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The Go programming language
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For many uses of math/big, most numbers are small in practice. Prior to this change, big.NewInt allocated a minimum of five Words: one to hold the value, and four as extra capacity. In most cases, this extra capacity is waste. Worse, allocating a single Word uses a fast malloc path for tiny allocs; allocating five Words is more expensive in CPU as well as memory. This change is a simple fix: Treat a request for one Word at its word. I experimented with more complicated fixes and did not find anything that outperformed this easy fix. On some real world programs, this is a clear win. The compiler: name old alloc/op new alloc/op delta Template 37.1MB ± 0% 37.0MB ± 0% -0.23% (p=0.008 n=5+5) Unicode 29.2MB ± 0% 28.5MB ± 0% -2.48% (p=0.008 n=5+5) GoTypes 133MB ± 0% 133MB ± 0% -0.05% (p=0.008 n=5+5) Compiler 628MB ± 0% 628MB ± 0% -0.06% (p=0.008 n=5+5) SSA 2.04GB ± 0% 2.03GB ± 0% -0.14% (p=0.008 n=5+5) Flate 24.7MB ± 0% 24.6MB ± 0% -0.23% (p=0.008 n=5+5) GoParser 29.6MB ± 0% 29.6MB ± 0% -0.07% (p=0.008 n=5+5) Reflect 82.3MB ± 0% 82.2MB ± 0% -0.05% (p=0.008 n=5+5) Tar 36.2MB ± 0% 36.2MB ± 0% -0.12% (p=0.008 n=5+5) XML 49.5MB ± 0% 49.4MB ± 0% -0.23% (p=0.008 n=5+5) [Geo mean] 85.1MB 84.8MB -0.37% name old allocs/op new allocs/op delta Template 364k ± 0% 364k ± 0% ~ (p=0.476 n=5+5) Unicode 341k ± 0% 341k ± 0% ~ (p=0.690 n=5+5) GoTypes 1.37M ± 0% 1.37M ± 0% ~ (p=0.444 n=5+5) Compiler 5.50M ± 0% 5.50M ± 0% +0.02% (p=0.008 n=5+5) SSA 16.0M ± 0% 16.0M ± 0% +0.01% (p=0.008 n=5+5) Flate 238k ± 0% 238k ± 0% ~ (p=0.222 n=5+5) GoParser 305k ± 0% 305k ± 0% ~ (p=0.841 n=5+5) Reflect 976k ± 0% 976k ± 0% ~ (p=0.222 n=5+5) Tar 354k ± 0% 354k ± 0% ~ (p=0.103 n=5+5) XML 450k ± 0% 450k ± 0% ~ (p=0.151 n=5+5) [Geo mean] 837k 837k +0.01% go.skylark.net (at ea6d2813de75ded8d157b9540bc3d3ad0b688623): name old alloc/op new alloc/op delta Hashtable-8 456kB ± 0% 299kB ± 0% -34.33% (p=0.000 n=9+9) /bench_builtin_method-8 220kB ± 0% 190kB ± 0% -13.55% (p=0.000 n=9+10) name old allocs/op new allocs/op delta Hashtable-8 7.84k ± 0% 7.84k ± 0% ~ (all equal) /bench_builtin_method-8 7.49k ± 0% 7.49k ± 0% ~ (all equal) The math/big benchmarks are messy, which is predictable, since they naturally exercise the bigger-than-one-word code more. Also worth noting is that many of the benchmarks have very high variance. I've omitted the opVV and opVW benchmarks, as they are unrelated. name old time/op new time/op delta DecimalConversion-8 92.5µs ± 1% 90.6µs ± 0% -2.12% (p=0.000 n=17+19) FloatString/100-8 867ns ± 0% 871ns ± 0% +0.50% (p=0.000 n=18+18) FloatString/1000-8 26.4µs ± 1% 26.5µs ± 1% ~ (p=0.396 n=20+19) FloatString/10000-8 2.15ms ± 2% 2.16ms ± 2% ~ (p=0.089 n=19+20) FloatString/100000-8 209ms ± 1% 209ms ± 1% ~ (p=0.583 n=19+19) FloatAdd/10-8 63.5ns ± 2% 64.1ns ± 6% ~ (p=0.389 n=19+19) FloatAdd/100-8 66.0ns ± 2% 65.8ns ± 2% ~ (p=0.825 n=20+20) FloatAdd/1000-8 93.9ns ± 1% 94.3ns ± 1% ~ (p=0.273 n=19+20) FloatAdd/10000-8 347ns ± 2% 342ns ± 1% -1.50% (p=0.000 n=18+18) FloatAdd/100000-8 2.78µs ± 1% 2.78µs ± 2% ~ (p=0.961 n=20+19) FloatSub/10-8 56.9ns ± 2% 57.8ns ± 3% +1.59% (p=0.001 n=19+19) FloatSub/100-8 58.2ns ± 2% 58.9ns ± 2% +1.25% (p=0.004 n=20+20) FloatSub/1000-8 74.9ns ± 1% 74.4ns ± 1% -0.76% (p=0.000 n=19+20) FloatSub/10000-8 223ns ± 1% 220ns ± 2% -1.29% (p=0.000 n=16+20) FloatSub/100000-8 1.66µs ± 1% 1.66µs ± 2% ~ (p=0.147 n=20+20) ParseFloatSmallExp-8 8.38µs ± 0% 8.59µs ± 0% +2.48% (p=0.000 n=19+19) ParseFloatLargeExp-8 31.1µs ± 0% 32.0µs ± 0% +3.04% (p=0.000 n=16+17) GCD10x10/WithoutXY-8 115ns ± 1% 99ns ± 3% -14.07% (p=0.000 n=20+20) GCD10x10/WithXY-8 322ns ± 0% 312ns ± 0% -3.11% (p=0.000 n=18+13) GCD10x100/WithoutXY-8 233ns ± 1% 219ns ± 1% -5.73% (p=0.000 n=19+17) GCD10x100/WithXY-8 709ns ± 0% 759ns ± 0% +7.04% (p=0.000 n=19+19) GCD10x1000/WithoutXY-8 653ns ± 1% 642ns ± 1% -1.69% (p=0.000 n=17+20) GCD10x1000/WithXY-8 1.35µs ± 0% 1.35µs ± 1% ~ (p=0.255 n=20+16) GCD10x10000/WithoutXY-8 4.57µs ± 1% 4.61µs ± 1% +0.95% (p=0.000 n=18+17) GCD10x10000/WithXY-8 6.82µs ± 0% 6.84µs ± 0% +0.27% (p=0.000 n=16+17) GCD10x100000/WithoutXY-8 43.9µs ± 1% 44.0µs ± 1% +0.28% (p=0.000 n=18+17) GCD10x100000/WithXY-8 60.6µs ± 0% 60.6µs ± 0% ~ (p=0.907 n=18+18) GCD100x100/WithoutXY-8 1.13µs ± 0% 1.21µs ± 0% +6.39% (p=0.000 n=19+19) GCD100x100/WithXY-8 1.82µs ± 0% 1.92µs ± 0% +5.24% (p=0.000 n=19+17) GCD100x1000/WithoutXY-8 2.00µs ± 0% 2.03µs ± 1% +1.61% (p=0.000 n=18+16) GCD100x1000/WithXY-8 3.22µs ± 0% 3.20µs ± 1% -0.83% (p=0.000 n=19+19) GCD100x10000/WithoutXY-8 9.28µs ± 1% 9.17µs ± 1% -1.25% (p=0.000 n=18+19) GCD100x10000/WithXY-8 13.5µs ± 0% 13.3µs ± 0% -1.12% (p=0.000 n=18+19) GCD100x100000/WithoutXY-8 80.4µs ± 0% 78.6µs ± 0% -2.25% (p=0.000 n=19+19) GCD100x100000/WithXY-8 114µs ± 0% 112µs ± 0% -1.46% (p=0.000 n=19+17) GCD1000x1000/WithoutXY-8 12.9µs ± 1% 12.9µs ± 2% -0.50% (p=0.014 n=20+19) GCD1000x1000/WithXY-8 19.6µs ± 1% 19.6µs ± 2% -0.28% (p=0.040 n=17+18) GCD1000x10000/WithoutXY-8 22.4µs ± 0% 22.4µs ± 2% ~ (p=0.220 n=19+19) GCD1000x10000/WithXY-8 57.0µs ± 0% 56.5µs ± 0% -0.87% (p=0.000 n=20+20) GCD1000x100000/WithoutXY-8 116µs ± 0% 115µs ± 0% -0.49% (p=0.000 n=18+19) GCD1000x100000/WithXY-8 410µs ± 0% 411µs ± 0% ~ (p=0.052 n=19+19) GCD10000x10000/WithoutXY-8 247µs ± 1% 244µs ± 1% -0.92% (p=0.000 n=19+19) GCD10000x10000/WithXY-8 476µs ± 1% 473µs ± 1% -0.48% (p=0.009 n=19+19) GCD10000x100000/WithoutXY-8 573µs ± 1% 571µs ± 1% -0.45% (p=0.012 n=20+20) GCD10000x100000/WithXY-8 3.35ms ± 1% 3.35ms ± 1% ~ (p=0.444 n=20+19) GCD100000x100000/WithoutXY-8 12.0ms ± 2% 11.9ms ± 2% ~ (p=0.276 n=18+20) GCD100000x100000/WithXY-8 27.3ms ± 1% 27.3ms ± 1% ~ (p=0.792 n=20+19) Hilbert-8 672µs ± 0% 611µs ± 0% -9.02% (p=0.000 n=19+19) Binomial-8 1.40µs ± 0% 1.18µs ± 0% -15.69% (p=0.000 n=16+14) QuoRem-8 2.20µs ± 1% 2.17µs ± 1% -1.13% (p=0.000 n=19+19) Exp-8 4.10ms ± 1% 4.11ms ± 1% ~ (p=0.296 n=20+19) Exp2-8 4.11ms ± 1% 4.12ms ± 1% ~ (p=0.429 n=20+20) Bitset-8 8.67ns ± 6% 8.74ns ± 4% ~ (p=0.139 n=19+17) BitsetNeg-8 43.6ns ± 1% 43.8ns ± 2% +0.61% (p=0.036 n=20+20) BitsetOrig-8 77.5ns ± 1% 68.4ns ± 1% -11.77% (p=0.000 n=19+20) BitsetNegOrig-8 145ns ± 1% 141ns ± 1% -2.87% (p=0.000 n=19+20) ModSqrt225_Tonelli-8 324µs ± 1% 324µs ± 1% ~ (p=0.409 n=18+20) ModSqrt225_3Mod4-8 98.9µs ± 1% 99.1µs ± 1% ~ (p=0.298 n=19+18) ModSqrt231_Tonelli-8 337µs ± 1% 337µs ± 1% ~ (p=0.718 n=20+18) ModSqrt231_5Mod8-8 115µs ± 1% 114µs ± 1% -0.22% (p=0.050 n=20+20) ModInverse-8 895ns ± 0% 869ns ± 1% -2.83% (p=0.000 n=17+17) Sqrt-8 28.1µs ± 1% 28.1µs ± 0% -0.28% (p=0.000 n=16+20) IntSqr/1-8 10.8ns ± 3% 10.5ns ± 3% -2.51% (p=0.000 n=19+17) IntSqr/2-8 30.5ns ± 2% 30.3ns ± 4% -0.71% (p=0.035 n=18+18) IntSqr/3-8 40.1ns ± 1% 40.1ns ± 1% ~ (p=0.710 n=20+17) IntSqr/5-8 65.3ns ± 1% 65.4ns ± 2% ~ (p=0.744 n=19+19) IntSqr/8-8 101ns ± 1% 102ns ± 0% ~ (p=0.234 n=19+20) IntSqr/10-8 138ns ± 0% 138ns ± 2% ~ (p=0.827 n=18+18) IntSqr/20-8 378ns ± 1% 378ns ± 1% ~ (p=0.479 n=18+18) IntSqr/30-8 637ns ± 0% 638ns ± 1% ~ (p=0.051 n=18+20) IntSqr/50-8 1.34µs ± 2% 1.34µs ± 1% ~ (p=0.970 n=18+19) IntSqr/80-8 2.78µs ± 0% 2.78µs ± 1% -0.18% (p=0.006 n=19+17) IntSqr/100-8 3.98µs ± 0% 3.98µs ± 0% ~ (p=0.057 n=17+19) IntSqr/200-8 13.5µs ± 0% 13.5µs ± 1% -0.33% (p=0.000 n=19+17) IntSqr/300-8 25.3µs ± 1% 25.3µs ± 1% ~ (p=0.361 n=19+20) IntSqr/500-8 62.9µs ± 0% 62.9µs ± 1% ~ (p=0.899 n=17+17) IntSqr/800-8 128µs ± 1% 127µs ± 1% -0.32% (p=0.016 n=18+20) IntSqr/1000-8 192µs ± 0% 192µs ± 1% ~ (p=0.916 n=17+18) Div/20/10-8 34.9ns ± 2% 35.6ns ± 1% +2.01% (p=0.000 n=20+20) Div/200/100-8 218ns ± 1% 215ns ± 2% -1.43% (p=0.000 n=18+18) Div/2000/1000-8 1.16µs ± 1% 1.15µs ± 1% -1.04% (p=0.000 n=19+20) Div/20000/10000-8 35.7µs ± 1% 35.4µs ± 1% -0.69% (p=0.000 n=19+18) Div/200000/100000-8 2.89ms ± 1% 2.88ms ± 1% -0.62% (p=0.007 n=19+20) Mul-8 9.28ms ± 1% 9.27ms ± 1% ~ (p=0.563 n=18+18) ZeroShifts/Shl-8 712ns ± 6% 716ns ± 7% ~ (p=0.597 n=20+20) ZeroShifts/ShlSame-8 4.00ns ± 1% 4.06ns ± 5% ~ (p=0.162 n=18+20) ZeroShifts/Shr-8 714ns ±10% 1285ns ±156% ~ (p=0.250 n=20+20) ZeroShifts/ShrSame-8 4.00ns ± 1% 4.09ns ±10% +2.34% (p=0.048 n=16+19) Exp3Power/0x10-8 154ns ± 0% 159ns ±13% ~ (p=0.197 n=14+20) Exp3Power/0x40-8 171ns ± 1% 175ns ± 8% ~ (p=0.058 n=16+19) Exp3Power/0x100-8 287ns ± 0% 316ns ± 4% +10.03% (p=0.000 n=17+19) Exp3Power/0x400-8 698ns ± 1% 801ns ± 6% +14.75% (p=0.000 n=19+20) Exp3Power/0x1000-8 2.87µs ± 0% 3.65µs ± 6% +27.24% (p=0.000 n=18+18) Exp3Power/0x4000-8 21.9µs ± 1% 28.7µs ± 8% +31.09% (p=0.000 n=18+20) Exp3Power/0x10000-8 204µs ± 0% 267µs ± 9% +30.81% (p=0.000 n=20+20) Exp3Power/0x40000-8 1.86ms ± 0% 2.26ms ± 5% +21.68% (p=0.000 n=18+19) Exp3Power/0x100000-8 17.5ms ± 1% 20.7ms ± 7% +18.39% (p=0.000 n=19+20) Exp3Power/0x400000-8 156ms ± 0% 172ms ± 6% +10.54% (p=0.000 n=19+20) Fibo-8 26.9ms ± 1% 27.5ms ± 3% +2.32% (p=0.000 n=19+19) NatSqr/1-8 31.0ns ± 4% 39.5ns ±29% +27.25% (p=0.000 n=20+19) NatSqr/2-8 54.1ns ± 1% 69.0ns ±28% +27.52% (p=0.000 n=20+20) NatSqr/3-8 66.6ns ± 1% 83.0ns ±25% +24.59% (p=0.000 n=20+20) NatSqr/5-8 97.1ns ± 1% 119.9ns ±12% +23.50% (p=0.000 n=16+20) NatSqr/8-8 138ns ± 1% 171ns ± 9% +24.20% (p=0.000 n=19+20) NatSqr/10-8 182ns ± 0% 225ns ± 9% +23.50% (p=0.000 n=16+20) NatSqr/20-8 447ns ± 1% 624ns ± 6% +39.64% (p=0.000 n=19+19) NatSqr/30-8 736ns ± 2% 986ns ± 9% +33.94% (p=0.000 n=19+20) NatSqr/50-8 1.51µs ± 2% 1.97µs ± 9% +30.42% (p=0.000 n=20+20) NatSqr/80-8 3.03µs ± 1% 3.67µs ± 7% +21.08% (p=0.000 n=20+20) NatSqr/100-8 4.31µs ± 1% 5.20µs ± 7% +20.52% (p=0.000 n=19+20) NatSqr/200-8 14.2µs ± 0% 16.3µs ± 4% +14.92% (p=0.000 n=19+20) NatSqr/300-8 27.8µs ± 1% 33.2µs ± 7% +19.28% (p=0.000 n=20+18) NatSqr/500-8 66.6µs ± 1% 74.5µs ± 3% +11.87% (p=0.000 n=18+18) NatSqr/800-8 135µs ± 1% 165µs ± 7% +22.33% (p=0.000 n=20+20) NatSqr/1000-8 200µs ± 0% 228µs ± 3% +14.39% (p=0.000 n=19+20) NatSetBytes/8-8 8.87ns ± 4% 8.77ns ± 2% -1.17% (p=0.020 n=20+16) NatSetBytes/24-8 38.6ns ± 3% 49.5ns ±29% +28.32% (p=0.000 n=18+19) NatSetBytes/128-8 75.2ns ± 1% 120.7ns ±29% +60.60% (p=0.000 n=17+20) NatSetBytes/7-8 16.2ns ± 2% 16.5ns ± 2% +1.76% (p=0.000 n=20+20) NatSetBytes/23-8 46.5ns ± 1% 60.2ns ±24% +29.59% (p=0.000 n=20+20) NatSetBytes/127-8 83.1ns ± 1% 118.2ns ±20% +42.33% (p=0.000 n=18+20) ScanPi-8 89.1µs ± 1% 117.4µs ±12% +31.75% (p=0.000 n=18+20) StringPiParallel-8 35.1µs ± 9% 40.2µs ±12% +14.53% (p=0.000 n=20+20) Scan/10/Base2-8 410ns ±14% 429ns ±10% +4.47% (p=0.018 n=19+20) Scan/100/Base2-8 3.05µs ±20% 2.97µs ±14% ~ (p=0.449 n=20+20) Scan/1000/Base2-8 29.3µs ± 8% 30.1µs ±23% ~ (p=0.355 n=20+20) Scan/10000/Base2-8 402µs ±13% 395µs ±14% ~ (p=0.355 n=20+20) Scan/100000/Base2-8 11.8ms ±10% 11.6ms ± 1% ~ (p=0.245 n=17+18) Scan/10/Base8-8 194ns ± 6% 196ns ±12% ~ (p=0.829 n=20+19) Scan/100/Base8-8 1.11µs ±15% 1.11µs ±12% ~ (p=0.743 n=20+20) Scan/1000/Base8-8 11.7µs ±10% 11.7µs ±12% ~ (p=0.904 n=20+20) Scan/10000/Base8-8 209µs ± 7% 210µs ± 8% ~ (p=0.478 n=20+20) Scan/100000/Base8-8 10.6ms ± 7% 10.4ms ± 6% ~ (p=0.112 n=20+18) Scan/10/Base10-8 182ns ±12% 188ns ±11% +3.52% (p=0.044 n=20+20) Scan/100/Base10-8 1.01µs ± 8% 1.00µs ±13% ~ (p=0.588 n=20+20) Scan/1000/Base10-8 10.7µs ±20% 10.6µs ±14% ~ (p=0.560 n=20+20) Scan/10000/Base10-8 195µs ±10% 194µs ± 9% ~ (p=0.883 n=20+20) Scan/100000/Base10-8 10.6ms ± 2% 10.6ms ± 2% ~ (p=0.495 n=20+20) Scan/10/Base16-8 166ns ±10% 174ns ±17% ~ (p=0.072 n=20+20) Scan/100/Base16-8 836ns ±10% 826ns ±12% ~ (p=0.562 n=20+17) Scan/1000/Base16-8 8.96µs ±13% 8.65µs ± 9% ~ (p=0.203 n=20+18) Scan/10000/Base16-8 198µs ± 3% 198µs ± 5% ~ (p=0.718 n=20+20) Scan/100000/Base16-8 11.1ms ± 3% 11.0ms ± 4% ~ (p=0.512 n=20+20) String/10/Base2-8 88.1ns ± 7% 94.1ns ±11% +6.80% (p=0.000 n=19+20) String/100/Base2-8 577ns ± 4% 598ns ± 5% +3.72% (p=0.000 n=20+20) String/1000/Base2-8 5.25µs ± 2% 5.62µs ± 5% +7.04% (p=0.000 n=19+20) String/10000/Base2-8 55.6µs ± 1% 60.1µs ± 2% +8.12% (p=0.000 n=19+19) String/100000/Base2-8 519µs ± 2% 560µs ± 2% +7.91% (p=0.000 n=18+17) String/10/Base8-8 52.2ns ± 8% 53.3ns ±12% ~ (p=0.188 n=20+18) String/100/Base8-8 218ns ± 3% 232ns ±10% +6.66% (p=0.000 n=20+20) String/1000/Base8-8 1.84µs ± 3% 1.94µs ± 4% +5.07% (p=0.000 n=20+18) String/10000/Base8-8 18.1µs ± 2% 19.1µs ± 3% +5.84% (p=0.000 n=20+19) String/100000/Base8-8 184µs ± 2% 197µs ± 1% +7.15% (p=0.000 n=19+19) String/10/Base10-8 158ns ± 7% 146ns ± 6% -7.65% (p=0.000 n=20+19) String/100/Base10-8 807ns ± 2% 845ns ± 4% +4.79% (p=0.000 n=20+19) String/1000/Base10-8 3.99µs ± 3% 3.99µs ± 7% ~ (p=0.920 n=20+20) String/10000/Base10-8 20.8µs ± 6% 22.1µs ±10% +6.11% (p=0.000 n=19+20) String/100000/Base10-8 5.60ms ± 2% 5.59ms ± 2% ~ (p=0.749 n=20+19) String/10/Base16-8 49.0ns ±13% 49.3ns ±16% ~ (p=0.581 n=19+20) String/100/Base16-8 173ns ± 5% 185ns ± 6% +6.63% (p=0.000 n=20+18) String/1000/Base16-8 1.38µs ± 3% 1.49µs ±10% +8.27% (p=0.000 n=19+20) String/10000/Base16-8 13.5µs ± 2% 14.5µs ± 3% +7.08% (p=0.000 n=20+20) String/100000/Base16-8 138µs ± 4% 148µs ± 4% +7.57% (p=0.000 n=19+20) LeafSize/0-8 2.74ms ± 1% 2.79ms ± 2% +2.00% (p=0.000 n=19+19) LeafSize/1-8 24.8µs ± 4% 26.1µs ± 8% +5.33% (p=0.000 n=18+19) LeafSize/2-8 24.9µs ± 7% 25.0µs ± 8% ~ (p=0.989 n=20+19) LeafSize/3-8 97.6µs ± 3% 100.2µs ± 5% +2.66% (p=0.001 n=20+19) LeafSize/4-8 25.2µs ± 5% 25.4µs ± 5% ~ (p=0.173 n=19+20) LeafSize/5-8 118µs ± 2% 119µs ± 5% ~ (p=0.478 n=20+20) LeafSize/6-8 97.6µs ± 3% 100.1µs ± 8% +2.65% (p=0.021 n=20+19) LeafSize/7-8 65.6µs ± 5% 67.5µs ± 6% +2.92% (p=0.003 n=20+19) LeafSize/8-8 25.5µs ± 5% 25.6µs ± 6% ~ (p=0.461 n=19+20) LeafSize/9-8 134µs ± 4% 136µs ± 5% ~ (p=0.194 n=19+20) LeafSize/10-8 119µs ± 3% 122µs ± 3% +2.52% (p=0.000 n=20+19) LeafSize/11-8 115µs ± 5% 116µs ± 5% ~ (p=0.158 n=20+19) LeafSize/12-8 97.4µs ± 4% 100.3µs ± 5% +2.91% (p=0.003 n=19+20) LeafSize/13-8 93.1µs ± 4% 93.0µs ± 6% ~ (p=0.698 n=20+20) LeafSize/14-8 67.0µs ± 3% 69.7µs ± 6% +4.10% (p=0.000 n=20+20) LeafSize/15-8 48.3µs ± 2% 49.3µs ± 6% +1.91% (p=0.014 n=19+20) LeafSize/16-8 25.6µs ± 5% 25.6µs ± 6% ~ (p=0.947 n=20+20) LeafSize/32-8 30.1µs ± 4% 30.3µs ± 5% ~ (p=0.685 n=18+19) LeafSize/64-8 53.4µs ± 2% 54.0µs ± 3% ~ (p=0.053 n=19+19) ProbablyPrime/n=0-8 3.59ms ± 1% 3.55ms ± 1% -1.12% (p=0.000 n=20+18) ProbablyPrime/n=1-8 4.21ms ± 2% 4.17ms ± 2% -0.73% (p=0.018 n=20+19) ProbablyPrime/n=5-8 6.74ms ± 1% 6.72ms ± 1% ~ (p=0.102 n=20+20) ProbablyPrime/n=10-8 9.91ms ± 1% 9.89ms ± 2% ~ (p=0.322 n=19+20) ProbablyPrime/n=20-8 16.2ms ± 1% 16.1ms ± 2% -0.52% (p=0.006 n=19+19) ProbablyPrime/Lucas-8 2.94ms ± 1% 2.95ms ± 1% +0.52% (p=0.002 n=18+19) ProbablyPrime/MillerRabinBase2-8 641µs ± 2% 640µs ± 2% ~ (p=0.607 n=19+20) FloatSqrt/64-8 653ns ± 5% 704ns ± 5% +7.82% (p=0.000 n=19+20) FloatSqrt/128-8 1.32µs ± 3% 1.42µs ± 5% +7.29% (p=0.000 n=18+20) FloatSqrt/256-8 1.44µs ± 2% 1.45µs ± 4% ~ (p=0.089 n=19+19) FloatSqrt/1000-8 3.36µs ± 3% 3.42µs ± 5% +1.82% (p=0.012 n=20+20) FloatSqrt/10000-8 25.5µs ± 2% 27.5µs ± 7% +7.91% (p=0.000 n=18+19) FloatSqrt/100000-8 629µs ± 6% 663µs ± 9% +5.32% (p=0.000 n=18+20) FloatSqrt/1000000-8 46.4ms ± 2% 46.6ms ± 5% ~ (p=0.351 n=20+19) [Geo mean] 9.60µs 10.01µs +4.28% name old alloc/op new alloc/op delta DecimalConversion-8 54.0kB ± 0% 43.6kB ± 0% -19.40% (p=0.000 n=20+20) FloatString/100-8 400B ± 0% 400B ± 0% ~ (all equal) FloatString/1000-8 3.10kB ± 0% 3.10kB ± 0% ~ (all equal) FloatString/10000-8 52.1kB ± 0% 52.1kB ± 0% ~ (p=0.153 n=20+20) FloatString/100000-8 582kB ± 0% 582kB ± 0% ~ (all equal) FloatAdd/10-8 0.00B 0.00B ~ (all equal) FloatAdd/100-8 0.00B 0.00B ~ (all equal) FloatAdd/1000-8 0.00B 0.00B ~ (all equal) FloatAdd/10000-8 0.00B 0.00B ~ (all equal) FloatAdd/100000-8 0.00B 0.00B ~ (all equal) FloatSub/10-8 0.00B 0.00B ~ (all equal) FloatSub/100-8 0.00B 0.00B ~ (all equal) FloatSub/1000-8 0.00B 0.00B ~ (all equal) FloatSub/10000-8 0.00B 0.00B ~ (all equal) FloatSub/100000-8 0.00B 0.00B ~ (all equal) ParseFloatSmallExp-8 4.18kB ± 0% 3.60kB ± 0% -13.79% (p=0.000 n=20+20) ParseFloatLargeExp-8 18.9kB ± 0% 19.3kB ± 0% +2.25% (p=0.000 n=20+20) GCD10x10/WithoutXY-8 96.0B ± 0% 16.0B ± 0% -83.33% (p=0.000 n=20+20) GCD10x10/WithXY-8 240B ± 0% 88B ± 0% -63.33% (p=0.000 n=20+20) GCD10x100/WithoutXY-8 192B ± 0% 112B ± 0% -41.67% (p=0.000 n=20+20) GCD10x100/WithXY-8 464B ± 0% 424B ± 0% -8.62% (p=0.000 n=20+20) GCD10x1000/WithoutXY-8 416B ± 0% 336B ± 0% -19.23% (p=0.000 n=20+20) GCD10x1000/WithXY-8 1.25kB ± 0% 1.10kB ± 0% -12.18% (p=0.000 n=20+20) GCD10x10000/WithoutXY-8 2.91kB ± 0% 2.83kB ± 0% -2.75% (p=0.000 n=20+20) GCD10x10000/WithXY-8 8.70kB ± 0% 8.55kB ± 0% -1.76% (p=0.000 n=16+16) GCD10x100000/WithoutXY-8 27.2kB ± 0% 27.2kB ± 0% -0.29% (p=0.000 n=20+20) GCD10x100000/WithXY-8 82.4kB ± 0% 82.3kB ± 0% -0.17% (p=0.000 n=20+19) GCD100x100/WithoutXY-8 288B ± 0% 384B ± 0% +33.33% (p=0.000 n=20+20) GCD100x100/WithXY-8 464B ± 0% 576B ± 0% +24.14% (p=0.000 n=20+20) GCD100x1000/WithoutXY-8 640B ± 0% 688B ± 0% +7.50% (p=0.000 n=20+20) GCD100x1000/WithXY-8 1.52kB ± 0% 1.46kB ± 0% -3.68% (p=0.000 n=20+20) GCD100x10000/WithoutXY-8 4.24kB ± 0% 4.29kB ± 0% +1.13% (p=0.000 n=20+20) GCD100x10000/WithXY-8 11.1kB ± 0% 11.0kB ± 0% -0.51% (p=0.000 n=15+20) GCD100x100000/WithoutXY-8 40.9kB ± 0% 40.9kB ± 0% +0.12% (p=0.000 n=20+19) GCD100x100000/WithXY-8 110kB ± 0% 109kB ± 0% -0.08% (p=0.000 n=20+20) GCD1000x1000/WithoutXY-8 1.22kB ± 0% 1.06kB ± 0% -13.16% (p=0.000 n=20+20) GCD1000x1000/WithXY-8 2.37kB ± 0% 2.11kB ± 0% -10.83% (p=0.000 n=20+20) GCD1000x10000/WithoutXY-8 4.71kB ± 0% 4.63kB ± 0% -1.70% (p=0.000 n=20+19) GCD1000x10000/WithXY-8 28.2kB ± 0% 28.0kB ± 0% -0.43% (p=0.000 n=20+15) GCD1000x100000/WithoutXY-8 41.3kB ± 0% 41.2kB ± 0% -0.20% (p=0.000 n=20+16) GCD1000x100000/WithXY-8 301kB ± 0% 301kB ± 0% -0.13% (p=0.000 n=20+20) GCD10000x10000/WithoutXY-8 8.64kB ± 0% 8.48kB ± 0% -1.85% (p=0.000 n=20+20) GCD10000x10000/WithXY-8 57.2kB ± 0% 57.7kB ± 0% +0.80% (p=0.000 n=20+20) GCD10000x100000/WithoutXY-8 43.8kB ± 0% 43.7kB ± 0% -0.19% (p=0.000 n=20+18) GCD10000x100000/WithXY-8 2.08MB ± 0% 2.08MB ± 0% -0.02% (p=0.000 n=15+19) GCD100000x100000/WithoutXY-8 81.6kB ± 0% 81.4kB ± 0% -0.20% (p=0.000 n=20+20) GCD100000x100000/WithXY-8 4.32MB ± 0% 4.33MB ± 0% +0.12% (p=0.000 n=20+20) Hilbert-8 653kB ± 0% 313kB ± 0% -52.13% (p=0.000 n=19+20) Binomial-8 1.82kB ± 0% 1.02kB ± 0% -43.86% (p=0.000 n=20+20) QuoRem-8 0.00B 0.00B ~ (all equal) Exp-8 11.1kB ± 0% 11.0kB ± 0% -0.34% (p=0.000 n=19+20) Exp2-8 11.3kB ± 0% 11.3kB ± 0% -0.35% (p=0.000 n=19+20) Bitset-8 0.00B 0.00B ~ (all equal) BitsetNeg-8 0.00B 0.00B ~ (all equal) BitsetOrig-8 103B ± 0% 63B ± 0% -38.83% (p=0.000 n=20+20) BitsetNegOrig-8 215B ± 0% 175B ± 0% -18.60% (p=0.000 n=20+20) ModSqrt225_Tonelli-8 11.3kB ± 0% 11.0kB ± 0% -2.76% (p=0.000 n=20+17) ModSqrt225_3Mod4-8 3.57kB ± 0% 3.53kB ± 0% -1.12% (p=0.000 n=20+20) ModSqrt231_Tonelli-8 11.0kB ± 0% 10.7kB ± 0% -2.55% (p=0.000 n=20+20) ModSqrt231_5Mod8-8 4.21kB ± 0% 4.09kB ± 0% -2.85% (p=0.000 n=16+20) ModInverse-8 1.44kB ± 0% 1.28kB ± 0% -11.11% (p=0.000 n=20+20) Sqrt-8 6.00kB ± 0% 6.00kB ± 0% ~ (all equal) IntSqr/1-8 0.00B 0.00B ~ (all equal) IntSqr/2-8 0.00B 0.00B ~ (all equal) IntSqr/3-8 0.00B 0.00B ~ (all equal) IntSqr/5-8 0.00B 0.00B ~ (all equal) IntSqr/8-8 0.00B 0.00B ~ (all equal) IntSqr/10-8 0.00B 0.00B ~ (all equal) IntSqr/20-8 320B ± 0% 320B ± 0% ~ (all equal) IntSqr/30-8 480B ± 0% 480B ± 0% ~ (all equal) IntSqr/50-8 896B ± 0% 896B ± 0% ~ (all equal) IntSqr/80-8 1.28kB ± 0% 1.28kB ± 0% ~ (all equal) IntSqr/100-8 1.79kB ± 0% 1.79kB ± 0% ~ (all equal) IntSqr/200-8 3.20kB ± 0% 3.20kB ± 0% ~ (all equal) IntSqr/300-8 8.06kB ± 0% 8.06kB ± 0% ~ (all equal) IntSqr/500-8 12.3kB ± 0% 12.3kB ± 0% ~ (all equal) IntSqr/800-8 28.8kB ± 0% 28.8kB ± 0% ~ (all equal) IntSqr/1000-8 36.9kB ± 0% 36.9kB ± 0% ~ (all equal) Div/20/10-8 0.00B 0.00B ~ (all equal) Div/200/100-8 0.00B 0.00B ~ (all equal) Div/2000/1000-8 0.00B 0.00B ~ (all equal) Div/20000/10000-8 0.00B 0.00B ~ (all equal) Div/200000/100000-8 690B ± 0% 690B ± 0% ~ (all equal) Mul-8 565kB ± 0% 565kB ± 0% ~ (all equal) ZeroShifts/Shl-8 6.53kB ± 0% 6.53kB ± 0% ~ (all equal) ZeroShifts/ShlSame-8 0.00B 0.00B ~ (all equal) ZeroShifts/Shr-8 6.53kB ± 0% 6.53kB ± 0% ~ (all equal) ZeroShifts/ShrSame-8 0.00B 0.00B ~ (all equal) Exp3Power/0x10-8 192B ± 0% 112B ± 0% -41.67% (p=0.000 n=20+20) Exp3Power/0x40-8 192B ± 0% 112B ± 0% -41.67% (p=0.000 n=20+20) Exp3Power/0x100-8 288B ± 0% 208B ± 0% -27.78% (p=0.000 n=20+20) Exp3Power/0x400-8 672B ± 0% 592B ± 0% -11.90% (p=0.000 n=20+20) Exp3Power/0x1000-8 3.33kB ± 0% 3.25kB ± 0% -2.40% (p=0.000 n=20+20) Exp3Power/0x4000-8 13.8kB ± 0% 13.7kB ± 0% -0.58% (p=0.000 n=20+20) Exp3Power/0x10000-8 117kB ± 0% 117kB ± 0% -0.07% (p=0.000 n=20+20) Exp3Power/0x40000-8 755kB ± 0% 755kB ± 0% -0.01% (p=0.000 n=19+20) Exp3Power/0x100000-8 5.22MB ± 0% 5.22MB ± 0% -0.00% (p=0.000 n=20+20) Exp3Power/0x400000-8 39.8MB ± 0% 39.8MB ± 0% -0.00% (p=0.000 n=20+19) Fibo-8 3.09MB ± 0% 3.08MB ± 0% -0.28% (p=0.000 n=20+16) NatSqr/1-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) NatSqr/2-8 64.0B ± 0% 64.0B ± 0% ~ (all equal) NatSqr/3-8 80.0B ± 0% 80.0B ± 0% ~ (all equal) NatSqr/5-8 112B ± 0% 112B ± 0% ~ (all equal) NatSqr/8-8 160B ± 0% 160B ± 0% ~ (all equal) NatSqr/10-8 192B ± 0% 192B ± 0% ~ (all equal) NatSqr/20-8 672B ± 0% 672B ± 0% ~ (all equal) NatSqr/30-8 992B ± 0% 992B ± 0% ~ (all equal) NatSqr/50-8 1.79kB ± 0% 1.79kB ± 0% ~ (all equal) NatSqr/80-8 2.69kB ± 0% 2.69kB ± 0% ~ (all equal) NatSqr/100-8 3.58kB ± 0% 3.58kB ± 0% ~ (all equal) NatSqr/200-8 6.66kB ± 0% 6.66kB ± 0% ~ (all equal) NatSqr/300-8 24.4kB ± 0% 24.4kB ± 0% ~ (all equal) NatSqr/500-8 36.9kB ± 0% 36.9kB ± 0% ~ (all equal) NatSqr/800-8 69.8kB ± 0% 69.8kB ± 0% ~ (all equal) NatSqr/1000-8 86.0kB ± 0% 86.0kB ± 0% ~ (all equal) NatSetBytes/8-8 0.00B 0.00B ~ (all equal) NatSetBytes/24-8 64.0B ± 0% 64.0B ± 0% ~ (all equal) NatSetBytes/128-8 160B ± 0% 160B ± 0% ~ (all equal) NatSetBytes/7-8 0.00B 0.00B ~ (all equal) NatSetBytes/23-8 64.0B ± 0% 64.0B ± 0% ~ (all equal) NatSetBytes/127-8 160B ± 0% 160B ± 0% ~ (all equal) ScanPi-8 75.4kB ± 0% 75.7kB ± 0% +0.41% (p=0.000 n=20+20) StringPiParallel-8 20.4kB ± 0% 20.4kB ± 0% ~ (p=0.223 n=20+20) Scan/10/Base2-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/100/Base2-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/1000/Base2-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/10000/Base2-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/100000/Base2-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/10/Base8-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/100/Base8-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/1000/Base8-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/10000/Base8-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/100000/Base8-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/10/Base10-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/100/Base10-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/1000/Base10-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/10000/Base10-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/100000/Base10-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/10/Base16-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/100/Base16-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/1000/Base16-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/10000/Base16-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Scan/100000/Base16-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) String/10/Base2-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) String/100/Base2-8 352B ± 0% 352B ± 0% ~ (all equal) String/1000/Base2-8 3.46kB ± 0% 3.46kB ± 0% ~ (all equal) String/10000/Base2-8 41.0kB ± 0% 41.0kB ± 0% ~ (all equal) String/100000/Base2-8 336kB ± 0% 336kB ± 0% ~ (all equal) String/10/Base8-8 16.0B ± 0% 16.0B ± 0% ~ (all equal) String/100/Base8-8 112B ± 0% 112B ± 0% ~ (all equal) String/1000/Base8-8 1.15kB ± 0% 1.15kB ± 0% ~ (all equal) String/10000/Base8-8 12.3kB ± 0% 12.3kB ± 0% ~ (all equal) String/100000/Base8-8 115kB ± 0% 115kB ± 0% ~ (all equal) String/10/Base10-8 64.0B ± 0% 24.0B ± 0% -62.50% (p=0.000 n=20+20) String/100/Base10-8 192B ± 0% 192B ± 0% ~ (all equal) String/1000/Base10-8 1.95kB ± 0% 1.95kB ± 0% ~ (all equal) String/10000/Base10-8 20.0kB ± 0% 20.0kB ± 0% ~ (p=0.983 n=19+20) String/100000/Base10-8 210kB ± 1% 211kB ± 1% +0.82% (p=0.000 n=19+20) String/10/Base16-8 16.0B ± 0% 16.0B ± 0% ~ (all equal) String/100/Base16-8 96.0B ± 0% 96.0B ± 0% ~ (all equal) String/1000/Base16-8 896B ± 0% 896B ± 0% ~ (all equal) String/10000/Base16-8 9.47kB ± 0% 9.47kB ± 0% ~ (all equal) String/100000/Base16-8 90.1kB ± 0% 90.1kB ± 0% ~ (all equal) LeafSize/0-8 16.9kB ± 0% 16.8kB ± 0% -0.44% (p=0.000 n=20+20) LeafSize/1-8 22.4kB ± 0% 22.3kB ± 0% -0.34% (p=0.000 n=20+19) LeafSize/2-8 22.4kB ± 0% 22.3kB ± 0% -0.34% (p=0.000 n=20+19) LeafSize/3-8 22.4kB ± 0% 22.3kB ± 0% -0.34% (p=0.000 n=20+17) LeafSize/4-8 22.4kB ± 0% 22.3kB ± 0% -0.34% (p=0.000 n=20+19) LeafSize/5-8 22.4kB ± 0% 22.3kB ± 0% -0.33% (p=0.000 n=20+20) LeafSize/6-8 22.3kB ± 0% 22.2kB ± 0% -0.34% (p=0.000 n=20+20) LeafSize/7-8 22.3kB ± 0% 22.2kB ± 0% -0.35% (p=0.000 n=20+20) LeafSize/8-8 22.3kB ± 0% 22.2kB ± 0% -0.34% (p=0.000 n=16+20) LeafSize/9-8 22.3kB ± 0% 22.2kB ± 0% -0.33% (p=0.000 n=20+20) LeafSize/10-8 22.3kB ± 0% 22.2kB ± 0% -0.33% (p=0.000 n=20+20) LeafSize/11-8 22.3kB ± 0% 22.2kB ± 0% -0.33% (p=0.000 n=20+20) LeafSize/12-8 22.3kB ± 0% 22.2kB ± 0% -0.33% (p=0.000 n=20+20) LeafSize/13-8 22.3kB ± 0% 22.2kB ± 0% -0.34% (p=0.000 n=20+15) LeafSize/14-8 22.3kB ± 0% 22.2kB ± 0% -0.33% (p=0.000 n=20+20) LeafSize/15-8 22.3kB ± 0% 22.2kB ± 0% -0.33% (p=0.000 n=20+20) LeafSize/16-8 22.3kB ± 0% 22.2kB ± 0% -0.33% (p=0.000 n=19+20) LeafSize/32-8 22.3kB ± 0% 22.2kB ± 0% -0.32% (p=0.000 n=20+20) LeafSize/64-8 21.8kB ± 0% 21.7kB ± 0% -0.33% (p=0.000 n=18+19) ProbablyPrime/n=0-8 15.3kB ± 0% 14.9kB ± 0% -2.35% (p=0.000 n=20+20) ProbablyPrime/n=1-8 21.0kB ± 0% 20.7kB ± 0% -1.71% (p=0.000 n=20+20) ProbablyPrime/n=5-8 43.4kB ± 0% 42.9kB ± 0% -1.20% (p=0.000 n=20+20) ProbablyPrime/n=10-8 71.5kB ± 0% 70.7kB ± 0% -1.01% (p=0.000 n=19+20) ProbablyPrime/n=20-8 127kB ± 0% 126kB ± 0% -0.88% (p=0.000 n=20+20) ProbablyPrime/Lucas-8 3.07kB ± 0% 2.79kB ± 0% -9.12% (p=0.000 n=20+20) ProbablyPrime/MillerRabinBase2-8 12.1kB ± 0% 12.0kB ± 0% -0.66% (p=0.000 n=20+20) FloatSqrt/64-8 416B ± 0% 360B ± 0% -13.46% (p=0.000 n=20+20) FloatSqrt/128-8 640B ± 0% 584B ± 0% -8.75% (p=0.000 n=20+20) FloatSqrt/256-8 512B ± 0% 472B ± 0% -7.81% (p=0.000 n=20+20) FloatSqrt/1000-8 1.47kB ± 0% 1.43kB ± 0% -2.72% (p=0.000 n=20+20) FloatSqrt/10000-8 18.2kB ± 0% 18.1kB ± 0% -0.22% (p=0.000 n=20+20) FloatSqrt/100000-8 204kB ± 0% 204kB ± 0% -0.02% (p=0.000 n=20+20) FloatSqrt/1000000-8 6.37MB ± 0% 6.37MB ± 0% -0.00% (p=0.000 n=19+20) [Geo mean] 3.42kB 3.24kB -5.33% name old allocs/op new allocs/op delta DecimalConversion-8 1.65k ± 0% 1.65k ± 0% ~ (all equal) FloatString/100-8 8.00 ± 0% 8.00 ± 0% ~ (all equal) FloatString/1000-8 9.00 ± 0% 9.00 ± 0% ~ (all equal) FloatString/10000-8 22.0 ± 0% 22.0 ± 0% ~ (all equal) FloatString/100000-8 136 ± 0% 136 ± 0% ~ (all equal) FloatAdd/10-8 0.00 0.00 ~ (all equal) FloatAdd/100-8 0.00 0.00 ~ (all equal) FloatAdd/1000-8 0.00 0.00 ~ (all equal) FloatAdd/10000-8 0.00 0.00 ~ (all equal) FloatAdd/100000-8 0.00 0.00 ~ (all equal) FloatSub/10-8 0.00 0.00 ~ (all equal) FloatSub/100-8 0.00 0.00 ~ (all equal) FloatSub/1000-8 0.00 0.00 ~ (all equal) FloatSub/10000-8 0.00 0.00 ~ (all equal) FloatSub/100000-8 0.00 0.00 ~ (all equal) ParseFloatSmallExp-8 110 ± 0% 130 ± 0% +18.18% (p=0.000 n=20+20) ParseFloatLargeExp-8 319 ± 0% 371 ± 0% +16.30% (p=0.000 n=20+20) GCD10x10/WithoutXY-8 2.00 ± 0% 2.00 ± 0% ~ (all equal) GCD10x10/WithXY-8 5.00 ± 0% 6.00 ± 0% +20.00% (p=0.000 n=20+20) GCD10x100/WithoutXY-8 4.00 ± 0% 4.00 ± 0% ~ (all equal) GCD10x100/WithXY-8 9.00 ± 0% 12.00 ± 0% +33.33% (p=0.000 n=20+20) GCD10x1000/WithoutXY-8 4.00 ± 0% 4.00 ± 0% ~ (all equal) GCD10x1000/WithXY-8 11.0 ± 0% 12.0 ± 0% +9.09% (p=0.000 n=20+20) GCD10x10000/WithoutXY-8 4.00 ± 0% 4.00 ± 0% ~ (all equal) GCD10x10000/WithXY-8 11.0 ± 0% 12.0 ± 0% +9.09% (p=0.000 n=20+20) GCD10x100000/WithoutXY-8 4.00 ± 0% 4.00 ± 0% ~ (all equal) GCD10x100000/WithXY-8 11.0 ± 0% 12.0 ± 0% +9.09% (p=0.000 n=20+20) GCD100x100/WithoutXY-8 6.00 ± 0% 10.00 ± 0% +66.67% (p=0.000 n=20+20) GCD100x100/WithXY-8 9.00 ± 0% 15.00 ± 0% +66.67% (p=0.000 n=20+20) GCD100x1000/WithoutXY-8 6.00 ± 0% 8.00 ± 0% +33.33% (p=0.000 n=20+20) GCD100x1000/WithXY-8 12.0 ± 0% 13.0 ± 0% +8.33% (p=0.000 n=20+20) GCD100x10000/WithoutXY-8 6.00 ± 0% 8.00 ± 0% +33.33% (p=0.000 n=20+20) GCD100x10000/WithXY-8 12.0 ± 0% 13.0 ± 0% +8.33% (p=0.000 n=20+20) GCD100x100000/WithoutXY-8 6.00 ± 0% 8.00 ± 0% +33.33% (p=0.000 n=20+20) GCD100x100000/WithXY-8 12.0 ± 0% 13.0 ± 0% +8.33% (p=0.000 n=20+20) GCD1000x1000/WithoutXY-8 10.0 ± 0% 10.0 ± 0% ~ (all equal) GCD1000x1000/WithXY-8 19.0 ± 0% 20.0 ± 0% +5.26% (p=0.000 n=20+20) GCD1000x10000/WithoutXY-8 8.00 ± 0% 8.00 ± 0% ~ (all equal) GCD1000x10000/WithXY-8 26.0 ± 0% 26.0 ± 0% ~ (all equal) GCD1000x100000/WithoutXY-8 8.00 ± 0% 8.00 ± 0% ~ (all equal) GCD1000x100000/WithXY-8 27.0 ± 0% 27.0 ± 0% ~ (all equal) GCD10000x10000/WithoutXY-8 10.0 ± 0% 10.0 ± 0% ~ (all equal) GCD10000x10000/WithXY-8 76.0 ± 0% 78.0 ± 0% +2.63% (p=0.000 n=20+20) GCD10000x100000/WithoutXY-8 8.00 ± 0% 8.00 ± 0% ~ (all equal) GCD10000x100000/WithXY-8 174 ± 0% 174 ± 0% ~ (all equal) GCD100000x100000/WithoutXY-8 10.0 ± 0% 10.0 ± 0% ~ (all equal) GCD100000x100000/WithXY-8 645 ± 0% 647 ± 0% +0.31% (p=0.000 n=20+20) Hilbert-8 14.1k ± 0% 14.3k ± 0% +0.92% (p=0.000 n=20+20) Binomial-8 38.0 ± 0% 38.0 ± 0% ~ (all equal) QuoRem-8 0.00 0.00 ~ (all equal) Exp-8 21.0 ± 0% 21.0 ± 0% ~ (all equal) Exp2-8 22.0 ± 0% 22.0 ± 0% ~ (all equal) Bitset-8 0.00 0.00 ~ (all equal) BitsetNeg-8 0.00 0.00 ~ (all equal) BitsetOrig-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) BitsetNegOrig-8 2.00 ± 0% 2.00 ± 0% ~ (all equal) ModSqrt225_Tonelli-8 85.0 ± 0% 86.0 ± 0% +1.18% (p=0.000 n=20+20) ModSqrt225_3Mod4-8 25.0 ± 0% 25.0 ± 0% ~ (all equal) ModSqrt231_Tonelli-8 80.0 ± 0% 80.0 ± 0% ~ (all equal) ModSqrt231_5Mod8-8 32.0 ± 0% 32.0 ± 0% ~ (all equal) ModInverse-8 11.0 ± 0% 11.0 ± 0% ~ (all equal) Sqrt-8 13.0 ± 0% 13.0 ± 0% ~ (all equal) IntSqr/1-8 0.00 0.00 ~ (all equal) IntSqr/2-8 0.00 0.00 ~ (all equal) IntSqr/3-8 0.00 0.00 ~ (all equal) IntSqr/5-8 0.00 0.00 ~ (all equal) IntSqr/8-8 0.00 0.00 ~ (all equal) IntSqr/10-8 0.00 0.00 ~ (all equal) IntSqr/20-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) IntSqr/30-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) IntSqr/50-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) IntSqr/80-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) IntSqr/100-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) IntSqr/200-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) IntSqr/300-8 3.00 ± 0% 3.00 ± 0% ~ (all equal) IntSqr/500-8 3.00 ± 0% 3.00 ± 0% ~ (all equal) IntSqr/800-8 9.00 ± 0% 9.00 ± 0% ~ (all equal) IntSqr/1000-8 9.00 ± 0% 9.00 ± 0% ~ (all equal) Div/20/10-8 0.00 0.00 ~ (all equal) Div/200/100-8 0.00 0.00 ~ (all equal) Div/2000/1000-8 0.00 0.00 ~ (all equal) Div/20000/10000-8 0.00 0.00 ~ (all equal) Div/200000/100000-8 0.00 0.00 ~ (all equal) Mul-8 2.00 ± 0% 2.00 ± 0% ~ (all equal) ZeroShifts/Shl-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) ZeroShifts/ShlSame-8 0.00 0.00 ~ (all equal) ZeroShifts/Shr-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) ZeroShifts/ShrSame-8 0.00 0.00 ~ (all equal) Exp3Power/0x10-8 4.00 ± 0% 4.00 ± 0% ~ (all equal) Exp3Power/0x40-8 4.00 ± 0% 4.00 ± 0% ~ (all equal) Exp3Power/0x100-8 5.00 ± 0% 5.00 ± 0% ~ (all equal) Exp3Power/0x400-8 7.00 ± 0% 7.00 ± 0% ~ (all equal) Exp3Power/0x1000-8 11.0 ± 0% 11.0 ± 0% ~ (all equal) Exp3Power/0x4000-8 15.0 ± 0% 15.0 ± 0% ~ (all equal) Exp3Power/0x10000-8 29.0 ± 0% 29.0 ± 0% ~ (all equal) Exp3Power/0x40000-8 140 ± 0% 140 ± 0% ~ (all equal) Exp3Power/0x100000-8 1.12k ± 0% 1.12k ± 0% ~ (all equal) Exp3Power/0x400000-8 9.88k ± 0% 9.88k ± 0% ~ (p=0.747 n=17+19) Fibo-8 739 ± 0% 743 ± 0% +0.54% (p=0.000 n=20+20) NatSqr/1-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) NatSqr/2-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) NatSqr/3-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) NatSqr/5-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) NatSqr/8-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) NatSqr/10-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) NatSqr/20-8 2.00 ± 0% 2.00 ± 0% ~ (all equal) NatSqr/30-8 2.00 ± 0% 2.00 ± 0% ~ (all equal) NatSqr/50-8 2.00 ± 0% 2.00 ± 0% ~ (all equal) NatSqr/80-8 2.00 ± 0% 2.00 ± 0% ~ (all equal) NatSqr/100-8 2.00 ± 0% 2.00 ± 0% ~ (all equal) NatSqr/200-8 2.00 ± 0% 2.00 ± 0% ~ (all equal) NatSqr/300-8 4.00 ± 0% 4.00 ± 0% ~ (all equal) NatSqr/500-8 4.00 ± 0% 4.00 ± 0% ~ (all equal) NatSqr/800-8 10.0 ± 0% 10.0 ± 0% ~ (all equal) NatSqr/1000-8 10.0 ± 0% 10.0 ± 0% ~ (all equal) NatSetBytes/8-8 0.00 0.00 ~ (all equal) NatSetBytes/24-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) NatSetBytes/128-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) NatSetBytes/7-8 0.00 0.00 ~ (all equal) NatSetBytes/23-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) NatSetBytes/127-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) ScanPi-8 60.0 ± 0% 61.0 ± 0% +1.67% (p=0.000 n=20+20) StringPiParallel-8 24.0 ± 0% 24.0 ± 0% ~ (all equal) Scan/10/Base2-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/100/Base2-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/1000/Base2-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/10000/Base2-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/100000/Base2-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/10/Base8-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/100/Base8-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/1000/Base8-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/10000/Base8-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/100000/Base8-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/10/Base10-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/100/Base10-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/1000/Base10-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/10000/Base10-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/100000/Base10-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/10/Base16-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/100/Base16-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/1000/Base16-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/10000/Base16-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Scan/100000/Base16-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/10/Base2-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/100/Base2-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/1000/Base2-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/10000/Base2-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/100000/Base2-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/10/Base8-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/100/Base8-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/1000/Base8-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/10000/Base8-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/100000/Base8-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/10/Base10-8 2.00 ± 0% 2.00 ± 0% ~ (all equal) String/100/Base10-8 2.00 ± 0% 2.00 ± 0% ~ (all equal) String/1000/Base10-8 3.00 ± 0% 3.00 ± 0% ~ (all equal) String/10000/Base10-8 3.00 ± 0% 3.00 ± 0% ~ (all equal) String/100000/Base10-8 3.00 ± 0% 3.00 ± 0% ~ (all equal) String/10/Base16-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/100/Base16-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/1000/Base16-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/10000/Base16-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/100000/Base16-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) LeafSize/0-8 10.0 ± 0% 10.0 ± 0% ~ (all equal) LeafSize/1-8 13.0 ± 0% 13.0 ± 0% ~ (all equal) LeafSize/2-8 13.0 ± 0% 13.0 ± 0% ~ (all equal) LeafSize/3-8 13.0 ± 0% 13.0 ± 0% ~ (all equal) LeafSize/4-8 13.0 ± 0% 13.0 ± 0% ~ (all equal) LeafSize/5-8 13.0 ± 0% 13.0 ± 0% ~ (all equal) LeafSize/6-8 12.0 ± 0% 12.0 ± 0% ~ (all equal) LeafSize/7-8 12.0 ± 0% 12.0 ± 0% ~ (all equal) LeafSize/8-8 12.0 ± 0% 12.0 ± 0% ~ (all equal) LeafSize/9-8 12.0 ± 0% 12.0 ± 0% ~ (all equal) LeafSize/10-8 12.0 ± 0% 12.0 ± 0% ~ (all equal) LeafSize/11-8 12.0 ± 0% 12.0 ± 0% ~ (all equal) LeafSize/12-8 12.0 ± 0% 12.0 ± 0% ~ (all equal) LeafSize/13-8 12.0 ± 0% 12.0 ± 0% ~ (all equal) LeafSize/14-8 12.0 ± 0% 12.0 ± 0% ~ (all equal) LeafSize/15-8 12.0 ± 0% 12.0 ± 0% ~ (all equal) LeafSize/16-8 12.0 ± 0% 12.0 ± 0% ~ (all equal) LeafSize/32-8 12.0 ± 0% 12.0 ± 0% ~ (all equal) LeafSize/64-8 11.0 ± 0% 11.0 ± 0% ~ (all equal) ProbablyPrime/n=0-8 52.0 ± 0% 52.0 ± 0% ~ (all equal) ProbablyPrime/n=1-8 73.0 ± 0% 73.0 ± 0% ~ (all equal) ProbablyPrime/n=5-8 157 ± 0% 157 ± 0% ~ (all equal) ProbablyPrime/n=10-8 262 ± 0% 262 ± 0% ~ (all equal) ProbablyPrime/n=20-8 472 ± 0% 472 ± 0% ~ (all equal) ProbablyPrime/Lucas-8 22.0 ± 0% 22.0 ± 0% ~ (all equal) ProbablyPrime/MillerRabinBase2-8 29.0 ± 0% 29.0 ± 0% ~ (all equal) FloatSqrt/64-8 9.00 ± 0% 10.00 ± 0% +11.11% (p=0.000 n=20+20) FloatSqrt/128-8 12.0 ± 0% 13.0 ± 0% +8.33% (p=0.000 n=20+20) FloatSqrt/256-8 8.00 ± 0% 8.00 ± 0% ~ (all equal) FloatSqrt/1000-8 9.00 ± 0% 9.00 ± 0% ~ (all equal) FloatSqrt/10000-8 14.0 ± 0% 14.0 ± 0% ~ (all equal) FloatSqrt/100000-8 33.0 ± 0% 33.0 ± 0% ~ (all equal) FloatSqrt/1000000-8 1.16k ± 0% 1.16k ± 0% ~ (all equal) [Geo mean] 6.62 6.76 +2.09% Change-Id: Id9df4157cac1e07721e35cff7fcdefe60703873a Reviewed-on: https://go-review.googlesource.com/c/150999 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> Reviewed-by: Alan Donovan <adonovan@google.com> Reviewed-by: Robert Griesemer <gri@golang.org> |
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| test | ||
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| .gitignore | ||
| AUTHORS | ||
| CONTRIBUTING.md | ||
| CONTRIBUTORS | ||
| favicon.ico | ||
| LICENSE | ||
| PATENTS | ||
| README.md | ||
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The Go Programming Language
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.
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Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.
Download and Install
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Contributing
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To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html
Note that the Go project uses the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.