[benchmark] RandomValues Legacy Factor

Author: palimondo

benchmark/single-source/RandomValues.swift

@@ -19,21 +19,25 @@ import TestsUtils
 //
 
 public let RandomValues = [
-  BenchmarkInfo(name: "RandomIntegersDef", runFunction: run_RandomIntegersDef, tags: [.api]),
-  BenchmarkInfo(name: "RandomIntegersLCG", runFunction: run_RandomIntegersLCG, tags: [.api]),
-  BenchmarkInfo(name: "RandomDoubleDef", runFunction: run_RandomDoubleDef, tags: [.api]),
-  BenchmarkInfo(name: "RandomDoubleLCG", runFunction: run_RandomDoubleLCG, tags: [.api]),
+  BenchmarkInfo(name: "RandomIntegersDef", runFunction: run_RandomIntegersDef,
+    tags: [.api], legacyFactor: 100),
+  BenchmarkInfo(name: "RandomIntegersLCG", runFunction: run_RandomIntegersLCG,
+    tags: [.api]),
+  BenchmarkInfo(name: "RandomDoubleDef", runFunction: run_RandomDoubleDef,
+    tags: [.api], legacyFactor: 100),
+  BenchmarkInfo(name: "RandomDoubleLCG", runFunction: run_RandomDoubleLCG,
+    tags: [.api], legacyFactor: 2),
 ]
 
 /// A linear congruential PRNG.
 struct LCRNG: RandomNumberGenerator {
   private var state: UInt64
-  
+
   init(seed: Int) {
     state = UInt64(truncatingIfNeeded: seed)
     for _ in 0..<10 { _ = next() }
   }
-  
+
   mutating func next() -> UInt64 {
     state = 2862933555777941757 &* state &+ 3037000493
     return state
@@ -44,7 +48,7 @@ struct LCRNG: RandomNumberGenerator {
 public func run_RandomIntegersDef(_ N: Int) {
   for _ in 0 ..< N {
     var x = 0
-    for _ in 0 ..< 100_000 {
+    for _ in 0 ..< 1_000 {
       x &+= Int.random(in: 0...10_000)
     }
     blackHole(x)
@@ -67,7 +71,7 @@ public func run_RandomIntegersLCG(_ N: Int) {
 public func run_RandomDoubleDef(_ N: Int) {
   for _ in 0 ..< N {
     var x = 0.0
-    for _ in 0 ..< 100_000 {
+    for _ in 0 ..< 1_000 {
       x += Double.random(in: -1000...1000)
     }
     blackHole(x)
@@ -79,7 +83,7 @@ public func run_RandomDoubleLCG(_ N: Int) {
   for _ in 0 ..< N {
     var x = 0.0
     var generator = LCRNG(seed: 0)
-    for _ in 0 ..< 100_000 {
+    for _ in 0 ..< 50_000 {
       x += Double.random(in: -1000...1000, using: &generator)
     }
     blackHole(x)