Programming Language and compiler
Benchmarks

Rust VS C benchmarks

Current benchmark data was generated on Thu Feb 01 2024, 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.)

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5c-m.rs 90ms 0.4ms 4.8MB 237ms 0ms rustc 1.77.0-nightly
rust 5-m.rs 99ms 1.2ms 6.5MB 323ms 3ms rustc 1.75.0
rust 1c.rs 164ms 0.5ms 1.9MB 150ms 0ms rustc 1.77.0-nightly
rust 1.rs 223ms 0.3ms 1.9MB 210ms 0ms rustc 1.75.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5c-m.rs 16ms 0.3ms 6.5MB 20ms 0ms rustc 1.77.0-nightly
rust 5-m.rs 17ms 0.2ms 6.4MB 30ms 0ms rustc 1.75.0
rust 1c.rs 19ms 0.5ms 1.9MB 10ms 0ms rustc 1.77.0-nightly
rust 1.rs 25ms 0.7ms 1.9MB 17ms 0ms rustc 1.75.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 1.1ms 0.1ms 1.4MB 0ms 0ms zigcc 0.12.0-dev.2341+92211135f
rust 1.rs 1.2ms 0.1ms 1.9MB 0ms 0ms rustc 1.75.0
rust 1.rs 1.3ms 0.1ms 1.9MB 0ms 0ms rustc 1.77.0-nightly
c 1.c 1.3ms 0.1ms 2.1MB 0ms 0ms gcc 13.2.0
c 1.c 1.5ms 0.3ms 2.1MB 0ms 0ms clang 14.0.0-1ubuntu1.1

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 9.rs 247ms 1.9ms 4.9MB 237ms 0ms rustc 1.77.0-nightly
rust 8.rs 296ms 1.9ms 4.9MB 287ms 0ms rustc 1.75.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 9.rs 12ms 0.1ms 2.0MB 10ms 0ms rustc 1.77.0-nightly
rust 8.rs 15ms 0.3ms 2.0MB 10ms 0ms rustc 1.75.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 168ms 9.4ms 1.9MB 157ms 0ms rustc 1.75.0
rust 7-i.rs 222ms 0.8ms 1.9MB 210ms 0ms rustc 1.75.0
c 8-i.c 245ms 0.5ms 1.5MB 233ms 0ms zigcc 0.12.0-dev.2341+92211135f
c 8-i.c 255ms 1.1ms 2.3MB 243ms 0ms gcc 13.2.0
rust 3.rs 285ms 0.7ms 1.9MB 277ms 0ms rustc 1.77.0-nightly
rust 2.rs 288ms 0.4ms 1.8MB 273ms 0ms rustc 1.75.0
c 5.c 297ms 0.4ms 1.5MB 287ms 0ms zigcc 0.12.0-dev.2341+92211135f
c 8-i.c 301ms 1.9ms 2.1MB 290ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 309ms 0.5ms 2.3MB 300ms 0ms gcc 13.2.0
c 2.c 311ms 1.1ms 1.5MB 300ms 0ms zigcc 0.12.0-dev.2341+92211135f
c 5.c 311ms 1.0ms 2.3MB 300ms 0ms gcc 13.2.0
c 5.c 314ms 1.5ms 2.1MB 303ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 318ms 3.6ms 2.1MB 303ms 0ms clang 14.0.0-1ubuntu1.1
rust 1.rs 338ms 1.1ms 1.9MB 330ms 0ms rustc 1.75.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 19ms 1.1ms 1.9MB 10ms 0ms rustc 1.75.0
rust 7-i.rs 25ms 0.5ms 1.9MB 13ms 0ms rustc 1.75.0
c 8-i.c 27ms 0.1ms 1.5MB 20ms 0ms zigcc 0.12.0-dev.2341+92211135f
c 8-i.c 28ms 0.5ms 2.3MB 20ms 0ms gcc 13.2.0
rust 3.rs 31ms 0.2ms 1.8MB 20ms 0ms rustc 1.77.0-nightly
rust 2.rs 31ms 0.1ms 1.8MB 20ms 0ms rustc 1.75.0
c 5.c 32ms 0.4ms 1.5MB 20ms 0ms zigcc 0.12.0-dev.2341+92211135f
c 2.c 33ms 0.3ms 2.3MB 23ms 0ms gcc 13.2.0
c 8-i.c 33ms 1.6ms 2.1MB 27ms 0ms clang 14.0.0-1ubuntu1.1
c 5.c 33ms 0.5ms 2.3MB 27ms 0ms gcc 13.2.0
c 2.c 34ms 0.8ms 1.5MB 27ms 0ms zigcc 0.12.0-dev.2341+92211135f
c 2.c 34ms 0.9ms 2.1MB 27ms 0ms clang 14.0.0-1ubuntu1.1
c 5.c 34ms 1.1ms 2.1MB 27ms 0ms clang 14.0.0-1ubuntu1.1
rust 1.rs 37ms 1.1ms 1.8MB 30ms 0ms rustc 1.75.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 525ms 0.4ms 6.3MB 2023ms 3ms rustc 1.77.0-nightly
c 4-m.c 947ms 11ms 4.1MB 3703ms 0ms gcc 13.2.0
c 6-im.c 981ms 47ms 4.1MB 3790ms 0ms gcc 13.2.0
rust 7-m.rs 997ms 0.9ms 6.2MB 3887ms 3ms rustc 1.75.0
c 6-im.c 1003ms 11ms 9.1MB 3920ms 3ms clang 14.0.0-1ubuntu1.1
rust 8.rs 1075ms 1.1ms 2.3MB 1063ms 0ms rustc 1.77.0-nightly
c 4-m.c 1117ms 3.7ms 5.1MB 4367ms 10ms clang 14.0.0-1ubuntu1.1
c 5-im.c 1145ms 6.7ms 4.1MB 4493ms 0ms gcc 13.2.0
c 5-im.c 1335ms 18ms 5.3MB 5220ms 13ms clang 14.0.0-1ubuntu1.1
c 3-m.c 1825ms 3.8ms 7.3MB 7183ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 1933ms 0.6ms 4.1MB 7637ms 3ms gcc 13.2.0
rust 2-m.rs 1935ms 1.0ms 6.2MB 7583ms 13ms rustc 1.75.0
rust 7.rs 2068ms 5.9ms 2.0MB 2063ms 0ms rustc 1.75.0
rust 2.rs 4161ms 0.9ms 2.0MB 4150ms 0ms rustc 1.75.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 135ms 0.6ms 6.2MB 497ms 0ms rustc 1.77.0-nightly
c 4-m.c 246ms 0.5ms 4.1MB 937ms 0ms gcc 13.2.0
c 6-im.c 252ms 6.4ms 4.0MB 957ms 0ms gcc 13.2.0
rust 7-m.rs 255ms 0.2ms 6.1MB 947ms 7ms rustc 1.75.0
c 6-im.c 258ms 0.1ms 9.2MB 973ms 3ms clang 14.0.0-1ubuntu1.1
rust 8.rs 272ms 1.1ms 2.0MB 260ms 0ms rustc 1.77.0-nightly
c 4-m.c 288ms 1.9ms 7.0MB 1090ms 3ms clang 14.0.0-1ubuntu1.1
c 5-im.c 297ms 1.3ms 4.0MB 1130ms 0ms gcc 13.2.0
c 5-im.c 340ms 0.0ms 7.3MB 1300ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 462ms 0.4ms 5.3MB 1787ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 487ms 1.0ms 4.0MB 1893ms 0ms gcc 13.2.0
rust 2-m.rs 488ms 0.9ms 8.1MB 1880ms 3ms rustc 1.75.0
rust 7.rs 517ms 1.8ms 1.9MB 507ms 0ms rustc 1.75.0
rust 2.rs 1043ms 0.9ms 2.0MB 1030ms 0ms rustc 1.75.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 38ms 0.4ms 6.1MB 113ms 0ms rustc 1.77.0-nightly
rust 7-m.rs 69ms 0.5ms 6.1MB 227ms 10ms rustc 1.75.0
c 4-m.c 69ms 0.7ms 4.1MB 243ms 0ms gcc 13.2.0
c 6-im.c 70ms 0.0ms 4.0MB 247ms 0ms gcc 13.2.0
rust 8.rs 71ms 0.4ms 1.9MB 60ms 0ms rustc 1.77.0-nightly
c 6-im.c 72ms 1.1ms 7.1MB 247ms 0ms clang 14.0.0-1ubuntu1.1
c 4-m.c 80ms 0.5ms 5.1MB 280ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 83ms 0.5ms 4.0MB 300ms 0ms gcc 13.2.0
c 5-im.c 109ms 28ms 5.2MB 363ms 3ms clang 14.0.0-1ubuntu1.1
c 3-m.c 124ms 0.7ms 7.0MB 447ms 0ms clang 14.0.0-1ubuntu1.1
rust 2-m.rs 127ms 1.1ms 6.1MB 457ms 3ms rustc 1.75.0
c 3-m.c 129ms 1.4ms 4.0MB 480ms 0ms gcc 13.2.0
rust 7.rs 131ms 0.2ms 1.9MB 120ms 0ms rustc 1.75.0
rust 2.rs 262ms 0.2ms 2.0MB 250ms 0ms rustc 1.75.0

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 1350ms 24ms 33.8MB 1323ms 13ms rustc 1.75.0
rust 5.rs 1432ms 16ms 33.8MB 1407ms 7ms rustc 1.75.0
rust 3.rs 1491ms 51ms 49.9MB 1463ms 13ms rustc 1.75.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5.rs 126ms 1.5ms 5.8MB 117ms 0ms rustc 1.75.0
rust 4.rs 129ms 0.4ms 5.8MB 117ms 0ms rustc 1.75.0
rust 3.rs 134ms 3.3ms 7.8MB 123ms 0ms rustc 1.75.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-m.rs 535ms 34ms 11.1MB 1983ms 70ms rustc 1.75.0
rust 5-m.rs 590ms 45ms 7.9MB 2197ms 70ms rustc 1.75.0
rust 1-m.rs 1011ms 8.9ms 12.4MB 3597ms 360ms rustc 1.75.0
rust 3.rs 1111ms 11ms 9.3MB 1060ms 33ms rustc 1.75.0
rust 4.rs 1363ms 6.2ms 7.6MB 1343ms 3ms rustc 1.75.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-m.rs 48ms 3.9ms 8.1MB 147ms 7ms rustc 1.75.0
rust 5-m.rs 51ms 0.9ms 5.4MB 137ms 23ms rustc 1.75.0
rust 3.rs 70ms 3.0ms 4.1MB 60ms 3ms rustc 1.75.0
rust 1-m.rs 82ms 7.0ms 7.7MB 237ms 40ms rustc 1.75.0
rust 4.rs 82ms 1.0ms 3.3MB 70ms 0ms rustc 1.75.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 123ms 2.1ms 3.6MB 113ms 0ms rustc 1.75.0
rust 2.rs 438ms 3.0ms 3.6MB 427ms 0ms rustc 1.75.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 33ms 0.2ms 2.9MB 23ms 0ms rustc 1.75.0
rust 2.rs 82ms 1.0ms 3.1MB 70ms 0ms rustc 1.75.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 399ms 1.4ms 6.0MB 1533ms 3ms rustc 1.75.0
rust 5-m.rs 604ms 7.8ms 6.0MB 2313ms 3ms rustc 1.75.0
rust 2-im.rs 678ms 51ms 6.0MB 2467ms 0ms rustc 1.75.0
rust 3-i.rs 1482ms 11ms 2.0MB 1473ms 0ms rustc 1.75.0
rust 1-m.rs 1577ms 16ms 6.0MB 6093ms 3ms rustc 1.75.0
rust 2-i.rs 1773ms 2.2ms 1.9MB 1760ms 0ms rustc 1.75.0
rust 1.rs 4197ms 17ms 1.8MB 4190ms 0ms rustc 1.75.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 38ms 0.5ms 6.0MB 113ms 0ms rustc 1.75.0
rust 5-m.rs 58ms 1.1ms 6.0MB 187ms 0ms rustc 1.75.0
rust 2-im.rs 65ms 0.7ms 6.0MB 207ms 0ms rustc 1.75.0
rust 3-i.rs 123ms 0.5ms 1.9MB 110ms 0ms rustc 1.75.0
rust 1-m.rs 139ms 2.0ms 6.0MB 497ms 0ms rustc 1.75.0
rust 2-i.rs 150ms 0.4ms 1.8MB 140ms 0ms rustc 1.75.0
rust 1.rs 349ms 2.2ms 1.9MB 337ms 0ms rustc 1.75.0

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2-http2.rs 338ms 70ms 47.5MB 553ms 363ms rustc 1.75.0
rust 1.rs 345ms 58ms 47.2MB 143ms 373ms rustc 1.75.0
rust 1-http2.rs 418ms 40ms 55.6MB 817ms 417ms rustc 1.75.0
rust 2-m.rs 425ms 4.8ms 64.5MB 217ms 840ms rustc 1.75.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 103ms 11ms 16.6MB 23ms 80ms rustc 1.75.0
rust 2-m.rs 142ms 7.8ms 29.0MB 43ms 170ms rustc 1.75.0
rust 1-http2.rs 202ms 46ms 27.5MB 327ms 167ms rustc 1.75.0
rust 2-http2.rs 204ms 16ms 25.3MB 380ms 140ms rustc 1.75.0

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5-i.rs 28ms 1.8ms 9.8MB 20ms 0ms rustc 1.75.0
rust 4-i.rs 30ms 2.1ms 7.9MB 17ms 0ms rustc 1.75.0
rust 3.rs 65ms 2.5ms 36.3MB 43ms 7ms rustc 1.75.0
rust 2.rs 66ms 1.5ms 38.0MB 40ms 10ms rustc 1.75.0
rust 1.rs 111ms 3.2ms 75.3MB 67ms 30ms rustc 1.75.0

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5-i.rs 199ms 2.8ms 53.3MB 170ms 13ms rustc 1.75.0
rust 4-i.rs 239ms 1.5ms 54.5MB 197ms 23ms rustc 1.75.0
rust 3.rs 396ms 1.9ms 257.5MB 280ms 103ms rustc 1.75.0
rust 2.rs 402ms 1.3ms 257.0MB 290ms 97ms rustc 1.75.0
rust 1.rs 747ms 7.7ms 605.1MB 483ms 250ms rustc 1.75.0

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1-m.c 174ms 4.0ms 25.5MB 410ms 7ms gcc 13.2.0
rust 8-m.rs 275ms 21ms 30.3MB 817ms 7ms rustc 1.75.0
c 1-m.c 306ms 28ms 29.7MB 1020ms 30ms clang 14.0.0-1ubuntu1.1
rust 8.rs 508ms 3.8ms 23.8MB 483ms 10ms rustc 1.75.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1-m.c 28ms 1.9ms 13.4MB 63ms 0ms gcc 13.2.0
rust 8-m.rs 36ms 1.1ms 17.8MB 73ms 7ms rustc 1.75.0
c 1-m.c 41ms 4.7ms 16.8MB 107ms 7ms clang 14.0.0-1ubuntu1.1
rust 8.rs 66ms 2.6ms 11.4MB 50ms 0ms rustc 1.75.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 36ms 1.0ms 1.9MB 23ms 0ms rustc 1.75.0
rust 1.rs 51ms 1.3ms 2.0MB 40ms 0ms rustc 1.75.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 151ms 1.3ms 1.9MB 143ms 0ms rustc 1.75.0
rust 1.rs 210ms 1.9ms 2.0MB 200ms 0ms rustc 1.75.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 26ms 0.3ms 1.9MB 17ms 0ms rustc 1.75.0
rust 1.rs 34ms 0.5ms 1.9MB 30ms 0ms rustc 1.75.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 707ms 6.9ms 33.8MB 680ms 13ms rustc 1.75.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 159ms 8.2ms 9.8MB 150ms 0ms rustc 1.75.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 283ms 1.3ms 41.1MB 267ms 0ms gcc 13.2.0
c 1.c 287ms 7.5ms 40.8MB 273ms 0ms clang 14.0.0-1ubuntu1.1
c 1.c 295ms 2.4ms 40.3MB 273ms 3ms zigcc 0.12.0-dev.2341+92211135f
rust 1.rs 329ms 1.6ms 41.1MB 313ms 3ms rustc 1.75.0
rust 2.rs 336ms 5.8ms 6.8MB 327ms 0ms rustc 1.75.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 54ms 0.5ms 11.8MB 40ms 0ms gcc 13.2.0
c 1.c 58ms 1.7ms 11.5MB 47ms 0ms clang 14.0.0-1ubuntu1.1
c 1.c 59ms 1.3ms 11.0MB 47ms 0ms zigcc 0.12.0-dev.2341+92211135f
rust 1.rs 65ms 3.6ms 11.6MB 50ms 0ms rustc 1.75.0
rust 2.rs 85ms 1.0ms 3.0MB 70ms 0ms rustc 1.75.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 1528ms 4.6ms 2.8MB 1280ms 230ms rustc 1.75.0
rust 2.rs 1712ms 3.5ms 2.7MB 1630ms 63ms rustc 1.75.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 319ms 1.2ms 2.4MB 300ms 7ms rustc 1.75.0
rust 2.rs 380ms 3.1ms 2.4MB 367ms 0ms rustc 1.75.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 437ms 7.7ms 78.6MB 453ms 17ms rustc 1.75.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 51ms 1.6ms 11.6MB 43ms 7ms rustc 1.75.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0.rs 120ms 1.3ms 1.9MB 110ms 0ms rustc 1.75.0
rust 1.rs 1422ms 3.5ms 1.9MB 1410ms 0ms rustc 1.75.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0.rs 32ms 0.4ms 1.8MB 20ms 0ms rustc 1.75.0
rust 1.rs 376ms 25ms 1.8MB 360ms 0ms rustc 1.75.0