Programming Language and compiler
Benchmarks

Zig VS Javascript benchmarks

Current benchmark data was generated on Fri Aug 01 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
javascript 1-m.js 924ms 19ms 173.9MB 1400ms 193ms bun 1.2.19
javascript 1.js 1057ms 11ms 455.9MB 973ms 230ms node 24.4.1
zig 1.zig 1735ms 12ms 49.0MB 1707ms 13ms zig 0.14.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 99ms 1.4ms 76.3MB 80ms 23ms bun 1.2.19
javascript 1.js 128ms 0.9ms 81.6MB 127ms 23ms node 24.4.1
zig 1.zig 150ms 1.6ms 7.0MB 140ms 0ms zig 0.14.1

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 280ms 5.6ms 67.8MB 290ms 27ms node 24.4.1
javascript 1.js 519ms 4.8ms 74.4MB 497ms 17ms bun 1.2.19
zig 1.zig 2263ms 4.3ms 2.5MB 2233ms 10ms zig 0.14.1

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 125ms 1.2ms 64.0MB 117ms 10ms node 24.4.1
zig 1.zig 379ms 2.3ms 1.9MB 363ms 0ms zig 0.14.1
javascript 1.js 508ms 2.5ms 63.9MB 487ms 17ms bun 1.2.19

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 639ms 3.6ms 1.4MB 2410ms 0ms zig 0.14.1
zig 3-i.zig 1763ms 1.4ms 1.0MB 1753ms 0ms zig 0.14.1
zig 1.zig 2716ms 2.1ms 1.0MB 2707ms 0ms zig 0.14.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 59ms 0.3ms 1.4MB 200ms 0ms zig 0.14.1
zig 3-i.zig 147ms 0.4ms 1.0MB 140ms 0ms zig 0.14.1
zig 1.zig 229ms 0.3ms 1.0MB 220ms 0ms zig 0.14.1

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 89ms 0.7ms 1.0MB 80ms 0ms zig 0.14.1

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 11ms 0.7ms 1.0MB 0ms 0ms zig 0.14.1

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 0.9ms 0.0ms 1.1MB 0ms 0ms zig 0.14.1
javascript 1.js 11ms 0.5ms 30.6MB 0ms 0ms bun 1.2.19
javascript 1.js 32ms 0.3ms 50.7MB 18ms 4ms node 24.4.1

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1-m.zig 317ms 5.6ms 67.2MB 830ms 27ms zig 0.14.1
zig 1.zig 501ms 8.6ms 28.1MB 480ms 7ms zig 0.14.1

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1-m.zig 63ms 0.7ms 54.3MB 127ms 30ms zig 0.14.1
zig 1.zig 67ms 2.5ms 15.4MB 50ms 0ms zig 0.14.1

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 33ms 1.4ms 2.8MB 23ms 0ms zig 0.14.1
javascript 2.js 305ms 1.5ms 65.3MB 297ms 10ms node 24.4.1
javascript 1.js 565ms 1.0ms 63.8MB 550ms 10ms node 24.4.1
javascript 2.js 688ms 2.6ms 121.7MB 750ms 53ms bun 1.2.19
javascript 1.js 855ms 21ms 104.9MB 920ms 103ms bun 1.2.19

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 94ms 3.0ms 2.8MB 87ms 0ms zig 0.14.1
javascript 2.js 833ms 3.5ms 72.3MB 820ms 10ms node 24.4.1
javascript 1.js 1619ms 0.4ms 70.7MB 1597ms 13ms node 24.4.1
javascript 2.js 1924ms 12ms 121.8MB 2100ms 67ms bun 1.2.19
javascript 1.js 2374ms 12ms 104.9MB 2657ms 173ms bun 1.2.19

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 15ms 0.5ms 1.3MB 10ms 0ms zig 0.14.1
javascript 2.js 164ms 1.1ms 59.4MB 153ms 10ms node 24.4.1
javascript 1.js 170ms 5.4ms 60.8MB 153ms 10ms node 24.4.1
javascript 1.js 318ms 2.6ms 129.6MB 357ms 77ms bun 1.2.19
javascript 2.js 374ms 2.9ms 124.3MB 403ms 53ms bun 1.2.19

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 248ms 0.3ms 4.1MB 240ms 0ms zig 0.14.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 12ms 0.1ms 1.1MB 0ms 0ms zig 0.14.1

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.js 455ms 5.8ms 138.2MB 590ms 110ms bun 1.2.19
javascript 1.js 563ms 8.0ms 231.0MB 570ms 100ms node 24.4.1
zig 1.zig 860ms 0.1ms 41.0MB 830ms 13ms zig 0.14.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 112ms 1.9ms 82.8MB 100ms 33ms bun 1.2.19
javascript 1.js 157ms 4.3ms 100.8MB 150ms 37ms node 24.4.1
zig 1.zig 179ms 1.9ms 11.0MB 163ms 0ms zig 0.14.1

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 3.zig 198ms 0.5ms 1.0MB 190ms 0ms zig 0.14.1
zig 2.zig 279ms 0.5ms 1.0MB 270ms 0ms zig 0.14.1
zig 1.zig 315ms 0.9ms 1.1MB 310ms 0ms zig 0.14.1
javascript 6.js 460ms 3.5ms 59.2MB 447ms 10ms node 24.4.1
javascript 6.js 596ms 2.0ms 43.5MB 597ms 10ms bun 1.2.19

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 3.zig 22ms 0.4ms 1.0MB 10ms 0ms zig 0.14.1
zig 2.zig 30ms 0.1ms 1.0MB 20ms 0ms zig 0.14.1
zig 1.zig 33ms 0.3ms 1.1MB 30ms 0ms zig 0.14.1
javascript 6.js 79ms 0.9ms 43.5MB 80ms 3ms bun 1.2.19
javascript 6.js 79ms 2.5ms 58.8MB 67ms 7ms node 24.4.1

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 267ms 6.8ms 40.2MB 250ms 0ms zig 0.14.1
zig 2.zig 328ms 0.3ms 6.0MB 320ms 0ms zig 0.14.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 55ms 1.6ms 10.9MB 43ms 0ms zig 0.14.1
zig 2.zig 81ms 1.3ms 2.3MB 70ms 0ms zig 0.14.1

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 2446ms 4.8ms 2.2MB 2420ms 10ms zig 0.14.1
javascript 3.js 4600ms 4.2ms 123.2MB 4550ms 50ms node 24.4.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 570ms 5.8ms 1.8MB 563ms 0ms zig 0.14.1
javascript 3.js 1014ms 1.7ms 73.8MB 993ms 17ms node 24.4.1

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 2185ms 26ms 119.6MB 8307ms 67ms node 24.4.1
zig 1.zig 3687ms 4.1ms 1.4MB 3677ms 0ms zig 0.14.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 660ms 6.2ms 117.7MB 2340ms 50ms node 24.4.1
zig 1.zig 928ms 2.8ms 1.3MB 920ms 0ms zig 0.14.1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 232ms 0.3ms 1.3MB 220ms 0ms zig 0.14.1
javascript 6-m.js 273ms 4.5ms 114.4MB 847ms 47ms node 24.4.1