Zig VS Rust benchmarks

Current benchmark data was generated on Wed Feb 08 2023, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][2 cores] Intel(R) Xeon(R) Platinum 8171M CPU @ 2.60GHz (Model 85)

* -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 2015ms 13ms 33.7MB 1983ms 13ms rustc 1.67.0
rust 5.rs 2208ms 16ms 33.7MB 2180ms 13ms rustc 1.67.0
rust 3.rs 2379ms 46ms 49.8MB 2343ms 17ms rustc 1.67.0
zig 1.zig 2850ms 12ms 49.1MB 2820ms 13ms zig 0.11.0-dev.1580+a5b34a61a

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 179ms 1.1ms 5.7MB 170ms 0ms rustc 1.67.0
rust 5.rs 200ms 2.5ms 5.8MB 183ms 0ms rustc 1.67.0
rust 3.rs 211ms 2.3ms 7.7MB 190ms 0ms rustc 1.67.0
zig 1.zig 237ms 2.6ms 7.0MB 220ms 0ms zig 0.11.0-dev.1580+a5b34a61a

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 165ms 0.5ms 3.6MB 150ms 0ms rustc 1.67.0
rust 2.rs 685ms 1.5ms 3.8MB 673ms 0ms rustc 1.67.0
zig 1.zig timeout 0.0ms 2.6MB 4983ms 0ms zig 0.11.0-dev.1580+a5b34a61a

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 46ms 0.8ms 2.9MB 37ms 0ms rustc 1.67.0
rust 2.rs 133ms 0.6ms 3.1MB 120ms 0ms rustc 1.67.0
zig 1.zig 975ms 29ms 2.0MB 950ms 7ms zig 0.11.0-dev.1580+a5b34a61a

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 750ms 1.1ms 1.0MB 1453ms 0ms rustc 1.67.0
rust 2-im.rs 1071ms 12ms 1.0MB 2070ms 0ms rustc 1.67.0
zig 2-m.zig 1401ms 16ms 1.1MB 2713ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 5-m.rs 1427ms 22ms 1.1MB 2730ms 0ms rustc 1.67.0
rust 3-i.rs 1492ms 23ms 1.0MB 1473ms 0ms rustc 1.67.0
zig 3-i.zig 1699ms 3.5ms 1.0MB 1687ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 2-i.rs 2205ms 4.9ms 1.0MB 2193ms 0ms rustc 1.67.0
zig 2.zig 2854ms 1.2ms 1.0MB 2843ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 1-m.rs 2866ms 4.7ms 1.0MB 5527ms 0ms rustc 1.67.0
zig 1.zig 3856ms 30ms 1.0MB 3847ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 1.rs 4707ms 34ms 1.0MB 4693ms 0ms rustc 1.67.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 70ms 0.7ms 1.0MB 117ms 0ms rustc 1.67.0
rust 2-im.rs 100ms 3.0ms 1.1MB 170ms 0ms rustc 1.67.0
rust 5-m.rs 125ms 1.7ms 1.0MB 220ms 0ms rustc 1.67.0
rust 3-i.rs 126ms 0.8ms 1.1MB 117ms 0ms rustc 1.67.0
zig 2-m.zig 134ms 1.0ms 1.1MB 233ms 0ms zig 0.11.0-dev.1580+a5b34a61a
zig 3-i.zig 145ms 0.7ms 1.0MB 130ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 2-i.rs 191ms 8.6ms 1.1MB 183ms 0ms rustc 1.67.0
zig 2.zig 242ms 0.2ms 1.0MB 230ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 1-m.rs 258ms 4.6ms 1.1MB 453ms 3ms rustc 1.67.0
zig 1.zig 323ms 0.7ms 1.0MB 310ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 1.rs 394ms 1.2ms 1.1MB 383ms 0ms rustc 1.67.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 165ms 2.4ms 1.0MB 153ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 5c-m.rs 212ms 1.9ms 1.7MB 370ms 7ms rustc 1.69.0-nightly
rust 5-m.rs 224ms 5.8ms 1.7MB 400ms 0ms rustc 1.67.0
rust 1c.rs 257ms 0.4ms 1.0MB 247ms 0ms rustc 1.69.0-nightly
rust 1.rs 314ms 1.1ms 1.0MB 307ms 0ms rustc 1.67.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 22ms 1.6ms 1.0MB 10ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 1c.rs 29ms 0.8ms 1.0MB 20ms 0ms rustc 1.69.0-nightly
rust 5-m.rs 32ms 0.5ms 1.7MB 40ms 0ms rustc 1.67.0
rust 5c-m.rs 33ms 3.0ms 1.7MB 37ms 3ms rustc 1.69.0-nightly
rust 1.rs 35ms 2.0ms 1.0MB 23ms 0ms rustc 1.67.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 2.1ms 0.7ms 0.9MB 0ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 1.rs 2.5ms 0.6ms 1.9MB 0ms 0ms rustc 1.67.0
rust 1.rs 2.6ms 0.8ms 1.0MB 0ms 0ms rustc 1.69.0-nightly

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2.rs 96ms 3.0ms 38.1MB 70ms 10ms rustc 1.67.0
rust 3.rs 96ms 2.4ms 36.2MB 73ms 10ms rustc 1.67.0
zig 1.zig 144ms 5.5ms 14.4MB 123ms 7ms zig 0.11.0-dev.1580+a5b34a61a
rust 1.rs 154ms 1.7ms 75.4MB 100ms 40ms rustc 1.67.0

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2.rs 598ms 0.3ms 257.9MB 460ms 120ms rustc 1.67.0
rust 3.rs 611ms 20ms 258.6MB 460ms 137ms rustc 1.67.0
zig 1.zig 866ms 46ms 75.0MB 810ms 40ms zig 0.11.0-dev.1580+a5b34a61a
rust 1.rs 1117ms 11ms 605.2MB 760ms 340ms rustc 1.67.0

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 422ms 12ms 28.2MB 733ms 17ms rustc 1.67.0
rust 8.rs 743ms 40ms 23.3MB 710ms 13ms rustc 1.67.0
zig 1.zig 1282ms 8.4ms 25.8MB 1240ms 27ms zig 0.11.0-dev.1580+a5b34a61a

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 57ms 1.0ms 15.7MB 77ms 3ms rustc 1.67.0
rust 8.rs 88ms 3.3ms 11.6MB 70ms 7ms rustc 1.67.0
zig 1.zig 144ms 1.9ms 7.5MB 127ms 0ms zig 0.11.0-dev.1580+a5b34a61a

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 59ms 1.7ms 2.8MB 50ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 0-unsafe.rs 65ms 6.5ms 1.8MB 57ms 0ms rustc 1.67.0
rust 1.rs 90ms 3.6ms 2.1MB 80ms 0ms rustc 1.67.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 164ms 1.5ms 2.9MB 150ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 0-unsafe.rs 258ms 14ms 1.1MB 243ms 0ms rustc 1.67.0
rust 1.rs 369ms 2.5ms 1.0MB 360ms 0ms rustc 1.67.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 33ms 8.3ms 1.3MB 23ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 0-unsafe.rs 40ms 2.7ms 1.1MB 30ms 0ms rustc 1.67.0
rust 1.rs 60ms 1.7ms 1.0MB 50ms 0ms rustc 1.67.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 9.rs 435ms 4.1ms 4.9MB 423ms 0ms rustc 1.69.0-nightly
zig 1.zig 457ms 14ms 4.2MB 443ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 8.rs 512ms 3.2ms 4.9MB 497ms 0ms rustc 1.67.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 9.rs 20ms 0.1ms 1.0MB 10ms 0ms rustc 1.69.0-nightly
zig 1.zig 23ms 1.3ms 1.0MB 10ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 8.rs 25ms 1.2ms 1.0MB 13ms 0ms rustc 1.67.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 1082ms 5.4ms 33.7MB 1050ms 17ms rustc 1.67.0
zig 1.zig 1335ms 3.4ms 41.1MB 1300ms 13ms zig 0.11.0-dev.1580+a5b34a61a

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 226ms 4.6ms 9.9MB 207ms 0ms rustc 1.67.0
zig 1.zig 269ms 1.4ms 11.0MB 253ms 0ms zig 0.11.0-dev.1580+a5b34a61a

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 255ms 0.3ms 1.0MB 237ms 0ms rustc 1.67.0
zig 2.zig 308ms 5.8ms 1.1MB 293ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 7-i.rs 376ms 6.0ms 1.0MB 363ms 0ms rustc 1.67.0
rust 3.rs 404ms 0.9ms 1.1MB 390ms 0ms rustc 1.69.0-nightly
rust 2.rs 446ms 30ms 1.1MB 433ms 0ms rustc 1.67.0
zig 1.zig 462ms 6.7ms 1.0MB 453ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 1.rs 503ms 8.7ms 1.1MB 490ms 0ms rustc 1.67.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 29ms 0.5ms 1.0MB 20ms 0ms rustc 1.67.0
zig 2.zig 35ms 0.6ms 1.0MB 27ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 7-i.rs 41ms 0.3ms 1.0MB 30ms 0ms rustc 1.67.0
rust 3.rs 43ms 0.1ms 1.0MB 30ms 0ms rustc 1.69.0-nightly
rust 2.rs 45ms 0.5ms 1.0MB 37ms 0ms rustc 1.67.0
zig 1.zig 50ms 1.5ms 1.0MB 40ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 1.rs 55ms 4.2ms 1.0MB 43ms 0ms rustc 1.67.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2.zig 439ms 0.8ms 6.0MB 423ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 2.rs 497ms 1.2ms 6.6MB 480ms 0ms rustc 1.67.0
zig 1.zig 943ms 42ms 40.1MB 917ms 10ms zig 0.11.0-dev.1580+a5b34a61a
rust 1.rs 1080ms 27ms 40.8MB 1050ms 13ms rustc 1.67.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2.zig 97ms 2.8ms 2.1MB 87ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 2.rs 111ms 0.5ms 3.1MB 100ms 0ms rustc 1.67.0
zig 1.zig 128ms 1.0ms 10.9MB 110ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 1.rs 147ms 6.8ms 11.6MB 133ms 0ms rustc 1.67.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2.rs 1979ms 8.1ms 2.7MB 1890ms 73ms rustc 1.67.0
rust 1.rs 2064ms 22ms 2.8MB 1870ms 173ms rustc 1.67.0
zig 1.zig 2406ms 1.7ms 2.3MB 2373ms 13ms zig 0.11.0-dev.1580+a5b34a61a

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 441ms 3.4ms 2.4MB 423ms 0ms rustc 1.67.0
rust 2.rs 459ms 11ms 2.5MB 447ms 0ms rustc 1.67.0
zig 1.zig 558ms 10ms 1.8MB 547ms 0ms zig 0.11.0-dev.1580+a5b34a61a

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 1083ms 2.6ms 2.5MB 2073ms 3ms rustc 1.69.0-nightly
rust 7-m.rs 1085ms 14ms 2.1MB 2083ms 0ms rustc 1.67.0
zig 2-m.zig 1088ms 3.9ms 1.2MB 2083ms 0ms zig 0.11.0-dev.1580+a5b34a61a
zig 2.zig 2072ms 6.8ms 1.0MB 2063ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 8.rs 2075ms 12ms 2.4MB 2067ms 0ms rustc 1.69.0-nightly
rust 7.rs 2099ms 40ms 2.2MB 2080ms 0ms rustc 1.67.0
rust 2-m.rs 2234ms 16ms 2.3MB 4307ms 3ms rustc 1.67.0
zig 1.zig 4631ms 11ms 1.0MB 4617ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 2.rs timeout 0.0ms 2.0MB 4987ms 0ms rustc 1.67.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 280ms 0.9ms 1.1MB 513ms 0ms rustc 1.67.0
rust 8-m.rs 280ms 2.6ms 2.2MB 510ms 0ms rustc 1.69.0-nightly
zig 2-m.zig 284ms 2.0ms 1.2MB 510ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 7.rs 523ms 1.8ms 1.1MB 510ms 0ms rustc 1.67.0
zig 2.zig 525ms 10ms 1.0MB 513ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 2-m.rs 561ms 0.8ms 2.1MB 1063ms 0ms rustc 1.67.0
rust 8.rs 565ms 14ms 2.1MB 553ms 0ms rustc 1.69.0-nightly
zig 1.zig 1156ms 3.2ms 1.0MB 1143ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 2.rs 1966ms 23ms 1.0MB 1950ms 0ms rustc 1.67.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 77ms 1.9ms 1.1MB 127ms 0ms rustc 1.69.0-nightly
rust 7-m.rs 79ms 1.6ms 1.0MB 123ms 0ms rustc 1.67.0
zig 2-m.zig 79ms 1.5ms 1.1MB 127ms 0ms zig 0.11.0-dev.1580+a5b34a61a
zig 2.zig 136ms 2.1ms 1.6MB 127ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 8.rs 137ms 2.1ms 1.1MB 123ms 0ms rustc 1.69.0-nightly
rust 7.rs 138ms 2.1ms 1.1MB 130ms 0ms rustc 1.67.0
rust 2-m.rs 151ms 2.4ms 1.0MB 267ms 0ms rustc 1.67.0
zig 1.zig 294ms 0.5ms 1.0MB 280ms 0ms zig 0.11.0-dev.1580+a5b34a61a
rust 2.rs 491ms 0.1ms 1.0MB 480ms 0ms rustc 1.67.0