionary 268 267 -0.4% 1.00x (?)
RomanNumbers 84975 86241 +1.5% 0.99x
SequenceAlgosAnySequence 11990 12083 +0.8% 0.99x
SequenceAlgosArray 1578 1578 +0.0% 1.00x
SequenceAlgosContiguousArray 1577 1589 +0.8% 0.99x
SequenceAlgosList 1352 1354 +0.1% 1.00x
SequenceAlgosRange 2577 2587 +0.4% 1.00x
SequenceAlgosUnfoldSequence 1102 1102 +0.0% 1.00x
SetExclusiveOr 4938 5008 +1.4% 0.99x
SetExclusiveOr_OfObjects 11757 11632 -1.1% 1.01x
SetIntersect 681 685 +0.6% 0.99x (?)
SetIntersect_OfObjects 1776 1777 +0.1% 1.00x (?)
SetIsSubsetOf 359 361 +0.6% 0.99x
SetUnion 4444 4438 -0.1% 1.00x (?)
SetUnion_OfObjects 10134 10056 -0.8% 1.01x
SevenBoom 840 841 +0.1% 1.00x (?)
SortLargeExistentials 5563 5593 +0.5% 0.99x
SortLettersInPlace 1003 996 -0.7% 1.01x (?)
SortSortedStrings 874 881 +0.8% 0.99x (?)
SortStrings 1806 1808 +0.1% 1.00x
SortStringsUnicode 2636 2567 -2.6% 1.03x
StackPromo 24546 24530 -0.1% 1.00x
StrComplexWalk 1776 1777 +0.1% 1.00x (?)
StrToInt 3224 3204 -0.6% 1.01x
StringAdder 548 562 +2.6% 0.98x
StringBuilder 454 462 +1.8% 0.98x
StringBuilderLong 1248 1261 +1.0% 0.99x (?)
StringBuilderSmallReservingCapacity 468 478 +2.1% 0.98x
StringBuilderWithLongSubstring 1474 1453 -1.4% 1.01x (?)
StringComparison_abnormal 786 777 -1.1% 1.01x
StringComparison_ascii 1022 1035 +1.3% 0.99x
StringComparison_emoji 861 866 +0.6% 0.99x
StringComparison_fastPrenormal 858 873 +1.7% 0.98x
StringComparison_latin1 706 682 -3.4% 1.04x
StringComparison_longSharedPrefix 952 963 +1.2% 0.99x
StringComparison_nonBMPSlowestPrenormal 1663 1696 +2.0% 0.98x
StringComparison_slowerPrenormal 1801 1826 +1.4% 0.99x
StringComparison_zalgo 120440 121146 +0.6% 0.99x (?)
StringEdits 166504 167478 +0.6% 0.99x (?)
StringEnumRawValueInitialization 866 860 -0.7% 1.01x
StringEqualPointerComparison 286 286 +0.0% 1.00x
StringFromLongWholeSubstring 21 21 +0.0% 1.00x
StringFromLongWholeSubstringGeneric 21 21 +0.0% 1.00x
StringHasPrefixAscii 2262 2290 +1.2% 0.99x
StringHasPrefixUnicode 99944 99618 -0.3% 1.00x (?)
StringHasSuffixAscii 2318 2348 +1.3% 0.99x
StringHasSuffixUnicode 101797 101716 -0.1% 1.00x (?)
StringInterpolation 9177 9223 +0.5% 1.00x (?)
StringInterpolationManySmallSegments 18422 18105 -1.7% 1.02x
StringInterpolationSmall 4279 4297 +0.4% 1.00x
StringMatch 12224 12476 +2.1% 0.98x
StringRemoveDupes 486 485 -0.2% 1.00x (?)
StringUTF16Builder 2667 2665 -0.1% 1.00x (?)
StringUTF16SubstringBuilder 5867 5799 -1.2% 1.01x (?)
StringWalk 1569 1563 -0.4% 1.00x
StringWithCString 42975 43067 +0.2% 1.00x
StringWordBuilder 2222 2216 -0.3% 1.00x
StringWordBuilderReservingCapacity 1850 1793 -3.1% 1.03x
SubstringEqualString 639 644 +0.8% 0.99x
SubstringEquatable 1546 1477 -4.5% 1.05x
SubstringFromLongString 10 10 +0.0% 1.00x
SubstringFromLongStringGeneric 74 74 +0.0% 1.00x
SuffixSequence 3625 3658 +0.9% 0.99x
SuffixSequenceLazy 3625 3658 +0.9% 0.99x
SumUsingReduceInto 101 97 -4.0% 1.04x
SuperChars 20067 20124 +0.3% 1.00x (?)
TwoSum 1453 1461 +0.6% 0.99x (?)
TypeFlood 0 0 +0.0% 1.00x
UTF8Decode 298 298 +0.0% 1.00x
UTF8Decode_InitDecoding 1357 1359 +0.1% 1.00x (?)
UTF8Decode_InitDecoding_ascii 656 651 -0.8% 1.01x (?)
UTF8Decode_InitFromData 1255 1267 +1.0% 0.99x (?)
Walsh 434 444 +2.3% 0.98x
WordCountHistogramASCII 8038 8152 +1.4% 0.99x (?)
WordCountHistogramUTF16 14742 14068 -4.6% 1.05x
WordCountUniqueASCII 2106 2073 -1.6% 1.02x
WordCountUniqueUTF16 7586 7244 -4.5% 1.05x (?)
WordSplitASCII 7489 7731 +3.2% 0.97x (?)
WordSplitUTF16 9716 9956 +2.5% 0.98x (?)
XorLoop 403 402 -0.2% 1.00x (?)
Hardware Overview 
  Model Name: Mac Pro
  Model Identifier: MacPro6,1
  Processor Name: 12-Core Intel Xeon E5
  Processor Speed: 2.7 GHz
  Number of Processors: 1
  Total Number of Cores: 12
  L2 Cache (per Core): 256 KB
  L3 Cache: 30 MB
  Memory: 64 GB

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Ooof

@slavapestov
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On the other hand, how representative are those benchmarks of real uses of the existential collections?

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