Rust VS Zig benchmarks

Current benchmark data was generated on Fri Sep 30 2022, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][2 cores] Intel(R) Xeon(R) Platinum 8272CL 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.)

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 137ms 0.7ms 0.6MB 130ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 5-m.rs 183ms 3.3ms 1.2MB 327ms 0ms rustc 1.64.0
rust 5c-m.rs 183ms 2.1ms 1.2MB 317ms 0ms rustc 1.66.0-nightly
rust 1c.rs 220ms 0.2ms 0.7MB 210ms 0ms rustc 1.66.0-nightly
rust 1.rs 262ms 1.2ms 0.6MB 250ms 0ms rustc 1.64.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 16ms 0.1ms 0.6MB 10ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 1c.rs 25ms 1.9ms 0.6MB 17ms 0ms rustc 1.66.0-nightly
rust 5c-m.rs 27ms 3.2ms 1.3MB 33ms 0ms rustc 1.66.0-nightly
rust 5-m.rs 29ms 1.9ms 1.3MB 33ms 0ms rustc 1.64.0
rust 1.rs 30ms 1.8ms 0.6MB 20ms 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 1.8ms 0.4ms 0.6MB 0ms 0ms rustc 1.66.0-nightly
rust 1.rs 2.0ms 0.8ms 0.6MB 0ms 0ms rustc 1.64.0
zig 1.zig 2.3ms 0.7ms 0.6MB 0ms 0ms zig 0.10.0-dev.4198+5e0d8a435

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 9.rs 360ms 1.1ms 4.9MB 350ms 0ms rustc 1.66.0-nightly
zig 1.zig 365ms 0.2ms 4.0MB 350ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 8.rs 501ms 0.8ms 4.9MB 490ms 0ms rustc 1.64.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 18ms 0.8ms 0.6MB 10ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 9.rs 18ms 0.6ms 0.6MB 10ms 0ms rustc 1.66.0-nightly
rust 8.rs 24ms 0.3ms 0.6MB 10ms 0ms rustc 1.64.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 207ms 1.2ms 0.6MB 197ms 0ms rustc 1.64.0
zig 2.zig 260ms 4.4ms 0.7MB 247ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 7-i.rs 287ms 0.9ms 0.6MB 277ms 0ms rustc 1.64.0
rust 3.rs 342ms 0.5ms 0.7MB 330ms 0ms rustc 1.66.0-nightly
rust 2.rs 359ms 3.4ms 0.6MB 347ms 0ms rustc 1.64.0
zig 1.zig 381ms 2.3ms 0.7MB 370ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 1.rs 415ms 5.8ms 0.6MB 407ms 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 24ms 1.2ms 0.6MB 13ms 0ms rustc 1.64.0
zig 2.zig 28ms 0.5ms 0.7MB 20ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 7-i.rs 31ms 0.3ms 0.6MB 20ms 0ms rustc 1.64.0
rust 3.rs 37ms 0.5ms 0.7MB 30ms 0ms rustc 1.66.0-nightly
rust 2.rs 38ms 0.1ms 0.6MB 30ms 0ms rustc 1.64.0
zig 1.zig 41ms 0.3ms 0.7MB 30ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 1.rs 45ms 0.9ms 0.6MB 33ms 0ms rustc 1.64.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 889ms 1.1ms 2.6MB 1713ms 0ms rustc 1.66.0-nightly
rust 7-m.rs 892ms 0.5ms 2.2MB 1720ms 0ms rustc 1.64.0
zig 2-m.zig 910ms 2.3ms 1.7MB 1743ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 8.rs 1718ms 0.1ms 2.5MB 1703ms 0ms rustc 1.66.0-nightly
rust 7.rs 1719ms 0.9ms 2.2MB 1707ms 0ms rustc 1.64.0
zig 2.zig 1724ms 0.6ms 1.7MB 1710ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 2-m.rs 1831ms 13ms 4.0MB 3530ms 3ms rustc 1.64.0
zig 1.zig 3843ms 0.5ms 0.7MB 3830ms 0ms zig 0.10.0-dev.4198+5e0d8a435
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 8-m.rs 233ms 1.4ms 2.3MB 427ms 0ms rustc 1.66.0-nightly
rust 7-m.rs 233ms 0.5ms 0.7MB 427ms 0ms rustc 1.64.0
zig 2-m.zig 248ms 13ms 0.8MB 430ms 3ms zig 0.10.0-dev.4198+5e0d8a435
rust 8.rs 432ms 0.3ms 2.2MB 420ms 0ms rustc 1.66.0-nightly
zig 2.zig 434ms 0.2ms 0.7MB 427ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 7.rs 435ms 1.6ms 0.6MB 423ms 0ms rustc 1.64.0
rust 2-m.rs 465ms 0.7ms 2.3MB 877ms 0ms rustc 1.64.0
zig 1.zig 951ms 0.8ms 0.7MB 940ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 2.rs 1551ms 0.4ms 0.6MB 1540ms 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 64ms 0.7ms 2.2MB 107ms 0ms rustc 1.66.0-nightly
rust 7-m.rs 66ms 2.4ms 0.7MB 110ms 0ms rustc 1.64.0
zig 2-m.zig 68ms 2.4ms 0.8MB 103ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 8.rs 111ms 0.9ms 2.2MB 100ms 0ms rustc 1.66.0-nightly
rust 7.rs 111ms 1.0ms 0.6MB 100ms 0ms rustc 1.64.0
zig 2.zig 112ms 1.3ms 0.7MB 100ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 2-m.rs 125ms 1.5ms 0.7MB 217ms 0ms rustc 1.64.0
zig 1.zig 244ms 0.4ms 0.7MB 233ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 2.rs 391ms 1.3ms 0.6MB 380ms 0ms rustc 1.64.0

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 1768ms 38ms 33.7MB 1743ms 10ms rustc 1.64.0
rust 5.rs 1899ms 6.4ms 33.8MB 1880ms 3ms rustc 1.64.0
rust 3.rs 2017ms 65ms 49.9MB 1977ms 20ms rustc 1.64.0
zig 1.zig 2436ms 37ms 49.1MB 2407ms 13ms zig 0.10.0-dev.4198+5e0d8a435

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 157ms 0.7ms 5.6MB 143ms 0ms rustc 1.64.0
rust 3.rs 167ms 4.4ms 7.8MB 153ms 0ms rustc 1.64.0
rust 5.rs 168ms 0.6ms 6.0MB 157ms 0ms rustc 1.64.0
zig 1.zig 197ms 0.4ms 7.2MB 183ms 0ms zig 0.10.0-dev.4198+5e0d8a435

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-m.rs 937ms 22ms 6.0MB 1790ms 30ms rustc 1.64.0
rust 5-m.rs 1022ms 195ms 5.4MB 1947ms 27ms rustc 1.64.0
rust 3.rs 1817ms 12ms 6.5MB 1773ms 27ms rustc 1.64.0
rust 4.rs 3031ms 1.3ms 4.5MB 3020ms 0ms rustc 1.64.0
rust 1-m.rs 3311ms 68ms 5.3MB 6430ms 60ms rustc 1.64.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-m.rs 76ms 2.3ms 3.0MB 117ms 10ms rustc 1.64.0
rust 5-m.rs 94ms 9.1ms 2.8MB 160ms 0ms rustc 1.64.0
rust 3.rs 112ms 0.5ms 3.1MB 97ms 0ms rustc 1.64.0
rust 4.rs 200ms 1.7ms 2.6MB 183ms 0ms rustc 1.64.0
rust 1-m.rs 222ms 3.7ms 2.9MB 400ms 10ms rustc 1.64.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 140ms 0.9ms 3.7MB 130ms 0ms rustc 1.64.0
rust 2.rs 575ms 1.8ms 3.7MB 560ms 0ms rustc 1.64.0
zig 1.zig 4859ms 2.4ms 2.7MB 4820ms 17ms zig 0.10.0-dev.4198+5e0d8a435

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 39ms 0.5ms 3.0MB 30ms 0ms rustc 1.64.0
rust 2.rs 112ms 0.5ms 3.1MB 100ms 0ms rustc 1.64.0
zig 1.zig 802ms 0.7ms 2.1MB 783ms 0ms zig 0.10.0-dev.4198+5e0d8a435

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 649ms 0.6ms 0.7MB 1253ms 0ms rustc 1.64.0
rust 2-im.rs 987ms 13ms 0.7MB 1893ms 0ms rustc 1.64.0
rust 3-i.rs 1213ms 9.5ms 0.6MB 1203ms 0ms rustc 1.64.0
rust 5-m.rs 1217ms 22ms 0.7MB 2327ms 0ms rustc 1.64.0
zig 2-m.zig 1224ms 8.4ms 0.8MB 2360ms 0ms zig 0.10.0-dev.4198+5e0d8a435
zig 3-i.zig 1348ms 0.9ms 0.6MB 1337ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 2-i.rs 1797ms 0.7ms 0.6MB 1787ms 0ms rustc 1.64.0
rust 1-m.rs 2029ms 11ms 0.7MB 3927ms 0ms rustc 1.64.0
zig 2.zig 2332ms 1.5ms 0.6MB 2320ms 0ms zig 0.10.0-dev.4198+5e0d8a435
zig 1.zig 3027ms 6.5ms 0.6MB 3017ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 1.rs 3997ms 10ms 0.6MB 3983ms 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 62ms 0.9ms 0.7MB 97ms 0ms rustc 1.64.0
rust 2-im.rs 90ms 2.2ms 0.7MB 150ms 0ms rustc 1.64.0
rust 3-i.rs 103ms 0.5ms 0.6MB 90ms 0ms rustc 1.64.0
rust 5-m.rs 112ms 0.5ms 0.7MB 190ms 0ms rustc 1.64.0
zig 3-i.zig 115ms 0.9ms 0.6MB 103ms 0ms zig 0.10.0-dev.4198+5e0d8a435
zig 2-m.zig 119ms 3.5ms 0.7MB 200ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 2-i.rs 153ms 0.6ms 0.6MB 140ms 0ms rustc 1.64.0
rust 1-m.rs 182ms 1.3ms 0.7MB 320ms 0ms rustc 1.64.0
zig 2.zig 200ms 0.5ms 0.6MB 190ms 0ms zig 0.10.0-dev.4198+5e0d8a435
zig 1.zig 253ms 0.5ms 0.6MB 240ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 1.rs 337ms 1.1ms 0.6MB 327ms 0ms rustc 1.64.0

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2-http2.rs 363ms 82ms 50.3MB 463ms 123ms rustc 1.64.0
rust 2-m.rs 556ms 4.6ms 112.8MB 313ms 553ms rustc 1.64.0
rust 1-http2.rs 1074ms 262ms 88.0MB 1423ms 480ms rustc 1.64.0
rust 1.rs timeout 0.0ms 0.0MB 0ms 0ms rustc 1.64.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 79ms 20ms 16.7MB 27ms 27ms rustc 1.64.0
rust 2.rs 138ms 6.4ms 30.6MB 43ms 97ms rustc 1.64.0
rust 1-http2.rs 358ms 54ms 28.3MB 500ms 103ms rustc 1.64.0
rust 2-http2.rs timeout 0.0ms 0.0MB 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 84ms 1.6ms 36.4MB 57ms 13ms rustc 1.64.0
rust 2.rs 85ms 0.4ms 38.1MB 57ms 10ms rustc 1.64.0
zig 1.zig 109ms 0.3ms 10.3MB 87ms 7ms zig 0.10.0-dev.4198+5e0d8a435
rust 1.rs 147ms 0.9ms 75.5MB 103ms 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 518ms 0.9ms 258.6MB 397ms 107ms rustc 1.64.0
rust 2.rs 533ms 0.2ms 258.5MB 403ms 113ms rustc 1.64.0
zig 1.zig 668ms 4.4ms 81.4MB 613ms 37ms zig 0.10.0-dev.4198+5e0d8a435
rust 1.rs 954ms 2.4ms 605.5MB 663ms 273ms 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 353ms 13ms 28.7MB 630ms 13ms rustc 1.64.0
rust 8.rs 636ms 5.3ms 24.0MB 610ms 10ms rustc 1.64.0
zig 1.zig 1155ms 7.6ms 23.6MB 1117ms 20ms zig 0.10.0-dev.4198+5e0d8a435

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 52ms 4.6ms 16.1MB 63ms 10ms rustc 1.64.0
rust 8.rs 81ms 2.7ms 11.5MB 67ms 0ms rustc 1.64.0
zig 1.zig 128ms 0.4ms 9.2MB 117ms 0ms zig 0.10.0-dev.4198+5e0d8a435

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 50ms 1.2ms 2.9MB 40ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 0-unsafe.rs 53ms 0.9ms 0.6MB 50ms 0ms rustc 1.64.0
rust 1.rs 83ms 5.1ms 2.2MB 73ms 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 138ms 0.4ms 2.8MB 127ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 0-unsafe.rs 208ms 10ms 0.6MB 197ms 0ms rustc 1.64.0
rust 1.rs 300ms 24ms 2.1MB 287ms 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 25ms 3.4ms 1.5MB 10ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 0-unsafe.rs 32ms 0.8ms 0.6MB 20ms 0ms rustc 1.64.0
rust 1.rs 45ms 0.5ms 0.6MB 37ms 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 894ms 6.7ms 33.8MB 863ms 13ms rustc 1.64.0
zig 1.zig 1129ms 2.8ms 41.1MB 1100ms 13ms zig 0.10.0-dev.4198+5e0d8a435

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 186ms 1.2ms 9.8MB 170ms 0ms rustc 1.64.0
zig 1.zig 229ms 0.8ms 11.3MB 213ms 3ms zig 0.10.0-dev.4198+5e0d8a435

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2.zig 377ms 1.1ms 6.1MB 367ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 2.rs 461ms 0.5ms 6.7MB 447ms 0ms rustc 1.64.0
rust 1.rs 1352ms 162ms 40.9MB 1327ms 7ms rustc 1.64.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2.zig 79ms 0.6ms 2.5MB 70ms 0ms zig 0.10.0-dev.4198+5e0d8a435
rust 2.rs 105ms 0.7ms 3.1MB 90ms 0ms rustc 1.64.0
rust 1.rs 123ms 2.3ms 11.6MB 107ms 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 1738ms 3.3ms 2.8MB 1573ms 150ms rustc 1.64.0
rust 2.rs 1805ms 1.0ms 2.7MB 1737ms 43ms rustc 1.64.0
zig 1.zig 1927ms 1.2ms 2.4MB 1903ms 7ms zig 0.10.0-dev.4198+5e0d8a435

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 374ms 0.9ms 2.4MB 357ms 3ms rustc 1.64.0
rust 2.rs 409ms 0.3ms 2.6MB 397ms 0ms rustc 1.64.0
zig 1.zig 440ms 0.7ms 2.0MB 423ms 0ms zig 0.10.0-dev.4198+5e0d8a435

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 566ms 0.2ms 77.9MB 743ms 20ms rustc 1.64.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 63ms 0.6ms 11.2MB 70ms 0ms rustc 1.64.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0.rs 135ms 0.4ms 0.6MB 130ms 0ms rustc 1.64.0
rust 1.rs 1855ms 6.0ms 0.6MB 1843ms 0ms rustc 1.64.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0.rs 36ms 0.5ms 0.6MB 27ms 0ms rustc 1.64.0
rust 1.rs 466ms 0.4ms 0.7MB 453ms 0ms rustc 1.64.0