Rust VS C benchmarks

Current benchmark data was generated on Wed May 25 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
rust 5-m.rs 166ms 1.3ms 2.3MB 287ms 0ms rustc 1.61.0
rust 5c-m.rs 175ms 6.6ms 1.2MB 297ms 0ms rustc 1.63.0
rust 1c.rs 191ms 3.2ms 0.7MB 180ms 0ms rustc 1.63.0
rust 1.rs 234ms 0.2ms 0.6MB 223ms 0ms rustc 1.61.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1c.rs 24ms 1.7ms 0.6MB 13ms 0ms rustc 1.63.0
rust 5c-m.rs 26ms 1.8ms 1.3MB 27ms 0ms rustc 1.63.0
rust 5-m.rs 27ms 2.0ms 1.3MB 27ms 0ms rustc 1.61.0
rust 1.rs 27ms 1.1ms 1.9MB 20ms 0ms rustc 1.61.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 1.8ms 0.7ms 0.9MB 0ms 0ms gcc 12.1.0
c 1.c 2.2ms 0.7ms 1.1MB 0ms 0ms clang 11.0.0
rust 1.rs 2.2ms 0.6ms 2.0MB 0ms 0ms rustc 1.63.0
rust 1.rs 2.4ms 0.5ms 0.6MB 0ms 0ms rustc 1.61.0
c 1.c 2.9ms 1.6ms 0.6MB 0ms 0ms zigcc 0.10.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 9.rs 362ms 2.1ms 4.9MB 350ms 0ms rustc 1.63.0
rust 8.rs 455ms 0.4ms 4.9MB 443ms 0ms rustc 1.61.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 9.rs 18ms 0.4ms 0.6MB 10ms 0ms rustc 1.63.0
rust 8.rs 22ms 0.8ms 0.6MB 10ms 0ms rustc 1.61.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 188ms 0.3ms 0.6MB 180ms 0ms rustc 1.61.0
rust 7-i.rs 276ms 22ms 0.6MB 263ms 0ms rustc 1.61.0
rust 3.rs 301ms 0.1ms 0.6MB 290ms 0ms rustc 1.63.0
c 8-i.c 318ms 4.5ms 1.1MB 300ms 0ms clang 11.0.0
c 8-i.c 320ms 17ms 1.0MB 310ms 0ms gcc 12.1.0
c 5.c 334ms 0.4ms 1.0MB 320ms 0ms gcc 12.1.0
rust 2.rs 337ms 0.4ms 0.6MB 330ms 0ms rustc 1.61.0
c 8-i.c 339ms 0.3ms 0.6MB 330ms 0ms zigcc 0.10.0
c 5.c 361ms 4.0ms 1.1MB 350ms 0ms clang 11.0.0
rust 1.rs 408ms 10ms 0.6MB 400ms 0ms rustc 1.61.0
c 5.c 426ms 0.4ms 0.6MB 413ms 0ms zigcc 0.10.0
c 2.c 431ms 3.8ms 0.6MB 420ms 0ms zigcc 0.10.0
c 2.c 458ms 12ms 1.1MB 437ms 0ms clang 11.0.0
c 2.c 478ms 5.8ms 1.0MB 467ms 0ms gcc 12.1.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 23ms 0.4ms 0.6MB 10ms 0ms rustc 1.61.0
rust 7-i.rs 27ms 0.1ms 0.6MB 20ms 0ms rustc 1.61.0
rust 3.rs 32ms 1.3ms 0.6MB 20ms 0ms rustc 1.63.0
c 8-i.c 36ms 0.4ms 0.6MB 30ms 0ms zigcc 0.10.0
rust 2.rs 36ms 2.0ms 0.6MB 30ms 0ms rustc 1.61.0
c 8-i.c 36ms 0.3ms 0.9MB 23ms 0ms gcc 12.1.0
c 8-i.c 37ms 2.3ms 1.1MB 23ms 0ms clang 11.0.0
c 5.c 37ms 2.9ms 1.1MB 30ms 0ms clang 11.0.0
c 5.c 37ms 2.0ms 1.0MB 23ms 0ms gcc 12.1.0
rust 1.rs 41ms 2.7ms 2.1MB 30ms 0ms rustc 1.61.0
c 5.c 45ms 0.2ms 0.6MB 37ms 0ms zigcc 0.10.0
c 2.c 45ms 0.1ms 0.6MB 33ms 0ms zigcc 0.10.0
c 2.c 47ms 3.4ms 1.1MB 37ms 0ms clang 11.0.0
c 2.c 50ms 0.4ms 1.0MB 40ms 0ms gcc 12.1.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 872ms 1.5ms 2.6MB 1613ms 3ms rustc 1.63.0
rust 7-m.rs 893ms 2.6ms 2.2MB 1717ms 0ms rustc 1.61.0
c 4-m.c 1271ms 6.7ms 1.0MB 2483ms 0ms gcc 12.1.0
c 6-im.c 1437ms 4.1ms 3.1MB 2810ms 3ms clang 11.0.0
c 6-im.c 1518ms 1.7ms 0.9MB 2970ms 0ms gcc 12.1.0
rust 8.rs 1518ms 1.1ms 2.5MB 1510ms 0ms rustc 1.63.0
c 4-m.c 1537ms 7.1ms 3.0MB 3007ms 3ms clang 11.0.0
c 5-im.c 1582ms 3.4ms 1.0MB 3097ms 0ms gcc 12.1.0
rust 2-m.rs 1706ms 54ms 2.1MB 3290ms 7ms rustc 1.61.0
rust 7.rs 1722ms 3.0ms 2.2MB 1710ms 0ms rustc 1.61.0
c 5-im.c 1742ms 4.8ms 3.1MB 3407ms 0ms clang 11.0.0
c 3-m.c 1874ms 2.0ms 0.9MB 3670ms 3ms gcc 12.1.0
c 3-m.c 1889ms 6.2ms 3.0MB 3700ms 0ms clang 11.0.0
rust 2.rs timeout 0.0ms 0.0MB 0ms 0ms rustc 1.61.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 220ms 6.5ms 2.4MB 397ms 0ms rustc 1.63.0
rust 7-m.rs 233ms 1.5ms 0.7MB 423ms 0ms rustc 1.61.0
c 4-m.c 329ms 6.5ms 2.4MB 620ms 0ms gcc 12.1.0
c 6-im.c 372ms 3.6ms 3.1MB 703ms 0ms clang 11.0.0
c 4-m.c 395ms 2.9ms 2.9MB 757ms 0ms clang 11.0.0
c 6-im.c 401ms 15ms 0.9MB 747ms 0ms gcc 12.1.0
c 5-im.c 411ms 1.9ms 1.0MB 787ms 0ms gcc 12.1.0
rust 7.rs 416ms 29ms 0.6MB 403ms 0ms rustc 1.61.0
rust 8.rs 432ms 0.5ms 2.2MB 420ms 0ms rustc 1.63.0
rust 2-m.rs 435ms 7.8ms 2.3MB 820ms 0ms rustc 1.61.0
c 5-im.c 453ms 15ms 3.1MB 857ms 0ms clang 11.0.0
c 3-m.c 484ms 2.2ms 1.0MB 920ms 0ms gcc 12.1.0
c 3-m.c 488ms 12ms 3.1MB 927ms 0ms clang 11.0.0
rust 2.rs 1371ms 0.7ms 0.6MB 1360ms 0ms rustc 1.61.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 60ms 1.7ms 2.3MB 100ms 0ms rustc 1.63.0
rust 7-m.rs 64ms 0.6ms 0.7MB 100ms 0ms rustc 1.61.0
c 4-m.c 90ms 0.5ms 1.0MB 160ms 0ms gcc 12.1.0
c 6-im.c 101ms 1.2ms 2.9MB 180ms 0ms clang 11.0.0
rust 7.rs 103ms 7.6ms 0.6MB 93ms 0ms rustc 1.61.0
c 6-im.c 105ms 0.8ms 1.0MB 190ms 0ms gcc 12.1.0
c 4-m.c 107ms 0.4ms 3.0MB 190ms 0ms clang 11.0.0
rust 8.rs 107ms 6.1ms 2.2MB 97ms 0ms rustc 1.63.0
c 5-im.c 111ms 0.5ms 1.0MB 200ms 0ms gcc 12.1.0
rust 2-m.rs 115ms 3.3ms 0.7MB 200ms 0ms rustc 1.61.0
c 5-im.c 128ms 9.1ms 2.9MB 220ms 0ms clang 11.0.0
c 3-m.c 130ms 1.0ms 0.9MB 233ms 0ms gcc 12.1.0
c 3-m.c 132ms 4.3ms 3.1MB 230ms 0ms clang 11.0.0
rust 2.rs 391ms 0.6ms 0.6MB 380ms 0ms rustc 1.61.0

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 1628ms 114ms 33.8MB 1600ms 10ms rustc 1.61.0
rust 5.rs 1902ms 27ms 33.9MB 1867ms 17ms rustc 1.61.0
rust 3.rs 1939ms 119ms 49.8MB 1910ms 13ms rustc 1.61.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 138ms 1.4ms 5.7MB 120ms 0ms rustc 1.61.0
rust 3.rs 166ms 0.5ms 7.7MB 153ms 0ms rustc 1.61.0
rust 5.rs 168ms 1.0ms 5.7MB 160ms 0ms rustc 1.61.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-m.rs 915ms 27ms 6.3MB 1760ms 17ms rustc 1.61.0
rust 5-m.rs 1033ms 130ms 5.7MB 1983ms 30ms rustc 1.61.0
rust 3.rs 1831ms 4.5ms 6.5MB 1777ms 37ms rustc 1.61.0
rust 4.rs 3182ms 1.1ms 4.5MB 3170ms 0ms rustc 1.61.0
rust 1-m.rs 3399ms 14ms 5.8MB 6590ms 83ms rustc 1.61.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-m.rs 85ms 15ms 3.0MB 137ms 7ms rustc 1.61.0
rust 3.rs 113ms 0.3ms 3.1MB 100ms 0ms rustc 1.61.0
rust 5-m.rs 120ms 13ms 3.2MB 200ms 0ms rustc 1.61.0
rust 4.rs 208ms 0.2ms 2.7MB 200ms 0ms rustc 1.61.0
rust 1-m.rs 234ms 2.8ms 2.8MB 427ms 7ms rustc 1.61.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 129ms 10ms 3.6MB 117ms 0ms rustc 1.61.0
rust 2.rs 538ms 2.3ms 3.6MB 527ms 0ms rustc 1.61.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 38ms 0.8ms 2.9MB 30ms 0ms rustc 1.61.0
rust 2.rs 89ms 1.0ms 3.3MB 77ms 0ms rustc 1.61.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 614ms 0.3ms 0.7MB 1183ms 0ms rustc 1.61.0
rust 2-im.rs 952ms 10.0ms 0.7MB 1840ms 0ms rustc 1.61.0
rust 5-m.rs 1115ms 2.2ms 0.7MB 2110ms 0ms rustc 1.61.0
rust 3-i.rs 1206ms 0.8ms 0.6MB 1200ms 0ms rustc 1.61.0
rust 2-i.rs 1674ms 0.6ms 0.6MB 1657ms 0ms rustc 1.61.0
rust 1-m.rs 2129ms 3.7ms 0.7MB 4100ms 3ms rustc 1.61.0
rust 1.rs 3896ms 25ms 0.6MB 3880ms 0ms rustc 1.61.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 63ms 1.8ms 0.7MB 100ms 0ms rustc 1.61.0
rust 2-im.rs 90ms 1.7ms 2.0MB 150ms 0ms rustc 1.61.0
rust 5-m.rs 99ms 3.9ms 0.6MB 170ms 0ms rustc 1.61.0
rust 3-i.rs 103ms 1.3ms 0.6MB 90ms 0ms rustc 1.61.0
rust 2-i.rs 143ms 1.4ms 0.6MB 130ms 0ms rustc 1.61.0
rust 1-m.rs 192ms 0.8ms 0.7MB 337ms 0ms rustc 1.61.0
rust 1.rs 312ms 22ms 0.6MB 300ms 0ms rustc 1.61.0

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 216ms 54ms 47.0MB 120ms 130ms rustc 1.61.0
rust 2-m.rs 557ms 7.6ms 114.0MB 317ms 557ms rustc 1.61.0
rust 1-http2.rs 814ms 173ms 81.0MB 937ms 413ms rustc 1.61.0
rust 2-http2.rs timeout 0.0ms 0.0MB 0ms 0ms rustc 1.61.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 75ms 19ms 15.7MB 27ms 23ms rustc 1.61.0
rust 2.rs 135ms 13ms 29.9MB 33ms 103ms rustc 1.61.0
rust 2-http2.rs 292ms 30ms 28.7MB 400ms 87ms rustc 1.61.0
rust 1-http2.rs 365ms 5.4ms 28.5MB 520ms 103ms rustc 1.61.0

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3.rs 82ms 0.4ms 36.4MB 57ms 10ms rustc 1.61.0
rust 2.rs 88ms 4.3ms 38.1MB 60ms 13ms rustc 1.61.0
rust 1.rs 145ms 8.0ms 75.5MB 97ms 33ms rustc 1.61.0

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3.rs 491ms 0.6ms 258.3MB 383ms 90ms rustc 1.61.0
rust 2.rs 492ms 1.3ms 258.4MB 370ms 103ms rustc 1.61.0
rust 1.rs 918ms 44ms 605.1MB 637ms 260ms rustc 1.61.0

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1-m.c 239ms 9.2ms 23.5MB 397ms 7ms gcc 12.1.0
rust 8-m.rs 360ms 6.6ms 28.2MB 633ms 10ms rustc 1.61.0
c 1-m.c 534ms 27ms 20.4MB 853ms 13ms clang 11.0.0
rust 8.rs 637ms 8.6ms 23.9MB 610ms 13ms rustc 1.61.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 34ms 0.3ms 12.8MB 40ms 3ms gcc 12.1.0
rust 8-m.rs 50ms 3.4ms 16.1MB 63ms 7ms rustc 1.61.0
c 1-m.c 64ms 1.5ms 9.6MB 100ms 0ms clang 11.0.0
rust 8.rs 75ms 3.8ms 11.6MB 53ms 10ms rustc 1.61.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 59ms 7.6ms 0.6MB 47ms 0ms rustc 1.61.0
rust 1.rs 77ms 12ms 2.1MB 70ms 0ms rustc 1.61.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 204ms 28ms 0.6MB 193ms 0ms rustc 1.61.0
rust 1.rs 285ms 29ms 2.2MB 277ms 0ms rustc 1.61.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 32ms 0.5ms 0.6MB 20ms 0ms rustc 1.61.0
rust 1.rs 40ms 0.9ms 0.7MB 30ms 0ms rustc 1.61.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 817ms 1.1ms 33.8MB 787ms 10ms rustc 1.61.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 167ms 1.9ms 9.9MB 153ms 0ms rustc 1.61.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2.rs 460ms 2.0ms 6.6MB 440ms 0ms rustc 1.61.0
c 1.c 1127ms 26ms 41.1MB 1097ms 13ms gcc 12.1.0
c 1.c 1128ms 19ms 40.2MB 1097ms 13ms zigcc 0.10.0
rust 1.rs 1182ms 8.4ms 40.9MB 1157ms 7ms rustc 1.61.0
c 1.c 1187ms 31ms 40.9MB 1150ms 20ms clang 11.0.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2.rs 105ms 1.2ms 3.2MB 90ms 0ms rustc 1.61.0
c 1.c 117ms 1.8ms 11.6MB 103ms 0ms clang 11.0.0
c 1.c 117ms 5.1ms 11.8MB 100ms 0ms gcc 12.1.0
c 1.c 117ms 3.6ms 10.9MB 100ms 0ms zigcc 0.10.0
rust 1.rs 127ms 0.8ms 11.7MB 110ms 0ms rustc 1.61.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 1740ms 1.0ms 2.9MB 1573ms 147ms rustc 1.61.0
rust 2.rs 1804ms 7.3ms 2.7MB 1733ms 60ms rustc 1.61.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 375ms 1.1ms 2.7MB 353ms 7ms rustc 1.61.0
rust 2.rs 408ms 1.2ms 2.5MB 400ms 0ms rustc 1.61.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 534ms 33ms 77.5MB 703ms 20ms rustc 1.61.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 58ms 0.7ms 11.8MB 63ms 0ms rustc 1.61.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0.rs 126ms 8.2ms 0.7MB 117ms 0ms rustc 1.61.0
rust 1.rs 1769ms 116ms 0.7MB 1757ms 0ms rustc 1.61.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0.rs 36ms 0.6ms 0.7MB 27ms 0ms rustc 1.61.0
rust 1.rs 462ms 0.7ms 0.6MB 450ms 0ms rustc 1.61.0