Programming Language and compiler
Benchmarks

Zig VS Python benchmarks

Current benchmark data was generated on Wed Jan 22 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 1189ms 1.9ms 95.8MB 1113ms 57ms pypy 3.10.14
zig 1.zig 1729ms 12ms 49.1MB 1700ms 13ms zig 0.13.0
python 1.py timeout 0.0ms 40.9MB 4970ms 17ms cpython 3.13.1
python 1.py timeout 0.0ms 40.6MB 4760ms 227ms pyston 3.8.12

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 96ms 2.4ms 68.1MB 67ms 20ms pypy 3.10.14
zig 1.zig 146ms 1.2ms 7.1MB 137ms 0ms zig 0.13.0
python 1.py 486ms 19ms 11.9MB 457ms 13ms pyston 3.8.12
python 1.py 705ms 9.2ms 12.6MB 693ms 0ms cpython 3.13.1

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 246ms 1.1ms 82.8MB 213ms 13ms pypy 3.10.14
python 1.py 362ms 2.1ms 12.7MB 347ms 3ms cpython 3.13.1
python 1.py 1998ms 4.4ms 9.6MB 1980ms 3ms pyston 3.8.12
zig 1.zig 2269ms 5.3ms 2.5MB 2230ms 23ms zig 0.13.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 97ms 0.7ms 62.8MB 63ms 20ms pypy 3.10.14
python 1.py 109ms 3.8ms 12.4MB 100ms 0ms cpython 3.13.1
python 1.py 347ms 2.2ms 8.8MB 333ms 0ms pyston 3.8.12
zig 1.zig 384ms 2.4ms 1.9MB 370ms 3ms zig 0.13.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 661ms 18ms 3.5MB 2427ms 0ms zig 0.13.0
zig 3-i.zig 1788ms 0.6ms 1.1MB 1777ms 0ms zig 0.13.0
zig 2.zig 2476ms 64ms 1.1MB 2467ms 0ms zig 0.13.0
zig 1.zig 2868ms 9.8ms 1.1MB 2857ms 0ms zig 0.13.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 60ms 2.2ms 3.5MB 190ms 0ms zig 0.13.0
zig 3-i.zig 149ms 0.2ms 1.1MB 140ms 0ms zig 0.13.0
zig 2.zig 199ms 5.9ms 1.1MB 190ms 0ms zig 0.13.0
zig 1.zig 239ms 0.8ms 1.1MB 230ms 0ms zig 0.13.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 87ms 0.6ms 1.1MB 80ms 0ms zig 0.13.0
python 1.py 1911ms 8.2ms 88.3MB 1857ms 40ms pypy 3.10.14
python 5-m.py 2495ms 45ms 12.5MB 3553ms 1080ms pyston 3.8.12
python 5-m.py 2855ms 12ms 65.0MB 4090ms 777ms pypy 3.10.14
python 1.py 3021ms 48ms 8.1MB 3007ms 0ms pyston 3.8.12
python 5-m.py 3417ms 98ms 13.9MB 4510ms 963ms cpython 3.13.1
python 1.py 4635ms 124ms 8.6MB 4623ms 0ms cpython 3.13.1

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 10ms 0.1ms 1.1MB 0ms 0ms zig 0.13.0
python 1.py 251ms 0.5ms 63.5MB 217ms 13ms pypy 3.10.14
python 1.py 311ms 2.8ms 8.1MB 300ms 0ms pyston 3.8.12
python 5-m.py 312ms 2.4ms 12.5MB 397ms 143ms pyston 3.8.12
python 5-m.py 402ms 4.6ms 13.8MB 477ms 150ms cpython 3.13.1
python 1.py 471ms 5.4ms 8.8MB 460ms 0ms cpython 3.13.1
python 5-m.py 544ms 2.1ms 64.9MB 817ms 287ms pypy 3.10.14

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 1.0ms 0.1ms 1.3MB 0ms 0ms zig 0.13.0
python 1.py 12ms 1.1ms 7.6MB 0ms 0ms pyston 3.8.12
python 1.py 14ms 1.2ms 8.5MB 10ms 0ms cpython 3.13.1
python 1.py 28ms 0.6ms 51.0MB 10ms 8ms pypy 3.10.14

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 788ms 2.8ms 20.8MB 767ms 7ms zig 0.13.0
python 3-m.py 2529ms 31ms 138.0MB 8620ms 330ms pypy 3.10.14
python 3-m.py 3123ms 17ms 33.9MB 11820ms 127ms pyston 3.8.12
python 3.py timeout 0.0ms 35.1MB 97ms 13ms cpython 3.13.1

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 89ms 1.6ms 7.5MB 73ms 0ms zig 0.13.0
python 3-m.py 395ms 0.9ms 15.7MB 1303ms 67ms pyston 3.8.12
python 3-m.py 398ms 3.2ms 77.1MB 1017ms 157ms pypy 3.10.14
python 3-m.py 656ms 8.0ms 17.2MB 2300ms 57ms cpython 3.13.1

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 35ms 1.1ms 2.9MB 30ms 0ms zig 0.13.0
python 2.py 146ms 1.1ms 57.9MB 120ms 13ms pypy 3.10.14
python 1.py 181ms 1.4ms 59.5MB 153ms 10ms pypy 3.10.14
python 1.py 718ms 4.4ms 8.9MB 707ms 0ms pyston 3.8.12
python 2.py 832ms 3.1ms 8.5MB 817ms 0ms pyston 3.8.12
python 1.py 1101ms 2.8ms 9.3MB 1083ms 0ms cpython 3.13.1
python 2.py 1309ms 4.2ms 9.1MB 1297ms 0ms cpython 3.13.1

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 97ms 2.2ms 2.9MB 83ms 0ms zig 0.13.0
python 2.py 338ms 1.6ms 58.9MB 313ms 7ms pypy 3.10.14
python 1.py 385ms 6.4ms 60.4MB 353ms 13ms pypy 3.10.14
python 1.py 2127ms 17ms 8.9MB 2110ms 0ms pyston 3.8.12
python 2.py 2489ms 22ms 8.5MB 2473ms 0ms pyston 3.8.12
python 1.py 3291ms 15ms 9.3MB 3283ms 0ms cpython 3.13.1
python 2.py 3877ms 18ms 9.0MB 3860ms 0ms cpython 3.13.1

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 16ms 0.6ms 1.4MB 10ms 0ms zig 0.13.0
python 2.py 106ms 2.6ms 57.8MB 83ms 7ms pypy 3.10.14
python 1.py 122ms 2.7ms 58.5MB 103ms 10ms pypy 3.10.14
python 1.py 345ms 2.4ms 8.5MB 337ms 0ms pyston 3.8.12
python 2.py 390ms 1.7ms 8.1MB 377ms 0ms pyston 3.8.12
python 1.py 523ms 7.0ms 9.0MB 510ms 0ms cpython 3.13.1
python 2.py 622ms 5.9ms 8.6MB 607ms 0ms cpython 3.13.1

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 247ms 0.8ms 4.2MB 237ms 0ms zig 0.13.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 12ms 0.2ms 1.3MB 0ms 0ms zig 0.13.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 831ms 6.3ms 41.1MB 800ms 17ms zig 0.13.0
python 1.py 2276ms 12ms 209.9MB 2153ms 103ms pypy 3.10.14
python 1.py timeout 0.0ms 93.9MB 4953ms 33ms cpython 3.13.1
python 1.py timeout 0.0ms 130.4MB 4923ms 57ms pyston 3.8.12

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 170ms 0.9ms 11.1MB 153ms 0ms zig 0.13.0
python 1.py 389ms 1.4ms 103.6MB 330ms 43ms pypy 3.10.14
python 1.py 3030ms 33ms 37.1MB 3000ms 17ms cpython 3.13.1
python 1.py timeout 0.0ms 48.9MB 4937ms 47ms pyston 3.8.12

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2.zig 274ms 0.5ms 1.1MB 270ms 0ms zig 0.13.0
zig 1.zig 313ms 0.7ms 1.3MB 300ms 0ms zig 0.13.0
python 2.py 1366ms 23ms 59.8MB 1340ms 10ms pypy 3.10.14
python 1.py 2633ms 17ms 56.6MB 2607ms 13ms pypy 3.10.14
python 1.py timeout 0.0ms 8.6MB 4983ms 3ms cpython 3.13.1
python 2.py timeout 0.0ms 8.8MB 4990ms 0ms cpython 3.13.1
python 1.py timeout 0.0ms 8.3MB 4983ms 3ms pyston 3.8.12
python 2.py timeout 0.0ms 8.1MB 4987ms 0ms pyston 3.8.12

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2.zig 29ms 0.0ms 1.1MB 20ms 0ms zig 0.13.0
zig 1.zig 34ms 0.3ms 1.3MB 27ms 0ms zig 0.13.0
python 2.py 177ms 2.3ms 57.6MB 150ms 13ms pypy 3.10.14
python 1.py 306ms 2.6ms 56.6MB 280ms 10ms pypy 3.10.14
python 1.py 921ms 5.6ms 8.3MB 907ms 0ms pyston 3.8.12
python 2.py 1297ms 37ms 8.3MB 1283ms 0ms pyston 3.8.12
python 1.py 2982ms 117ms 8.6MB 2973ms 0ms cpython 3.13.1
python 2.py 3119ms 42ms 8.8MB 3103ms 0ms cpython 3.13.1

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 268ms 1.7ms 40.3MB 247ms 3ms zig 0.13.0
zig 2.zig 334ms 8.4ms 6.1MB 323ms 0ms zig 0.13.0
python 1.py 2562ms 34ms 369.0MB 2500ms 47ms pypy 3.10.14
python 2.py 3081ms 166ms 632.9MB 2897ms 163ms pyston 3.8.12
python 1.py 4831ms 35ms 320.4MB 4770ms 47ms pyston 3.8.12
python 1.py timeout 0.0ms 321.1MB 4960ms 27ms cpython 3.13.1
python 2.py timeout 0.0ms 633.7MB 4817ms 167ms cpython 3.13.1
python 2.py timeout 0.0ms 959.2MB 4713ms 273ms pypy 3.10.14

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 50ms 1.6ms 11.0MB 37ms 0ms zig 0.13.0
zig 2.zig 81ms 1.4ms 2.4MB 70ms 0ms zig 0.13.0
python 1.py 541ms 4.6ms 134.6MB 507ms 17ms pypy 3.10.14
python 2.py 721ms 1.2ms 164.2MB 683ms 17ms pyston 3.8.12
python 1.py 1162ms 45ms 86.0MB 1130ms 13ms pyston 3.8.12
python 2.py 1435ms 3.2ms 164.8MB 1390ms 27ms cpython 3.13.1
python 2.py 1571ms 24ms 289.8MB 1473ms 80ms pypy 3.10.14
python 1.py 2724ms 28ms 86.8MB 2693ms 13ms cpython 3.13.1

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 4.py 1907ms 9.4ms 8.9MB 1860ms 30ms pyston 3.8.12
python 4.py 1988ms 11ms 9.4MB 1930ms 40ms cpython 3.13.1
python 4.py 2128ms 6.9ms 89.0MB 2090ms 23ms pypy 3.10.14
zig 1.zig 2472ms 10ms 2.3MB 2437ms 17ms zig 0.13.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 4.py 451ms 1.8ms 8.6MB 440ms 0ms pyston 3.8.12
python 4.py 470ms 4.4ms 9.3MB 457ms 0ms cpython 3.13.1
python 4.py 542ms 7.0ms 83.4MB 507ms 17ms pypy 3.10.14
zig 1.zig 566ms 0.6ms 1.8MB 553ms 0ms zig 0.13.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 473ms 1.2ms 3.9MB 1583ms 7ms zig 0.13.0
zig 2.zig 916ms 1.6ms 1.5MB 903ms 0ms zig 0.13.0
zig 1.zig 3670ms 6.3ms 1.5MB 3660ms 0ms zig 0.13.0
python 8.py timeout 0.0ms 16.6MB 63ms 0ms cpython 3.13.1
python 8.py timeout 0.0ms 99.4MB 853ms 167ms pypy 3.10.14
python 8.py timeout 0.0ms 18.1MB 77ms 17ms pyston 3.8.12

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 125ms 0.3ms 3.7MB 273ms 3ms zig 0.13.0
zig 2.zig 231ms 2.4ms 1.4MB 220ms 0ms zig 0.13.0
zig 1.zig 921ms 1.9ms 1.4MB 910ms 0ms zig 0.13.0
python 8.py timeout 0.0ms 16.5MB 113ms 17ms cpython 3.13.1
python 8.py timeout 0.0ms 99.1MB 1567ms 470ms pypy 3.10.14
python 8.py timeout 0.0ms 17.6MB 137ms 33ms pyston 3.8.12

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 39ms 1.5ms 3.7MB 33ms 0ms zig 0.13.0
zig 2.zig 60ms 0.8ms 1.4MB 50ms 0ms zig 0.13.0
zig 1.zig 232ms 0.8ms 1.4MB 220ms 0ms zig 0.13.0
python 8-m.py 2021ms 18ms 94.9MB 6423ms 333ms pypy 3.10.14
python 8.py timeout 0.0ms 16.1MB 233ms 53ms cpython 3.13.1
python 8.py timeout 0.0ms 15.5MB 447ms 113ms pyston 3.8.12