Programming Language and compiler
Benchmarks

Rust VS Chapel benchmarks

Current benchmark data was generated on Fri Aug 01 2025, 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.)

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 1.2ms 0.1ms 1.8MB 0ms 0ms rustc 1.88.0
rust 1.rs 1.2ms 0.1ms 1.9MB 0ms 0ms rustc 1.90.0-nightly
chapel 1.chpl 10ms 0.5ms 28.8MB 0ms 0ms chpl 1.31.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 9.rs 246ms 0.5ms 4.8MB 240ms 0ms rustc 1.90.0-nightly
rust 8.rs 292ms 0.8ms 4.8MB 280ms 0ms rustc 1.88.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 9.rs 13ms 0.4ms 1.9MB 10ms 0ms rustc 1.90.0-nightly
rust 8.rs 14ms 0.1ms 1.9MB 10ms 0ms rustc 1.88.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 163ms 0.3ms 1.8MB 157ms 0ms rustc 1.88.0
rust 7-i.rs 218ms 1.1ms 1.8MB 210ms 0ms rustc 1.88.0
rust 1.rs 229ms 0.6ms 1.8MB 220ms 0ms rustc 1.88.0
rust 3.rs 279ms 0.5ms 1.9MB 270ms 0ms rustc 1.90.0-nightly
rust 2.rs 279ms 0.3ms 1.6MB 270ms 0ms rustc 1.88.0
chapel 2.chpl 324ms 1.7ms 28.8MB 320ms 0ms chpl 1.31.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 18ms 0.1ms 1.8MB 10ms 0ms rustc 1.88.0
rust 7-i.rs 24ms 0.5ms 1.8MB 20ms 0ms rustc 1.88.0
rust 1.rs 25ms 0.5ms 1.8MB 20ms 0ms rustc 1.88.0
rust 3.rs 30ms 0.1ms 1.9MB 20ms 0ms rustc 1.90.0-nightly
rust 2.rs 30ms 0.1ms 1.6MB 20ms 0ms rustc 1.88.0
chapel 2.chpl 43ms 1.3ms 28.8MB 40ms 0ms chpl 1.31.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 492ms 0.6ms 2.3MB 1907ms 3ms rustc 1.88.0
rust 8-m.rs 493ms 0.0ms 2.4MB 1917ms 0ms rustc 1.90.0-nightly
rust 8.rs 994ms 2.5ms 2.4MB 983ms 0ms rustc 1.90.0-nightly
chapel 1-m.chpl 1914ms 2.2ms 29.0MB 3800ms 0ms chpl 1.31.0
rust 7.rs 1964ms 9.9ms 2.0MB 1957ms 0ms rustc 1.88.0
rust 2-m.rs 2079ms 5.2ms 2.4MB 8167ms 3ms rustc 1.88.0
chapel 1.chpl 3718ms 16ms 28.8MB 3713ms 0ms chpl 1.31.0
rust 2.rs 4264ms 2.5ms 2.0MB 4253ms 0ms rustc 1.88.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 127ms 0.2ms 2.1MB 463ms 0ms rustc 1.88.0
rust 8-m.rs 127ms 0.4ms 2.3MB 470ms 0ms rustc 1.90.0-nightly
rust 8.rs 251ms 0.9ms 2.0MB 240ms 0ms rustc 1.90.0-nightly
chapel 1-m.chpl 491ms 2.1ms 29.0MB 953ms 0ms chpl 1.31.0
rust 7.rs 496ms 4.5ms 1.8MB 490ms 0ms rustc 1.88.0
rust 2-m.rs 523ms 1.6ms 2.3MB 2023ms 0ms rustc 1.88.0
chapel 1.chpl 945ms 5.5ms 28.6MB 940ms 0ms chpl 1.31.0
rust 2.rs 1068ms 0.2ms 2.0MB 1060ms 0ms rustc 1.88.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 35ms 0.2ms 2.1MB 110ms 0ms rustc 1.90.0-nightly
rust 7-m.rs 35ms 0.4ms 2.1MB 110ms 0ms rustc 1.88.0
rust 8.rs 65ms 0.5ms 2.0MB 60ms 0ms rustc 1.90.0-nightly
rust 7.rs 130ms 7.3ms 1.8MB 123ms 0ms rustc 1.88.0
chapel 1-m.chpl 132ms 0.5ms 28.9MB 240ms 0ms chpl 1.31.0
rust 2-m.rs 135ms 0.3ms 2.1MB 493ms 3ms rustc 1.88.0
chapel 1.chpl 246ms 3.8ms 28.8MB 243ms 0ms chpl 1.31.0
rust 2.rs 269ms 0.8ms 1.9MB 260ms 0ms rustc 1.88.0

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 1259ms 3.4ms 33.8MB 1240ms 7ms rustc 1.88.0
rust 5.rs 1337ms 1.1ms 33.8MB 1317ms 10ms rustc 1.88.0
rust 3.rs 1443ms 32ms 49.8MB 1410ms 13ms rustc 1.88.0
chapel 4.chpl 1943ms 3.5ms 62.3MB 1937ms 0ms chpl 1.31.0
chapel 3.chpl 2057ms 34ms 62.4MB 2050ms 0ms chpl 1.31.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 121ms 2.1ms 5.8MB 110ms 0ms rustc 1.88.0
rust 5.rs 126ms 2.0ms 5.8MB 120ms 0ms rustc 1.88.0
rust 3.rs 138ms 4.5ms 7.8MB 127ms 0ms rustc 1.88.0
chapel 4.chpl 185ms 1.5ms 32.4MB 180ms 0ms chpl 1.31.0
chapel 3.chpl 188ms 2.4ms 32.3MB 187ms 0ms chpl 1.31.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-m.rs 540ms 40ms 8.9MB 2037ms 60ms rustc 1.88.0
rust 5-m.rs 650ms 108ms 5.6MB 2473ms 67ms rustc 1.88.0
rust 1-m.rs 975ms 1.4ms 7.4MB 3630ms 197ms rustc 1.88.0
rust 3.rs 1139ms 4.6ms 9.3MB 1100ms 27ms rustc 1.88.0
rust 4.rs 1934ms 7.8ms 6.9MB 1923ms 0ms rustc 1.88.0
chapel 1-m.chpl 2227ms 82ms 611.9MB 4340ms 77ms chpl 1.31.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5-m.rs 53ms 3.2ms 3.4MB 160ms 13ms rustc 1.88.0
rust 3-m.rs 53ms 1.0ms 4.4MB 160ms 13ms rustc 1.88.0
rust 3.rs 70ms 0.3ms 4.0MB 60ms 0ms rustc 1.88.0
rust 1-m.rs 75ms 0.9ms 3.5MB 243ms 20ms rustc 1.88.0
rust 4.rs 116ms 2.5ms 3.1MB 110ms 0ms rustc 1.88.0
chapel 1-m.chpl 195ms 2.0ms 578.1MB 313ms 50ms chpl 1.31.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 69ms 0.2ms 32.5MB 70ms 0ms chpl 1.31.0
rust 1.rs 121ms 3.5ms 3.6MB 113ms 0ms rustc 1.88.0
rust 2.rs 422ms 3.6ms 3.6MB 413ms 0ms rustc 1.88.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 33ms 0.3ms 30.5MB 30ms 0ms chpl 1.31.0
rust 1.rs 34ms 1.6ms 2.9MB 23ms 0ms rustc 1.88.0
rust 2.rs 77ms 1.4ms 3.0MB 70ms 0ms rustc 1.88.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 413ms 0.7ms 2.1MB 1587ms 0ms rustc 1.88.0
rust 5-m.rs 558ms 2.0ms 2.0MB 2130ms 0ms rustc 1.88.0
rust 2-im.rs 667ms 5.0ms 2.1MB 2540ms 0ms rustc 1.88.0
rust 1-m.rs 955ms 4.2ms 2.1MB 3670ms 0ms rustc 1.88.0
rust 3-i.rs 1497ms 2.0ms 1.8MB 1490ms 0ms rustc 1.88.0
rust 2-i.rs 2365ms 0.5ms 1.8MB 2357ms 0ms rustc 1.88.0
rust 1.rs 2700ms 26ms 1.8MB 2690ms 0ms rustc 1.88.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 38ms 0.1ms 2.0MB 127ms 0ms rustc 1.88.0
rust 5-m.rs 52ms 1.3ms 2.1MB 170ms 0ms rustc 1.88.0
rust 2-im.rs 60ms 1.6ms 2.0MB 200ms 0ms rustc 1.88.0
rust 1-m.rs 84ms 0.3ms 2.0MB 290ms 0ms rustc 1.88.0
rust 3-i.rs 125ms 0.6ms 1.9MB 120ms 0ms rustc 1.88.0
rust 2-i.rs 195ms 0.4ms 1.8MB 183ms 0ms rustc 1.88.0
rust 1.rs 224ms 3.0ms 1.8MB 217ms 0ms rustc 1.88.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 6.rs 88ms 2.0ms 1.9MB 80ms 0ms rustc 1.88.0
rust 5c-m.rs 89ms 0.8ms 3.2MB 250ms 0ms rustc 1.88.0
rust 5-m.rs 92ms 1.4ms 3.2MB 287ms 0ms rustc 1.88.0
chapel 5-m.chpl 106ms 1.0ms 28.4MB 190ms 0ms chpl 1.31.0
rust 1c.rs 164ms 0.4ms 1.9MB 157ms 0ms rustc 1.88.0
rust 1.rs 197ms 1.0ms 1.9MB 190ms 0ms rustc 1.88.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 6.rs 11ms 1.0ms 1.9MB 10ms 0ms rustc 1.88.0
rust 5c-m.rs 15ms 0.3ms 3.4MB 23ms 0ms rustc 1.88.0
rust 5-m.rs 16ms 0.7ms 3.4MB 27ms 0ms rustc 1.88.0
rust 1c.rs 19ms 0.5ms 1.9MB 10ms 0ms rustc 1.88.0
chapel 5.chpl 20ms 1.0ms 28.4MB 20ms 0ms chpl 1.31.0
rust 1.rs 22ms 0.4ms 1.9MB 10ms 0ms rustc 1.88.0

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1-m.rs 219ms 191ms 80.3MB 1827ms 2833ms rustc 1.88.0
rust 2-http2.rs 284ms 64ms 50.0MB 633ms 310ms rustc 1.88.0
rust 2-m.rs 349ms 10ms 78.0MB 240ms 837ms rustc 1.88.0
rust 1-http2.rs 394ms 30ms 60.1MB 793ms 547ms rustc 1.88.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1-m.rs 44ms 5.0ms 19.0MB 20ms 67ms rustc 1.88.0
rust 2-m.rs 82ms 6.1ms 22.8MB 37ms 160ms rustc 1.88.0
rust 1-http2.rs 220ms 96ms 24.1MB 590ms 173ms rustc 1.88.0
rust 2-http2.rs 223ms 41ms 25.9MB 600ms 173ms rustc 1.88.0

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5-i.rs 29ms 1.5ms 9.8MB 20ms 0ms rustc 1.88.0
rust 4-i.rs 33ms 0.8ms 7.9MB 20ms 0ms rustc 1.88.0
rust 3.rs 60ms 1.1ms 32.0MB 40ms 10ms rustc 1.88.0
rust 2.rs 61ms 1.6ms 33.8MB 40ms 7ms rustc 1.88.0
rust 1.rs 101ms 3.0ms 67.4MB 60ms 23ms rustc 1.88.0

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5-i.rs 216ms 2.9ms 53.0MB 190ms 10ms rustc 1.88.0
rust 4-i.rs 262ms 5.4ms 54.5MB 210ms 37ms rustc 1.88.0
rust 2.rs 392ms 6.9ms 238.0MB 290ms 87ms rustc 1.88.0
rust 3.rs 403ms 5.1ms 237.8MB 307ms 80ms rustc 1.88.0
rust 1.rs 679ms 0.6ms 551.8MB 443ms 227ms rustc 1.88.0

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 219ms 11ms 28.1MB 633ms 10ms rustc 1.88.0
rust 8.rs 411ms 1.3ms 23.8MB 390ms 3ms rustc 1.88.0
chapel 3-m.chpl 746ms 4.8ms 99.0MB 1410ms 7ms chpl 1.31.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 29ms 2.8ms 15.9MB 60ms 10ms rustc 1.88.0
rust 8.rs 55ms 2.1ms 11.4MB 40ms 0ms rustc 1.88.0
chapel 3-m.chpl 114ms 2.1ms 87.0MB 200ms 3ms chpl 1.31.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 37ms 4.5ms 1.9MB 27ms 0ms rustc 1.88.0
rust 1.rs 51ms 3.1ms 2.0MB 43ms 0ms rustc 1.88.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 133ms 9.5ms 1.8MB 123ms 0ms rustc 1.88.0
rust 1.rs 203ms 10ms 1.9MB 193ms 0ms rustc 1.88.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 24ms 0.7ms 1.8MB 17ms 0ms rustc 1.88.0
rust 1.rs 31ms 1.7ms 1.9MB 20ms 0ms rustc 1.88.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 709ms 8.0ms 33.8MB 690ms 10ms rustc 1.88.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 160ms 6.9ms 9.9MB 150ms 0ms rustc 1.88.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2.rs 301ms 2.9ms 6.6MB 290ms 0ms rustc 1.88.0
rust 1.rs 305ms 4.3ms 40.9MB 287ms 3ms rustc 1.88.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 64ms 1.9ms 11.6MB 57ms 0ms rustc 1.88.0
rust 2.rs 77ms 1.1ms 2.9MB 70ms 0ms rustc 1.88.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 444ms 0.8ms 28.3MB 440ms 0ms chpl 1.31.0
rust 1.rs 1525ms 5.8ms 2.7MB 1310ms 200ms rustc 1.88.0
rust 2.rs 1707ms 7.2ms 2.7MB 1613ms 77ms rustc 1.88.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 114ms 0.4ms 30.4MB 110ms 0ms chpl 1.31.0
rust 1.rs 321ms 2.3ms 2.4MB 300ms 10ms rustc 1.88.0
rust 2.rs 381ms 2.0ms 2.4MB 370ms 0ms rustc 1.88.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 438ms 2.7ms 78.6MB 450ms 13ms rustc 1.88.0
chapel 3.chpl 1388ms 7.1ms 246.1MB 1340ms 43ms chpl 1.31.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 49ms 0.5ms 11.6MB 40ms 0ms rustc 1.88.0
chapel 3.chpl 159ms 2.9ms 48.9MB 140ms 10ms chpl 1.31.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0.rs 119ms 3.0ms 1.9MB 110ms 0ms rustc 1.88.0
chapel 1.chpl 1203ms 44ms 29.1MB 1197ms 0ms chpl 1.31.0
rust 1.rs 1429ms 26ms 1.9MB 1420ms 0ms rustc 1.88.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0.rs 32ms 0.6ms 1.8MB 20ms 0ms rustc 1.88.0
chapel 1.chpl 308ms 3.0ms 29.1MB 303ms 0ms chpl 1.31.0
rust 1.rs 359ms 4.6ms 1.9MB 350ms 0ms rustc 1.88.0