Programming Language and compiler
Benchmarks

Zig VS Rust 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
rust 4.rs 1246ms 3.8ms 33.8MB 1220ms 13ms rustc 1.84.0
rust 5.rs 1349ms 11ms 33.8MB 1327ms 7ms rustc 1.84.0
rust 3.rs 1475ms 58ms 49.8MB 1443ms 17ms rustc 1.84.0
zig 1.zig 1729ms 12ms 49.1MB 1700ms 13ms zig 0.13.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 122ms 1.4ms 5.8MB 110ms 0ms rustc 1.84.0
rust 5.rs 124ms 0.7ms 5.8MB 110ms 0ms rustc 1.84.0
rust 3.rs 139ms 4.3ms 7.8MB 123ms 3ms rustc 1.84.0
zig 1.zig 146ms 1.2ms 7.1MB 137ms 0ms zig 0.13.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 118ms 0.7ms 3.6MB 110ms 0ms rustc 1.84.0
rust 2.rs 423ms 4.0ms 3.6MB 417ms 0ms rustc 1.84.0
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
rust 1.rs 33ms 1.4ms 2.9MB 23ms 0ms rustc 1.84.0
rust 2.rs 77ms 2.1ms 3.0MB 63ms 0ms rustc 1.84.0
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
rust 3-im.rs 411ms 1.6ms 4.0MB 1577ms 0ms rustc 1.84.0
rust 5-m.rs 566ms 8.3ms 4.0MB 2153ms 0ms rustc 1.84.0
rust 2-im.rs 629ms 8.2ms 4.0MB 2403ms 3ms rustc 1.84.0
zig 2-m.zig 661ms 18ms 3.5MB 2427ms 0ms zig 0.13.0
rust 1-m.rs 967ms 7.9ms 4.0MB 3727ms 0ms rustc 1.84.0
rust 3-i.rs 1495ms 5.0ms 1.9MB 1483ms 0ms rustc 1.84.0
rust 2-i.rs 1759ms 3.0ms 1.8MB 1750ms 0ms rustc 1.84.0
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
rust 1.rs 2665ms 2.5ms 1.8MB 2657ms 0ms rustc 1.84.0
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
rust 3-im.rs 38ms 0.2ms 6.0MB 120ms 0ms rustc 1.84.0
rust 5-m.rs 56ms 3.5ms 4.0MB 170ms 0ms rustc 1.84.0
zig 2-m.zig 60ms 2.2ms 3.5MB 190ms 0ms zig 0.13.0
rust 2-im.rs 62ms 0.9ms 6.0MB 200ms 0ms rustc 1.84.0
rust 1-m.rs 86ms 1.8ms 6.0MB 300ms 0ms rustc 1.84.0
rust 3-i.rs 126ms 1.4ms 1.9MB 120ms 0ms rustc 1.84.0
rust 2-i.rs 149ms 0.9ms 1.8MB 140ms 0ms rustc 1.84.0
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
rust 1.rs 224ms 1.9ms 1.8MB 210ms 0ms rustc 1.84.0
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
rust 5c-m.rs 88ms 0.2ms 6.5MB 233ms 3ms rustc 1.84.0
rust 5-m.rs 98ms 2.1ms 4.8MB 310ms 3ms rustc 1.84.0
rust 1c.rs 163ms 1.0ms 1.9MB 153ms 0ms rustc 1.84.0
rust 1.rs 204ms 1.5ms 1.9MB 190ms 0ms rustc 1.84.0

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
rust 5c-m.rs 16ms 0.2ms 4.8MB 23ms 0ms rustc 1.84.0
rust 5-m.rs 17ms 0.4ms 6.5MB 20ms 7ms rustc 1.84.0
rust 1c.rs 19ms 0.5ms 1.9MB 10ms 0ms rustc 1.84.0
rust 1.rs 23ms 0.1ms 1.9MB 10ms 0ms rustc 1.84.0

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
rust 1.rs 1.2ms 0.0ms 1.9MB 0ms 0ms rustc 1.84.0
rust 1.rs 1.3ms 0.1ms 1.8MB 0ms 0ms rustc 1.86.0-nightly

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 241ms 8.1ms 30.2MB 700ms 3ms rustc 1.84.0
rust 8.rs 482ms 4.7ms 23.8MB 463ms 3ms rustc 1.84.0
zig 1.zig 788ms 2.8ms 20.8MB 767ms 7ms zig 0.13.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 32ms 2.6ms 16.2MB 63ms 7ms rustc 1.84.0
rust 8.rs 70ms 5.7ms 11.4MB 57ms 0ms rustc 1.84.0
zig 1.zig 89ms 1.6ms 7.5MB 73ms 0ms zig 0.13.0

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
rust 0-unsafe.rs 35ms 3.7ms 1.9MB 23ms 0ms rustc 1.84.0
rust 1.rs 53ms 2.6ms 2.0MB 40ms 0ms rustc 1.84.0

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
rust 0-unsafe.rs 134ms 22ms 1.9MB 123ms 0ms rustc 1.84.0
rust 1.rs 178ms 9.4ms 2.0MB 167ms 0ms rustc 1.84.0

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
rust 0-unsafe.rs 24ms 0.4ms 1.9MB 13ms 0ms rustc 1.84.0
rust 1.rs 30ms 1.8ms 1.9MB 20ms 0ms rustc 1.84.0

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
rust 9.rs 248ms 0.6ms 4.9MB 237ms 0ms rustc 1.86.0-nightly
rust 8.rs 324ms 31ms 4.9MB 313ms 0ms rustc 1.84.0

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
rust 9.rs 13ms 0.4ms 2.0MB 0ms 0ms rustc 1.86.0-nightly
rust 8.rs 15ms 0.3ms 2.0MB 0ms 0ms rustc 1.84.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 694ms 5.4ms 33.8MB 673ms 7ms rustc 1.84.0
zig 1.zig 831ms 6.3ms 41.1MB 800ms 17ms zig 0.13.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 151ms 3.7ms 9.8MB 137ms 0ms rustc 1.84.0
zig 1.zig 170ms 0.9ms 11.1MB 153ms 0ms zig 0.13.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 167ms 7.9ms 1.9MB 153ms 0ms rustc 1.84.0
rust 7-i.rs 236ms 0.8ms 1.9MB 227ms 0ms rustc 1.84.0
rust 1.rs 239ms 0.8ms 1.8MB 230ms 0ms rustc 1.84.0
zig 2.zig 274ms 0.5ms 1.1MB 270ms 0ms zig 0.13.0
rust 2.rs 279ms 1.1ms 1.8MB 267ms 0ms rustc 1.84.0
rust 3.rs 280ms 0.3ms 1.9MB 267ms 0ms rustc 1.86.0-nightly
zig 1.zig 313ms 0.7ms 1.3MB 300ms 0ms zig 0.13.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 21ms 3.7ms 1.8MB 10ms 0ms rustc 1.84.0
rust 7-i.rs 26ms 0.4ms 1.8MB 20ms 0ms rustc 1.84.0
rust 1.rs 26ms 0.5ms 1.9MB 17ms 0ms rustc 1.84.0
zig 2.zig 29ms 0.0ms 1.1MB 20ms 0ms zig 0.13.0
rust 2.rs 30ms 0.2ms 1.8MB 20ms 0ms rustc 1.84.0
rust 3.rs 30ms 0.2ms 1.8MB 20ms 0ms rustc 1.86.0-nightly
zig 1.zig 34ms 0.3ms 1.3MB 27ms 0ms zig 0.13.0

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
rust 1.rs 313ms 4.9ms 40.9MB 293ms 7ms rustc 1.84.0
rust 2.rs 319ms 1.7ms 6.6MB 307ms 0ms rustc 1.84.0
zig 2.zig 334ms 8.4ms 6.1MB 323ms 0ms zig 0.13.0

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
rust 1.rs 59ms 1.3ms 11.6MB 50ms 0ms rustc 1.84.0
rust 2.rs 80ms 0.7ms 2.9MB 70ms 0ms rustc 1.84.0
zig 2.zig 81ms 1.4ms 2.4MB 70ms 0ms zig 0.13.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 1530ms 9.8ms 2.7MB 1270ms 237ms rustc 1.84.0
rust 2.rs 1713ms 10ms 2.8MB 1610ms 90ms rustc 1.84.0
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
rust 1.rs 323ms 2.8ms 2.4MB 287ms 17ms rustc 1.84.0
rust 2.rs 380ms 2.1ms 2.5MB 370ms 0ms rustc 1.84.0
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
rust 8-m.rs 498ms 0.6ms 4.6MB 1907ms 0ms rustc 1.86.0-nightly
rust 7-m.rs 499ms 0.2ms 4.2MB 1927ms 0ms rustc 1.84.0
zig 2.zig 916ms 1.6ms 1.5MB 903ms 0ms zig 0.13.0
rust 8.rs 1010ms 1.5ms 2.4MB 1000ms 0ms rustc 1.86.0-nightly
rust 2-m.rs 1942ms 1.3ms 6.2MB 7613ms 3ms rustc 1.84.0
rust 7.rs 2082ms 9.0ms 2.0MB 2070ms 0ms rustc 1.84.0
zig 1.zig 3670ms 6.3ms 1.5MB 3660ms 0ms zig 0.13.0
rust 2.rs 4212ms 29ms 2.0MB 4203ms 0ms rustc 1.84.0

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
rust 8-m.rs 128ms 0.3ms 4.2MB 463ms 0ms rustc 1.86.0-nightly
rust 7-m.rs 128ms 0.3ms 6.1MB 470ms 0ms rustc 1.84.0
zig 2.zig 231ms 2.4ms 1.4MB 220ms 0ms zig 0.13.0
rust 8.rs 255ms 0.7ms 2.3MB 250ms 0ms rustc 1.86.0-nightly
rust 2-m.rs 491ms 0.2ms 4.1MB 1880ms 7ms rustc 1.84.0
rust 7.rs 525ms 4.8ms 1.9MB 517ms 0ms rustc 1.84.0
zig 1.zig 921ms 1.9ms 1.4MB 910ms 0ms zig 0.13.0
rust 2.rs 1050ms 2.4ms 2.0MB 1037ms 0ms rustc 1.84.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 36ms 0.4ms 4.1MB 107ms 0ms rustc 1.86.0-nightly
rust 7-m.rs 36ms 0.4ms 4.1MB 103ms 7ms rustc 1.84.0
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
rust 8.rs 66ms 0.8ms 2.0MB 57ms 0ms rustc 1.86.0-nightly
rust 2-m.rs 127ms 0.2ms 4.1MB 460ms 3ms rustc 1.84.0
rust 7.rs 134ms 2.4ms 1.9MB 127ms 0ms rustc 1.84.0
zig 1.zig 232ms 0.8ms 1.4MB 220ms 0ms zig 0.13.0
rust 2.rs 265ms 1.3ms 2.0MB 253ms 0ms rustc 1.84.0