Programming Language and compiler
Benchmarks

C# VS Python benchmarks

Current benchmark data was generated on Wed Sep 28 2022, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][2 cores] Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz (Model 106)

* -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
csharp 1.cs 1331ms 9.4ms 391.1MB 1237ms 157ms dotnet 6.0.401
python 1.py 1423ms 18ms 273.9MB 1297ms 103ms pypy 3.8.13
csharp 1.cs 2177ms 35ms 102.7MB 2453ms 197ms mono 6.12.0
python 1.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7
python 1.py timeout 0.0ms 0.0MB 0ms 0ms pyston 3.8.12

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 114ms 2.9ms 83.3MB 83ms 13ms pypy 3.8.13
csharp 1.cs 151ms 2.5ms 44.6MB 130ms 7ms mono 6.12.0
csharp 1.cs 184ms 6.7ms 90.9MB 140ms 23ms dotnet 6.0.401
python 1.py 604ms 2.9ms 11.9MB 583ms 3ms pyston 3.8.12
python 1.py 1521ms 20ms 11.9MB 1507ms 3ms cpython 3.10.7

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 1008ms 16ms 196.8MB 940ms 57ms pypy 3.8.13
csharp 1-m.cs 4095ms 60ms 104.8MB 6900ms 57ms dotnet 6.0.401
python 1.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7
python 1.py timeout 0.0ms 0.0MB 0ms 0ms pyston 3.8.12

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 260ms 0.8ms 95.4MB 223ms 20ms pypy 3.8.13
csharp 1-m.cs 414ms 34ms 88.5MB 643ms 33ms dotnet 6.0.401
python 1.py 930ms 3.1ms 17.0MB 917ms 0ms pyston 3.8.12
python 1.py 977ms 2.6ms 17.0MB 963ms 0ms cpython 3.10.7

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 810ms 2.1ms 88.0MB 777ms 17ms pypy 3.8.13
python 1.py 1669ms 0.8ms 9.3MB 1657ms 0ms cpython 3.10.7
python 1.py 2779ms 0.9ms 9.6MB 2760ms 0ms pyston 3.8.12
csharp 1.cs timeout 0.0ms 0.0MB 0ms 0ms dotnet 6.0.401

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 206ms 0.7ms 81.8MB 177ms 13ms pypy 3.8.13
python 1.py 308ms 0.6ms 8.5MB 293ms 0ms cpython 3.10.7
python 1.py 479ms 1.0ms 8.9MB 467ms 0ms pyston 3.8.12
csharp 1.cs 1108ms 5.3ms 45.9MB 1060ms 17ms dotnet 6.0.401

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 5-m.cs 480ms 11ms 80.2MB 827ms 77ms mono 6.12.0
csharp 5.cs 534ms 47ms 87.3MB 590ms 117ms dotnet 6.0.401
python 1.py 2430ms 2.9ms 91.0MB 2397ms 17ms pypy 3.8.13
python 5-m.py 3362ms 35ms 12.7MB 4993ms 967ms pyston 3.8.12
python 5-m.py 3866ms 39ms 85.1MB 5200ms 1070ms pypy 3.8.13
python 1.py 4087ms 9.2ms 7.9MB 4070ms 3ms pyston 3.8.12
python 5-m.py 4441ms 70ms 12.0MB 6400ms 987ms cpython 3.10.7
python 1.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 5-m.cs 90ms 7.4ms 39.1MB 110ms 27ms mono 6.12.0
csharp 5.cs 143ms 14ms 47.4MB 100ms 20ms dotnet 6.0.401
python 1.py 326ms 3.7ms 81.6MB 290ms 17ms pypy 3.8.13
python 1.py 423ms 0.9ms 7.9MB 413ms 0ms pyston 3.8.12
python 5-m.py 481ms 4.4ms 12.6MB 707ms 110ms pyston 3.8.12
python 5-m.py 508ms 1.0ms 12.1MB 660ms 140ms cpython 3.10.7
python 1.py 708ms 2.1ms 7.8MB 697ms 0ms cpython 3.10.7
python 5-m.py 793ms 2.8ms 85.2MB 893ms 423ms pypy 3.8.13

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 14ms 1.1ms 7.3MB 10ms 0ms pyston 3.8.12
python 1.py 15ms 1.1ms 7.4MB 10ms 0ms cpython 3.10.7
csharp 1.cs 18ms 1.2ms 24.3MB 10ms 0ms mono 6.12.0
python 1.py 34ms 2.3ms 54.9MB 12ms 8ms pypy 3.8.13
csharp 1.cs 51ms 1.8ms 29.1MB 20ms 2ms dotnet 6.0.401

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2-http2.cs 631ms 3.1ms 122.6MB 733ms 60ms dotnet 6.0.401
csharp 2-http3.cs 824ms 16ms 270.4MB 890ms 257ms dotnet 7.0.100-rc.1.22431.12
csharp 2.cs 838ms 25ms 147.3MB 770ms 393ms dotnet 6.0.401
csharp 1.cs 890ms 24ms 171.1MB 883ms 440ms dotnet 6.0.401
python 1.py 1540ms 5.2ms 29.2MB 1313ms 873ms pyston 3.8.12
python 1.py 2194ms 16ms 31.2MB 1910ms 1010ms cpython 3.10.7
python 1.py 4259ms 35ms 130.2MB 3287ms 887ms pypy 3.8.13

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 349ms 2.0ms 23.3MB 277ms 167ms pyston 3.8.12
python 1.py 436ms 1.4ms 23.8MB 363ms 187ms cpython 3.10.7
csharp 2.cs 446ms 12ms 75.3MB 373ms 87ms dotnet 6.0.401
csharp 1.cs 468ms 7.9ms 84.0MB 490ms 90ms dotnet 6.0.401
csharp 2-http2.cs 505ms 7.7ms 80.3MB 517ms 37ms dotnet 6.0.401
csharp 2-http3.cs 512ms 9.3ms 186.7MB 420ms 130ms dotnet 7.0.100-rc.1.22431.12
python 1.py 1073ms 11ms 105.9MB 880ms 163ms pypy 3.8.13

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 246ms 1.7ms 38.2MB 220ms 10ms pyston 3.8.12
python 1.py 263ms 3.1ms 38.7MB 237ms 10ms cpython 3.10.7
csharp 2.cs 359ms 4.0ms 65.8MB 313ms 27ms dotnet 6.0.401
python 1.py 423ms 1.8ms 109.1MB 387ms 20ms pypy 3.8.13
csharp 1.cs 528ms 3.5ms 145.7MB 497ms 53ms dotnet 6.0.401

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 2028ms 4.5ms 275.5MB 2087ms 107ms dotnet 6.0.401
python 1.py 2313ms 2.4ms 220.6MB 2177ms 123ms pyston 3.8.12
python 1.py 2326ms 1.8ms 219.6MB 2197ms 113ms cpython 3.10.7
python 1.py 2580ms 12ms 248.8MB 2497ms 67ms pypy 3.8.13
csharp 1.cs 3220ms 136ms 762.9MB 3243ms 340ms dotnet 6.0.401

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 6-m.cs 1216ms 108ms 75.7MB 1827ms 23ms dotnet 6.0.401
csharp 6-m.cs 1592ms 74ms 68.8MB 2630ms 30ms mono 6.12.0
python 3-m.py 3411ms 2.7ms 203.0MB 5960ms 320ms pypy 3.8.13
python 3-m.py 4696ms 72ms 34.2MB 8987ms 57ms pyston 3.8.12
python 3.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 6.cs 231ms 1.9ms 53.0MB 303ms 10ms mono 6.12.0
csharp 6.cs 236ms 3.9ms 65.5MB 243ms 37ms dotnet 6.0.401
python 3-m.py 516ms 7.9ms 97.3MB 743ms 110ms pypy 3.8.13
python 3-m.py 550ms 5.5ms 15.7MB 953ms 47ms pyston 3.8.12
python 3-m.py 832ms 4.8ms 13.6MB 1517ms 13ms cpython 3.10.7

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 184ms 0.1ms 25.2MB 170ms 0ms mono 6.12.0
python 2.py 196ms 0.7ms 79.9MB 170ms 10ms pypy 3.8.13
csharp 2.cs 199ms 3.1ms 27.6MB 163ms 7ms dotnet 6.0.401
python 1.py 237ms 1.7ms 81.0MB 210ms 13ms pypy 3.8.13
python 1.py 985ms 4.4ms 9.0MB 963ms 3ms pyston 3.8.12
python 2.py 1156ms 8.0ms 8.7MB 1147ms 0ms pyston 3.8.12
csharp 1.cs 1743ms 88ms 89.8MB 1700ms 23ms dotnet 6.0.401
python 1.py 1833ms 6.7ms 8.4MB 1823ms 0ms cpython 3.10.7
python 2.py 2618ms 42ms 8.3MB 2603ms 0ms cpython 3.10.7
csharp 1.cs 3000ms 7.7ms 49.6MB 2960ms 33ms mono 6.12.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 454ms 1.3ms 28.2MB 430ms 3ms dotnet 6.0.401
python 2.py 461ms 1.8ms 80.0MB 433ms 13ms pypy 3.8.13
python 1.py 503ms 2.3ms 81.3MB 467ms 20ms pypy 3.8.13
csharp 2.cs 506ms 7.8ms 25.0MB 490ms 3ms mono 6.12.0
python 1.py 2936ms 17ms 8.9MB 2927ms 0ms pyston 3.8.12
python 2.py 3435ms 11ms 8.7MB 3420ms 0ms pyston 3.8.12
csharp 1.cs 4626ms 14ms 90.9MB 4570ms 40ms dotnet 6.0.401
csharp 1.cs timeout 0.0ms 0.0MB 0ms 0ms mono 6.12.0
python 1.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7
python 2.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 104ms 1.1ms 25.2MB 100ms 0ms mono 6.12.0
csharp 2.cs 128ms 0.6ms 29.9MB 107ms 0ms dotnet 6.0.401
python 2.py 142ms 1.4ms 79.8MB 117ms 13ms pypy 3.8.13
python 1.py 160ms 3.5ms 81.1MB 137ms 13ms pypy 3.8.13
python 1.py 475ms 1.5ms 8.7MB 463ms 0ms pyston 3.8.12
python 2.py 539ms 2.5ms 8.2MB 523ms 0ms pyston 3.8.12
python 1.py 870ms 12ms 7.9MB 853ms 0ms cpython 3.10.7
python 2.py 1251ms 9.8ms 7.3MB 1237ms 0ms cpython 3.10.7
csharp 1.cs 3189ms 11ms 30.6MB 3163ms 0ms mono 6.12.0
csharp 1.cs 3191ms 8.4ms 77.3MB 3143ms 23ms dotnet 6.0.401

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 736ms 3.6ms 96.9MB 677ms 27ms dotnet 6.0.401
csharp 1.cs 3772ms 103ms 36.2MB 3720ms 7ms dotnet 6.0.401
csharp 3.cs 4333ms 2.8ms 36.2MB 4303ms 0ms dotnet 6.0.401
csharp 1.cs timeout 0.0ms 0.0MB 0ms 0ms mono 6.12.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 95ms 4.7ms 38.8MB 60ms 3ms dotnet 6.0.401
csharp 3.cs 248ms 2.5ms 33.1MB 220ms 0ms dotnet 6.0.401
csharp 1.cs 292ms 1.3ms 33.5MB 260ms 3ms dotnet 6.0.401
csharp 1.cs 832ms 1.3ms 28.3MB 820ms 0ms mono 6.12.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 921ms 4.2ms 391.9MB 793ms 163ms dotnet 6.0.401
csharp 2.cs 927ms 18ms 378.4MB 787ms 173ms dotnet 6.0.401
csharp 1.cs 1675ms 7.1ms 148.6MB 2093ms 110ms mono 6.12.0
python 1.py 2222ms 2.5ms 293.8MB 2007ms 193ms pypy 3.8.13
python 1.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7
python 1.py timeout 0.0ms 0.0MB 0ms 0ms pyston 3.8.12

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 252ms 2.7ms 94.2MB 203ms 30ms dotnet 6.0.401
csharp 1.cs 291ms 3.1ms 185.8MB 197ms 73ms dotnet 6.0.401
csharp 1.cs 306ms 5.3ms 72.7MB 277ms 27ms mono 6.12.0
python 1.py 323ms 3.3ms 144.9MB 263ms 47ms pypy 3.8.13
python 1.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7
python 1.py timeout 0.0ms 0.0MB 0ms 0ms pyston 3.8.12

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 9.cs 404ms 2.6ms 29.3MB 377ms 3ms dotnet 6.0.401
csharp 8.cs 532ms 4.1ms 25.4MB 503ms 3ms dotnet 6.0.401
csharp 8.cs 1107ms 0.7ms 25.1MB 1090ms 0ms mono 6.12.0
python 2.py 1903ms 43ms 80.2MB 1873ms 10ms pypy 3.8.13
python 1.py 4875ms 37ms 79.5MB 4843ms 13ms pypy 3.8.13
python 1.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7
python 2.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7
python 1.py timeout 0.0ms 0.0MB 0ms 0ms pyston 3.8.12
python 2.py timeout 0.0ms 0.0MB 0ms 0ms pyston 3.8.12

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 9.cs 91ms 6.8ms 29.4MB 63ms 3ms dotnet 6.0.401
csharp 8.cs 103ms 0.3ms 27.3MB 73ms 0ms dotnet 6.0.401
csharp 8.cs 135ms 5.0ms 25.3MB 123ms 0ms mono 6.12.0
python 2.py 250ms 4.9ms 79.9MB 217ms 17ms pypy 3.8.13
python 1.py 534ms 3.2ms 79.3MB 510ms 13ms pypy 3.8.13
python 1.py 1197ms 9.9ms 8.3MB 1183ms 0ms pyston 3.8.12
python 2.py 1623ms 53ms 8.2MB 1610ms 0ms pyston 3.8.12
python 1.py 4672ms 67ms 7.4MB 4657ms 0ms cpython 3.10.7
python 2.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 657ms 54ms 88.1MB 613ms 13ms dotnet 6.0.401
csharp 1.cs 778ms 31ms 86.7MB 757ms 7ms mono 6.12.0
csharp 2.cs 1003ms 12ms 36.1MB 977ms 3ms dotnet 6.0.401
csharp 2.cs 2442ms 17ms 34.4MB 2423ms 7ms mono 6.12.0
python 1.py 3909ms 23ms 391.6MB 3780ms 113ms pypy 3.8.13
python 1.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7
python 1.py timeout 0.0ms 0.0MB 0ms 0ms pyston 3.8.12

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 184ms 9.3ms 47.9MB 147ms 7ms dotnet 6.0.401
csharp 1.cs 192ms 0.4ms 41.1MB 173ms 3ms mono 6.12.0
csharp 2.cs 281ms 2.2ms 31.7MB 247ms 3ms dotnet 6.0.401
csharp 2.cs 604ms 0.8ms 27.7MB 590ms 0ms mono 6.12.0
python 1.py 859ms 7.3ms 215.9MB 807ms 40ms pypy 3.8.13
python 1.py 1794ms 18ms 86.0MB 1753ms 27ms pyston 3.8.12
python 1.py 3919ms 114ms 85.9MB 3883ms 17ms cpython 3.10.7

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 4.py 2546ms 5.2ms 120.0MB 2507ms 23ms pypy 3.8.13
python 4.py 2766ms 0.4ms 8.6MB 2740ms 7ms cpython 3.10.7
python 4.py 2779ms 0.7ms 9.0MB 2750ms 13ms pyston 3.8.12
csharp 1.cs 4943ms 41ms 94.3MB 4933ms 43ms dotnet 6.0.401

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 4.py 649ms 6.3ms 84.4MB 620ms 10ms pypy 3.8.13
python 4.py 657ms 0.1ms 8.7MB 647ms 0ms pyston 3.8.12
python 4.py 662ms 0.7ms 8.3MB 650ms 0ms cpython 3.10.7
csharp 1.cs 1216ms 9.0ms 94.9MB 1203ms 40ms dotnet 6.0.401

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 5.cs 3081ms 14ms 614.1MB 2997ms 247ms dotnet 7.0.100-rc.1.22431.12
python 1.py 3306ms 4.7ms 263.8MB 3217ms 73ms pypy 3.8.13
csharp 5.cs 4161ms 25ms 528.0MB 4063ms 213ms dotnet 6.0.401
python 1.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7
python 1.py timeout 0.0ms 0.0MB 0ms 0ms pyston 3.8.12

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 5.cs 449ms 4.7ms 180.3MB 383ms 47ms dotnet 7.0.100-rc.1.22431.12
python 1.py 456ms 1.9ms 104.3MB 413ms 23ms pypy 3.8.13
csharp 5.cs 526ms 1.6ms 90.1MB 493ms 17ms dotnet 6.0.401
python 1.py 693ms 1.3ms 29.8MB 660ms 13ms pyston 3.8.12
python 1.py 842ms 2.3ms 30.9MB 810ms 17ms cpython 3.10.7

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 4306ms 30ms 92.8MB 4263ms 33ms dotnet 6.0.401
python 1.py 4446ms 13ms 8.4MB 4433ms 0ms pyston 3.8.12
python 1.py 4743ms 5.5ms 87.4MB 4710ms 17ms pypy 3.8.13
python 1.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 1131ms 8.0ms 8.4MB 1113ms 0ms pyston 3.8.12
csharp 1.cs 1169ms 3.6ms 92.6MB 1127ms 50ms dotnet 6.0.401
python 1.py 1329ms 0.9ms 84.4MB 1293ms 20ms pypy 3.8.13
python 1.py 1478ms 2.4ms 7.3MB 1470ms 0ms cpython 3.10.7

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 2677ms 2.3ms 32.6MB 5163ms 10ms dotnet 6.0.401
csharp 3.cs timeout 0.0ms 0.0MB 0ms 0ms mono 6.12.0
python 8.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7
python 8.py timeout 0.0ms 0.0MB 0ms 0ms pypy 3.8.13
python 8.py timeout 0.0ms 0.0MB 0ms 0ms pyston 3.8.12

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 714ms 1.1ms 30.3MB 1290ms 13ms dotnet 6.0.401
csharp 3-m.cs 3179ms 76ms 27.6MB 6040ms 7ms mono 6.12.0
python 8.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7
python 8.py timeout 0.0ms 0.0MB 0ms 0ms pypy 3.8.13
python 8.py timeout 0.0ms 0.0MB 0ms 0ms pyston 3.8.12

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 229ms 2.9ms 29.9MB 347ms 10ms dotnet 6.0.401
csharp 3-m.cs 800ms 2.0ms 28.0MB 1520ms 3ms mono 6.12.0
python 8-m.py 3207ms 84ms 110.9MB 5483ms 330ms pypy 3.8.13
python 8.py timeout 0.0ms 0.0MB 0ms 0ms cpython 3.10.7
python 8.py timeout 0.0ms 0.0MB 0ms 0ms pyston 3.8.12