Zig VS Rust benchmarks

Current benchmark data was generated on Mon Oct 03 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
rust 4.rs 1546ms 1.5ms 33.7MB 1523ms 7ms rustc 1.64.0
rust 5.rs 1738ms 4.2ms 33.8MB 1713ms 3ms rustc 1.64.0
rust 3.rs 1832ms 14ms 49.8MB 1807ms 13ms rustc 1.64.0
zig 1.zig 2047ms 16ms 49.2MB 2020ms 10ms zig 0.10.0-dev.4213+91b05ad47

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 141ms 1.9ms 5.7MB 130ms 0ms rustc 1.64.0
rust 5.rs 158ms 1.3ms 5.6MB 150ms 0ms rustc 1.64.0
rust 3.rs 164ms 3.7ms 7.9MB 147ms 0ms rustc 1.64.0
zig 1.zig 175ms 1.3ms 7.1MB 160ms 0ms zig 0.10.0-dev.4213+91b05ad47

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 147ms 0.7ms 3.6MB 140ms 0ms rustc 1.64.0
rust 2.rs 600ms 1.4ms 3.7MB 587ms 0ms rustc 1.64.0
zig 1.zig 3830ms 2.0ms 2.7MB 3800ms 13ms zig 0.10.0-dev.4213+91b05ad47

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 41ms 0.7ms 3.0MB 30ms 0ms rustc 1.64.0
rust 2.rs 113ms 0.1ms 3.3MB 107ms 0ms rustc 1.64.0
zig 1.zig 636ms 0.7ms 2.1MB 613ms 7ms zig 0.10.0-dev.4213+91b05ad47

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 755ms 3.8ms 0.7MB 1453ms 0ms rustc 1.64.0
rust 2-im.rs 1081ms 8.3ms 0.7MB 2090ms 0ms rustc 1.64.0
rust 5-m.rs 1214ms 13ms 0.7MB 2353ms 0ms rustc 1.64.0
zig 2-m.zig 1322ms 17ms 0.7MB 2570ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 3-i.rs 1434ms 3.2ms 0.6MB 1420ms 0ms rustc 1.64.0
zig 3-i.zig 1563ms 0.9ms 0.6MB 1550ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 1-m.rs 1943ms 12ms 0.7MB 3797ms 0ms rustc 1.64.0
rust 2-i.rs 1996ms 0.3ms 0.6MB 1987ms 0ms rustc 1.64.0
zig 2.zig 2503ms 2.0ms 0.6MB 2490ms 0ms zig 0.10.0-dev.4213+91b05ad47
zig 1.zig 3421ms 7.9ms 0.6MB 3410ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 1.rs 3854ms 54ms 0.6MB 3843ms 0ms rustc 1.64.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 68ms 0.9ms 0.7MB 113ms 0ms rustc 1.64.0
rust 2-im.rs 97ms 2.2ms 0.7MB 163ms 0ms rustc 1.64.0
rust 5-m.rs 111ms 2.3ms 0.7MB 190ms 0ms rustc 1.64.0
rust 3-i.rs 122ms 0.6ms 0.6MB 110ms 0ms rustc 1.64.0
zig 2-m.zig 123ms 1.6ms 0.7MB 220ms 0ms zig 0.10.0-dev.4213+91b05ad47
zig 3-i.zig 132ms 0.4ms 0.6MB 120ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 2-i.rs 168ms 1.2ms 0.6MB 160ms 0ms rustc 1.64.0
rust 1-m.rs 171ms 0.2ms 0.7MB 310ms 0ms rustc 1.64.0
zig 2.zig 212ms 1.5ms 0.6MB 200ms 0ms zig 0.10.0-dev.4213+91b05ad47
zig 1.zig 285ms 1.0ms 0.6MB 273ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 1.rs 321ms 0.9ms 0.6MB 310ms 0ms rustc 1.64.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 157ms 3.1ms 0.6MB 140ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 5c-m.rs 182ms 3.7ms 1.3MB 317ms 3ms rustc 1.66.0-nightly
rust 5-m.rs 202ms 2.7ms 1.2MB 360ms 3ms rustc 1.64.0
rust 1c.rs 227ms 0.9ms 0.6MB 217ms 0ms rustc 1.66.0-nightly
rust 1.rs 316ms 1.8ms 0.6MB 303ms 0ms rustc 1.64.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 18ms 0.3ms 0.6MB 10ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 1c.rs 27ms 0.4ms 0.7MB 17ms 0ms rustc 1.66.0-nightly
rust 5c-m.rs 28ms 2.7ms 1.2MB 37ms 0ms rustc 1.66.0-nightly
rust 5-m.rs 29ms 1.0ms 1.2MB 37ms 0ms rustc 1.64.0
rust 1.rs 35ms 0.5ms 0.6MB 23ms 0ms rustc 1.64.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 1.9ms 0.8ms 0.6MB 0ms 0ms rustc 1.66.0-nightly
zig 1.zig 2.0ms 0.7ms 0.6MB 0ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 1.rs 2.2ms 0.8ms 0.6MB 0ms 0ms rustc 1.64.0

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3.rs 75ms 0.7ms 36.4MB 53ms 7ms rustc 1.64.0
rust 2.rs 76ms 0.9ms 38.0MB 47ms 13ms rustc 1.64.0
zig 1.zig 113ms 0.8ms 12.0MB 97ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 1.rs 122ms 1.8ms 75.3MB 80ms 27ms rustc 1.64.0

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3.rs 505ms 1.0ms 258.5MB 400ms 90ms rustc 1.64.0
rust 2.rs 513ms 0.6ms 257.5MB 407ms 93ms rustc 1.64.0
zig 1.zig 685ms 0.2ms 81.0MB 640ms 27ms zig 0.10.0-dev.4213+91b05ad47
rust 1.rs 856ms 1.4ms 605.7MB 603ms 237ms rustc 1.64.0

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 343ms 10ms 28.9MB 593ms 10ms rustc 1.64.0
rust 8.rs 621ms 29ms 23.1MB 593ms 13ms rustc 1.64.0
zig 1.zig 1230ms 5.9ms 21.7MB 1200ms 13ms zig 0.10.0-dev.4213+91b05ad47

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 48ms 1.5ms 16.4MB 60ms 3ms rustc 1.64.0
rust 8.rs 75ms 1.4ms 11.7MB 53ms 7ms rustc 1.64.0
zig 1.zig 136ms 1.3ms 9.2MB 120ms 0ms zig 0.10.0-dev.4213+91b05ad47

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 44ms 0.5ms 2.9MB 33ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 0-unsafe.rs 63ms 2.4ms 0.6MB 53ms 0ms rustc 1.64.0
rust 1.rs 87ms 4.7ms 2.1MB 77ms 0ms rustc 1.64.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 127ms 3.7ms 2.8MB 117ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 0-unsafe.rs 205ms 4.3ms 0.6MB 190ms 0ms rustc 1.64.0
rust 1.rs 290ms 20ms 2.1MB 280ms 0ms rustc 1.64.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 21ms 0.6ms 1.6MB 10ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 0-unsafe.rs 35ms 0.9ms 0.6MB 27ms 0ms rustc 1.64.0
rust 1.rs 44ms 0.1ms 0.6MB 40ms 0ms rustc 1.64.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 9.rs 414ms 0.8ms 4.8MB 400ms 0ms rustc 1.66.0-nightly
zig 1.zig 422ms 0.6ms 4.3MB 410ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 8.rs 580ms 0.1ms 4.9MB 567ms 0ms rustc 1.64.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 20ms 0.6ms 0.6MB 10ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 9.rs 21ms 1.3ms 0.6MB 10ms 0ms rustc 1.66.0-nightly
rust 8.rs 31ms 5.0ms 0.6MB 23ms 0ms rustc 1.64.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 892ms 8.0ms 33.9MB 867ms 13ms rustc 1.64.0
zig 1.zig 1031ms 8.8ms 41.2MB 1007ms 7ms zig 0.10.0-dev.4213+91b05ad47

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 185ms 2.7ms 9.9MB 170ms 0ms rustc 1.64.0
zig 1.zig 209ms 1.6ms 11.2MB 190ms 0ms zig 0.10.0-dev.4213+91b05ad47

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 252ms 0.2ms 0.6MB 240ms 0ms rustc 1.64.0
zig 2.zig 302ms 0.2ms 0.7MB 290ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 7-i.rs 305ms 0.5ms 0.6MB 290ms 0ms rustc 1.64.0
rust 3.rs 338ms 0.2ms 0.6MB 330ms 0ms rustc 1.66.0-nightly
rust 2.rs 341ms 5.7ms 0.6MB 330ms 0ms rustc 1.64.0
zig 1.zig 368ms 3.6ms 0.7MB 357ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 1.rs 384ms 0.6ms 0.6MB 370ms 0ms rustc 1.64.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 28ms 0.8ms 0.6MB 20ms 0ms rustc 1.64.0
zig 2.zig 33ms 0.4ms 0.7MB 23ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 7-i.rs 33ms 0.5ms 0.6MB 23ms 0ms rustc 1.64.0
rust 3.rs 36ms 0.5ms 0.7MB 30ms 0ms rustc 1.66.0-nightly
rust 2.rs 38ms 2.1ms 0.6MB 30ms 0ms rustc 1.64.0
zig 1.zig 39ms 1.1ms 0.7MB 30ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 1.rs 41ms 0.6ms 0.6MB 30ms 0ms rustc 1.64.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2.zig 422ms 1.6ms 6.1MB 410ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 2.rs 462ms 1.4ms 6.7MB 450ms 0ms rustc 1.64.0
rust 1.rs 736ms 47ms 40.9MB 713ms 7ms rustc 1.64.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2.zig 94ms 0.5ms 2.5MB 87ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 2.rs 107ms 1.4ms 3.1MB 97ms 0ms rustc 1.64.0
rust 1.rs 131ms 1.2ms 11.5MB 120ms 0ms rustc 1.64.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 1934ms 3.2ms 2.8MB 1750ms 167ms rustc 1.64.0
rust 2.rs 1947ms 0.7ms 2.9MB 1877ms 53ms rustc 1.64.0
zig 1.zig 2198ms 1.2ms 2.4MB 2177ms 7ms zig 0.10.0-dev.4213+91b05ad47

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 393ms 1.0ms 2.6MB 377ms 0ms rustc 1.64.0
rust 2.rs 435ms 0.5ms 2.6MB 423ms 0ms rustc 1.64.0
zig 1.zig 497ms 3.6ms 2.0MB 480ms 0ms zig 0.10.0-dev.4213+91b05ad47

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 1059ms 1.5ms 2.3MB 2053ms 0ms rustc 1.64.0
zig 2-m.zig 1066ms 3.0ms 1.8MB 2053ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 8-m.rs 1069ms 15ms 2.5MB 2047ms 7ms rustc 1.66.0-nightly
rust 7.rs 2060ms 0.1ms 2.1MB 2050ms 0ms rustc 1.64.0
rust 8.rs 2060ms 0.2ms 2.5MB 2050ms 0ms rustc 1.66.0-nightly
zig 2.zig 2063ms 2.2ms 1.6MB 2050ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 2-m.rs 2134ms 15ms 2.2MB 4147ms 0ms rustc 1.64.0
zig 1.zig 4578ms 0.9ms 1.6MB 4567ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 2.rs timeout 0.0ms 0.0MB 0ms 0ms rustc 1.64.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 273ms 0.8ms 0.7MB 507ms 0ms rustc 1.64.0
zig 2-m.zig 277ms 0.8ms 0.7MB 507ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 8-m.rs 277ms 5.0ms 2.4MB 513ms 0ms rustc 1.66.0-nightly
rust 8.rs 517ms 0.3ms 2.2MB 507ms 0ms rustc 1.66.0-nightly
rust 7.rs 518ms 0.3ms 0.6MB 510ms 0ms rustc 1.64.0
zig 2.zig 519ms 2.7ms 0.7MB 510ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 2-m.rs 540ms 1.6ms 2.2MB 1030ms 0ms rustc 1.64.0
zig 1.zig 1148ms 1.1ms 0.7MB 1133ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 2.rs 1707ms 4.3ms 0.6MB 1697ms 0ms rustc 1.64.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 76ms 1.1ms 2.3MB 127ms 0ms rustc 1.66.0-nightly
rust 7-m.rs 77ms 2.6ms 0.7MB 130ms 0ms rustc 1.64.0
zig 2-m.zig 78ms 3.8ms 0.8MB 120ms 0ms zig 0.10.0-dev.4213+91b05ad47
zig 2.zig 132ms 0.3ms 0.7MB 120ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 7.rs 132ms 0.9ms 0.6MB 120ms 0ms rustc 1.64.0
rust 8.rs 134ms 2.9ms 2.2MB 120ms 0ms rustc 1.66.0-nightly
rust 2-m.rs 143ms 0.5ms 0.7MB 250ms 3ms rustc 1.64.0
zig 1.zig 289ms 0.1ms 0.7MB 280ms 0ms zig 0.10.0-dev.4213+91b05ad47
rust 2.rs 431ms 1.5ms 0.6MB 420ms 0ms rustc 1.64.0