Programming Language and compiler
Benchmarks

Go VS Python benchmarks

Current benchmark data was generated on Sun Jul 13 2025, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][4 cores] AMD EPYC 7763 64-Core Processor (Model 1)

* -m in a file name stands for multi-threading or multi-processing

* -i in a file name stands for direct intrinsics usage. (Usage of simd intrinsics via libraries is not counted)

* -ffi in a file name stands for non-stdlib FFI usage

* (You may find time < time(user) + time(sys) for some non-parallelized programs, the overhead is from GC or JIT compiler, which are allowed to take advantage of multi-cores as that's more close to real-world scenarios.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 1162ms 7.5ms 96.8MB 1097ms 47ms pypy 3.11.13
go 1.go 1743ms 3.1ms 51.9MB 1723ms 10ms tinygo 0.38.0
go 1-m.go 2344ms 26ms 41.8MB 5190ms 40ms go 1.24.5
python 1.py timeout 0.0ms 41.0MB 4973ms 10ms cpython 3.13.5
python 1.py timeout 0.0ms 40.5MB 4743ms 240ms pyston 3.8.12

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 94ms 1.5ms 68.2MB 67ms 13ms pypy 3.11.13
go 1.go 148ms 3.7ms 5.0MB 140ms 0ms tinygo 0.38.0
go 1-m.go 208ms 2.6ms 8.0MB 370ms 7ms go 1.24.5
python 1.py 478ms 3.6ms 11.9MB 457ms 10ms pyston 3.8.12
python 1.py 727ms 3.3ms 12.9MB 717ms 0ms cpython 3.13.5

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-m.go 685ms 62ms 15.6MB 2630ms 0ms go 1.24.5
python 1.py 1241ms 47ms 104.7MB 1190ms 33ms pypy 3.11.13
python 1.py 2671ms 7.4ms 25.4MB 2650ms 10ms cpython 3.13.5
go 1.go timeout 0.0ms 13.1MB 2433ms 17063ms tinygo 0.38.0
python 1.py timeout 0.0ms 17.4MB 4980ms 7ms pyston 3.8.12

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-m.go 54ms 5.9ms 7.5MB 187ms 0ms go 1.24.5
python 1.py 223ms 2.2ms 85.2MB 187ms 23ms pypy 3.11.13
python 1.py 228ms 1.3ms 20.6MB 203ms 10ms cpython 3.13.5
go 1-m.go 651ms 55ms 4.3MB 280ms 2150ms tinygo 0.38.0
python 1.py 660ms 16ms 16.8MB 643ms 0ms pyston 3.8.12

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 117ms 2.1ms 8.4MB 107ms 0ms go 1.24.5
python 1.py 266ms 3.3ms 84.9MB 227ms 20ms pypy 3.11.13
python 1.py 362ms 3.7ms 12.6MB 347ms 0ms cpython 3.13.5
python 1.py 2007ms 3.9ms 9.6MB 1993ms 0ms pyston 3.8.12

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 35ms 1.1ms 8.2MB 30ms 0ms go 1.24.5
python 1.py 113ms 2.9ms 65.3MB 87ms 13ms pypy 3.11.13
python 1.py 134ms 46ms 12.3MB 100ms 0ms cpython 3.13.5
python 1.py 349ms 2.6ms 8.8MB 340ms 0ms pyston 3.8.12

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 722ms 3.3ms 3.0MB 2663ms 43ms tinygo 0.38.0
go 3-m.go 725ms 0.6ms 5.6MB 2807ms 0ms go 1.24.5

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 76ms 0.2ms 3.5MB 210ms 0ms go 1.24.5
go 3-m.go 102ms 3.6ms 3.0MB 187ms 37ms tinygo 0.38.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 118ms 0.9ms 5.5MB 380ms 0ms go 1.24.5
python 1.py 2206ms 28ms 89.1MB 2163ms 33ms pypy 3.11.13
python 5-m.py 2331ms 44ms 66.1MB 3597ms 827ms pypy 3.11.13
python 5-m.py 2434ms 24ms 12.5MB 3547ms 953ms pyston 3.8.12
python 1.py 3030ms 35ms 8.1MB 3013ms 0ms pyston 3.8.12
python 5-m.py 3359ms 19ms 13.8MB 4437ms 910ms cpython 3.13.5
python 1.py 4658ms 45ms 9.0MB 4647ms 0ms cpython 3.13.5

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 18ms 1.5ms 6.5MB 30ms 0ms go 1.24.5
python 1.py 279ms 5.1ms 63.3MB 253ms 10ms pypy 3.11.13
python 5-m.py 310ms 3.6ms 12.5MB 397ms 147ms pyston 3.8.12
python 1.py 314ms 1.1ms 8.1MB 300ms 0ms pyston 3.8.12
python 5-m.py 393ms 1.0ms 13.8MB 473ms 127ms cpython 3.13.5
python 5-m.py 449ms 2.7ms 66.2MB 743ms 297ms pypy 3.11.13
python 1.py 486ms 1.2ms 9.0MB 473ms 0ms cpython 3.13.5

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 0.6ms 0.1ms 0.3MB 0ms 0ms tinygo 0.38.0
go 1.go 1.4ms 0.1ms 3.4MB 0ms 0ms go 1.24.5
python 1.py 12ms 0.8ms 7.6MB 0ms 0ms pyston 3.8.12
python 1.py 14ms 1.2ms 8.8MB 10ms 0ms cpython 3.13.5
python 1.py 30ms 0.8ms 52.3MB 10ms 10ms pypy 3.11.13

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-http2.go 120ms 5.3ms 60.3MB 330ms 80ms go 1.24.5
go 2-m.go 386ms 12ms 170.1MB 687ms 633ms go 1.24.5
go 1-m.go 388ms 25ms 176.1MB 727ms 580ms go 1.24.5
python 1.py 2132ms 36ms 26.6MB 1080ms 1440ms pyston 3.8.12
python 1.py 2538ms 364ms 27.6MB 1573ms 1443ms cpython 3.13.5
python 1.py 4714ms 375ms 102.2MB 3087ms 1100ms pypy 3.11.13

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-http2.go 23ms 13ms 25.6MB 60ms 15ms go 1.24.5
go 2-m.go 25ms 25ms 26.9MB 35ms 50ms go 1.24.5
go 1-m.go 70ms 3.8ms 36.7MB 97ms 97ms go 1.24.5
python 1.py 1088ms 2.8ms 21.3MB 237ms 253ms pyston 3.8.12
python 1.py 1193ms 73ms 22.9MB 313ms 247ms cpython 3.13.5
python 1.py 1730ms 340ms 87.1MB 750ms 210ms pypy 3.11.13

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 2-ffi.go 46ms 0.9ms 40.5MB 40ms 3ms go 1.24.5
go 1.go 144ms 1.6ms 18.6MB 137ms 0ms go 1.24.5
python 1.py 201ms 0.9ms 38.1MB 167ms 23ms pyston 3.8.12
python 1.py 217ms 2.1ms 38.7MB 193ms 10ms cpython 3.13.5
python 1.py 451ms 4.1ms 109.3MB 403ms 37ms pypy 3.11.13

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 2-ffi.go 251ms 6.7ms 145.2MB 247ms 40ms go 1.24.5
go 1.go 752ms 3.9ms 105.1MB 740ms 13ms go 1.24.5
python 1.py 1831ms 9.9ms 220.5MB 1663ms 157ms pyston 3.8.12
python 1.py 1931ms 9.0ms 222.0MB 1827ms 90ms cpython 3.13.5
python 1.py 3242ms 13ms 365.1MB 3083ms 140ms pypy 3.11.13

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 7-m.go 703ms 41ms 40.2MB 2410ms 30ms go 1.24.5
python 3-m.py 2341ms 4.1ms 136.0MB 7903ms 333ms pypy 3.11.13
python 3-m.py 3129ms 44ms 34.2MB 11863ms 123ms pyston 3.8.12
python 3.py timeout 0.0ms 35.8MB 90ms 20ms cpython 3.13.5

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 7-m.go 129ms 2.0ms 24.0MB 343ms 20ms go 1.24.5
python 3-m.py 390ms 0.6ms 76.7MB 980ms 150ms pypy 3.11.13
python 3-m.py 395ms 4.5ms 14.3MB 1297ms 80ms pyston 3.8.12
python 3-m.py 660ms 11ms 15.2MB 2320ms 67ms cpython 3.13.5

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3.go 121ms 2.2ms 3.5MB 113ms 0ms go 1.24.5
go 3.go 133ms 1.4ms 0.4MB 127ms 0ms tinygo 0.38.0
python 2.py 154ms 2.4ms 58.9MB 130ms 10ms pypy 3.11.13
python 1.py 187ms 3.8ms 59.8MB 160ms 10ms pypy 3.11.13
python 1.py 730ms 3.4ms 8.9MB 720ms 0ms pyston 3.8.12
python 2.py 845ms 19ms 8.5MB 833ms 0ms pyston 3.8.12
python 1.py 1136ms 8.0ms 9.5MB 1123ms 0ms cpython 3.13.5
python 2.py 1323ms 19ms 9.3MB 1310ms 0ms cpython 3.13.5

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 2.py 361ms 2.1ms 59.7MB 330ms 10ms pypy 3.11.13
go 3.go 390ms 2.9ms 0.4MB 380ms 0ms tinygo 0.38.0
go 3.go 390ms 2.1ms 3.5MB 380ms 0ms go 1.24.5
python 1.py 401ms 4.8ms 60.9MB 377ms 13ms pypy 3.11.13
python 1.py 2157ms 16ms 8.9MB 2143ms 0ms pyston 3.8.12
python 2.py 2513ms 23ms 8.5MB 2503ms 0ms pyston 3.8.12
python 1.py 3335ms 53ms 9.5MB 3320ms 0ms cpython 3.13.5
python 2.py 3942ms 29ms 9.3MB 3930ms 0ms cpython 3.13.5

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3.go 50ms 0.9ms 3.5MB 40ms 0ms go 1.24.5
go 3.go 65ms 2.1ms 0.3MB 60ms 0ms tinygo 0.38.0
python 2.py 109ms 3.1ms 58.1MB 87ms 10ms pypy 3.11.13
python 1.py 124ms 3.2ms 59.4MB 103ms 10ms pypy 3.11.13
python 1.py 361ms 6.0ms 8.5MB 347ms 0ms pyston 3.8.12
python 2.py 388ms 3.0ms 8.1MB 377ms 0ms pyston 3.8.12
python 1.py 534ms 6.3ms 9.3MB 523ms 0ms cpython 3.13.5
python 2.py 638ms 7.1ms 8.9MB 627ms 0ms cpython 3.13.5

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 2664ms 11ms 7.7MB 2657ms 0ms go 1.24.5
go 1.go 3575ms 20ms 3.3MB 3567ms 0ms tinygo 0.38.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 117ms 2.8ms 3.6MB 110ms 0ms go 1.24.5
go 1.go 151ms 2.9ms 0.4MB 143ms 0ms tinygo 0.38.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 1031ms 11ms 35.5MB 1010ms 7ms tinygo 0.38.0
go 2.go 1380ms 20ms 51.9MB 1357ms 7ms tinygo 0.38.0
go 1-m.go 1434ms 9.9ms 41.0MB 3033ms 40ms go 1.24.5
go 2-m.go 1649ms 21ms 51.2MB 3610ms 33ms go 1.24.5
python 1.py 2184ms 9.5ms 204.9MB 2073ms 97ms pypy 3.11.13
python 1.py timeout 0.0ms 94.1MB 4960ms 27ms cpython 3.13.5
python 1.py timeout 0.0ms 130.4MB 4940ms 47ms pyston 3.8.12

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 207ms 3.3ms 11.6MB 190ms 0ms tinygo 0.38.0
go 2.go 259ms 3.2ms 15.4MB 243ms 0ms tinygo 0.38.0
go 1-m.go 325ms 2.6ms 12.2MB 653ms 23ms go 1.24.5
go 2-m.go 368ms 1.3ms 14.3MB 783ms 17ms go 1.24.5
python 1.py 378ms 3.7ms 105.2MB 320ms 47ms pypy 3.11.13
python 1.py 2994ms 19ms 37.4MB 2970ms 10ms cpython 3.13.5
python 1.py timeout 0.0ms 48.9MB 4943ms 43ms pyston 3.8.12

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 347ms 2.9ms 0.3MB 340ms 0ms tinygo 0.38.0
go 1.go 351ms 2.5ms 3.5MB 343ms 0ms go 1.24.5
python 2.py 1348ms 4.2ms 60.6MB 1320ms 10ms pypy 3.11.13
python 1.py 2705ms 69ms 57.8MB 2677ms 13ms pypy 3.11.13
python 1.py timeout 0.0ms 8.9MB 4990ms 0ms cpython 3.13.5
python 2.py timeout 0.0ms 9.0MB 4990ms 0ms cpython 3.13.5
python 1.py timeout 0.0ms 8.3MB 4990ms 0ms pyston 3.8.12
python 2.py timeout 0.0ms 8.1MB 4990ms 0ms pyston 3.8.12

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 37ms 1.7ms 0.3MB 30ms 0ms tinygo 0.38.0
go 1.go 38ms 1.3ms 3.5MB 30ms 0ms go 1.24.5
python 2.py 178ms 3.3ms 58.3MB 153ms 10ms pypy 3.11.13
python 1.py 309ms 4.0ms 57.8MB 287ms 10ms pypy 3.11.13
python 1.py 936ms 11ms 8.3MB 927ms 0ms pyston 3.8.12
python 2.py 1312ms 18ms 8.3MB 1300ms 0ms pyston 3.8.12
python 1.py 2893ms 26ms 8.9MB 2883ms 0ms cpython 3.13.5
python 2.py 3043ms 14ms 9.0MB 3030ms 0ms cpython 3.13.5

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 313ms 5.6ms 39.4MB 297ms 0ms tinygo 0.38.0
go 1.go 315ms 7.2ms 71.7MB 303ms 0ms go 1.24.5
go 2.go 470ms 3.6ms 20.0MB 457ms 0ms tinygo 0.38.0
go 2.go 784ms 5.0ms 21.8MB 773ms 7ms go 1.24.5
python 1.py 2498ms 18ms 369.9MB 2430ms 53ms pypy 3.11.13
python 2.py 2971ms 13ms 632.9MB 2787ms 167ms pyston 3.8.12
python 1.py 4747ms 19ms 320.5MB 4687ms 47ms pyston 3.8.12
python 1.py timeout 0.0ms 321.4MB 4960ms 23ms cpython 3.13.5
python 2.py timeout 0.0ms 633.8MB 4823ms 163ms cpython 3.13.5
python 2.py timeout 0.0ms 1017.5MB 4707ms 280ms pypy 3.11.13

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 63ms 3.8ms 21.6MB 53ms 0ms go 1.24.5
go 1.go 71ms 6.1ms 10.0MB 60ms 0ms tinygo 0.38.0
go 2.go 118ms 3.3ms 4.1MB 110ms 0ms tinygo 0.38.0
go 2.go 194ms 1.7ms 6.1MB 187ms 0ms go 1.24.5
python 1.py 525ms 4.9ms 135.5MB 487ms 20ms pypy 3.11.13
python 2.py 721ms 2.3ms 164.2MB 670ms 33ms pyston 3.8.12
python 1.py 1066ms 26ms 86.0MB 1043ms 10ms pyston 3.8.12
python 2.py 1385ms 12ms 290.8MB 1297ms 73ms pypy 3.11.13
python 2.py 1398ms 5.5ms 165.1MB 1353ms 30ms cpython 3.13.5
python 1.py 2846ms 21ms 87.0MB 2817ms 10ms cpython 3.13.5

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 8.go 1128ms 11ms 8.6MB 1117ms 3ms go 1.24.5
python 4.py 1921ms 13ms 8.9MB 1873ms 33ms pyston 3.8.12
python 4.py 1974ms 0.7ms 9.5MB 1920ms 40ms cpython 3.13.5
python 4.py 2156ms 3.3ms 89.6MB 2117ms 27ms pypy 3.11.13

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 8.go 266ms 3.2ms 8.6MB 253ms 0ms go 1.24.5
python 4.py 454ms 1.7ms 8.6MB 440ms 0ms pyston 3.8.12
python 4.py 470ms 3.8ms 9.4MB 457ms 0ms cpython 3.13.5
python 4.py 541ms 4.5ms 83.8MB 503ms 23ms pypy 3.11.13

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 2245ms 6.4ms 244.7MB 2187ms 43ms pypy 3.11.13
python 1.py 4731ms 10ms 226.2MB 4540ms 177ms pyston 3.8.12
go 3.go timeout 0.0ms 124.3MB 4987ms 43ms go 1.24.5
go 3.go timeout 0.0ms 85.0MB 4973ms 13ms tinygo 0.38.0
python 1.py timeout 0.0ms 145.6MB 4930ms 57ms cpython 3.13.5

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 339ms 7.7ms 86.8MB 293ms 30ms pypy 3.11.13
python 1.py 498ms 2.4ms 30.5MB 463ms 17ms pyston 3.8.12
python 1.py 613ms 2.2ms 29.7MB 583ms 17ms cpython 3.13.5
go 3.go 1778ms 8.4ms 20.0MB 1760ms 23ms go 1.24.5
go 3.go 2263ms 4.0ms 23.2MB 2243ms 3ms tinygo 0.38.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 0-ffi.go 93ms 0.4ms 5.2MB 90ms 0ms go 1.24.5
python 1.py 3177ms 13ms 8.3MB 3163ms 0ms pyston 3.8.12
python 1.py 3587ms 25ms 75.4MB 3547ms 27ms pypy 3.11.13
python 1.py 3805ms 16ms 8.9MB 3790ms 0ms cpython 3.13.5

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 0-ffi.go 25ms 0.6ms 5.1MB 20ms 0ms go 1.24.5
python 1.py 802ms 4.0ms 8.3MB 793ms 0ms pyston 3.8.12
python 1.py 961ms 8.5ms 8.9MB 950ms 0ms cpython 3.13.5
python 1.py 996ms 3.5ms 68.6MB 963ms 17ms pypy 3.11.13

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 4-m.go 1905ms 8.6ms 5.5MB 7413ms 7ms go 1.24.5
go 1.go 3702ms 11ms 5.6MB 3693ms 0ms go 1.24.5
go 1.go timeout 0.0ms 0.5MB 4990ms 0ms tinygo 0.38.0
python 8.py timeout 0.0ms 14.8MB 33ms 10ms cpython 3.13.5
python 8.py timeout 0.0ms 94.7MB 680ms 60ms pypy 3.11.13
python 8.py timeout 0.0ms 14.2MB 33ms 13ms pyston 3.8.12

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 4-m.go 482ms 3.4ms 5.5MB 1833ms 0ms go 1.24.5
go 1.go 915ms 1.8ms 3.5MB 907ms 0ms go 1.24.5
go 1.go 1397ms 0.6ms 0.4MB 1390ms 0ms tinygo 0.38.0
python 8.py timeout 0.0ms 14.5MB 43ms 10ms cpython 3.13.5
python 8.py timeout 0.0ms 97.8MB 1170ms 147ms pypy 3.11.13
python 8.py timeout 0.0ms 13.6MB 57ms 20ms pyston 3.8.12

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 4-m.go 125ms 0.9ms 5.5MB 450ms 0ms go 1.24.5
go 1.go 237ms 2.0ms 3.5MB 230ms 0ms go 1.24.5
go 1.go 351ms 0.4ms 0.4MB 340ms 0ms tinygo 0.38.0
python 8-m.py 2134ms 4.9ms 94.1MB 7090ms 240ms pypy 3.11.13
python 8.py timeout 0.0ms 14.0MB 87ms 17ms cpython 3.13.5
python 8.py timeout 0.0ms 13.2MB 133ms 33ms pyston 3.8.12