Programming Language and compiler
Benchmarks

Rust VS Chapel benchmarks

Current benchmark data was generated on Tue Jul 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 0.0ms 1.9MB 0ms 0ms rustc 1.90.0-nightly
chapel 1.chpl 11ms 0.4ms 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 0.4ms 4.8MB 240ms 0ms rustc 1.90.0-nightly
rust 8.rs 293ms 0.9ms 4.8MB 283ms 0ms rustc 1.88.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 9.rs 12ms 0.1ms 1.9MB 0ms 0ms rustc 1.90.0-nightly
rust 8.rs 15ms 0.3ms 2.0MB 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 164ms 0.2ms 1.8MB 160ms 0ms rustc 1.88.0
rust 7-i.rs 219ms 1.1ms 1.8MB 210ms 0ms rustc 1.88.0
rust 1.rs 229ms 0.5ms 1.8MB 220ms 0ms rustc 1.88.0
rust 3.rs 279ms 0.7ms 1.9MB 270ms 0ms rustc 1.90.0-nightly
rust 2.rs 279ms 0.5ms 1.6MB 270ms 0ms rustc 1.88.0
chapel 2.chpl 320ms 1.9ms 28.8MB 317ms 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 0.4ms 1.8MB 20ms 0ms rustc 1.88.0
rust 2.rs 30ms 0.2ms 1.8MB 20ms 0ms rustc 1.88.0
rust 3.rs 30ms 0.1ms 1.8MB 20ms 0ms rustc 1.90.0-nightly
chapel 2.chpl 48ms 4.7ms 28.8MB 43ms 0ms chpl 1.31.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 493ms 0.8ms 2.5MB 1907ms 3ms rustc 1.90.0-nightly
rust 7-m.rs 493ms 0.4ms 2.1MB 1910ms 0ms rustc 1.88.0
rust 8.rs 994ms 2.7ms 2.4MB 983ms 0ms rustc 1.90.0-nightly
rust 7.rs 1927ms 5.1ms 1.9MB 1917ms 0ms rustc 1.88.0
chapel 1-m.chpl 1930ms 12ms 28.9MB 3833ms 0ms chpl 1.31.0
rust 2-m.rs 2073ms 4.7ms 2.4MB 8130ms 10ms rustc 1.88.0
chapel 1.chpl 3728ms 14ms 28.8MB 3723ms 0ms chpl 1.31.0
rust 2.rs 4274ms 5.2ms 2.0MB 4267ms 0ms rustc 1.88.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 127ms 0.4ms 2.3MB 467ms 3ms rustc 1.90.0-nightly
rust 7-m.rs 128ms 0.8ms 2.3MB 467ms 0ms rustc 1.88.0
rust 8.rs 251ms 0.7ms 2.1MB 240ms 0ms rustc 1.90.0-nightly
rust 7.rs 491ms 1.9ms 1.8MB 480ms 0ms rustc 1.88.0
chapel 1-m.chpl 495ms 2.2ms 28.9MB 960ms 0ms chpl 1.31.0
rust 2-m.rs 521ms 0.5ms 2.1MB 2023ms 3ms rustc 1.88.0
chapel 1.chpl 941ms 4.2ms 28.8MB 937ms 0ms chpl 1.31.0
rust 2.rs 1070ms 2.2ms 1.9MB 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 36ms 0.4ms 2.1MB 110ms 3ms rustc 1.90.0-nightly
rust 7-m.rs 36ms 0.4ms 2.0MB 110ms 0ms rustc 1.88.0
rust 8.rs 65ms 0.9ms 2.0MB 60ms 0ms rustc 1.90.0-nightly
rust 7.rs 125ms 1.8ms 1.8MB 120ms 0ms rustc 1.88.0
chapel 1-m.chpl 134ms 0.7ms 29.0MB 240ms 0ms chpl 1.31.0
rust 2-m.rs 134ms 0.5ms 2.1MB 497ms 0ms rustc 1.88.0
chapel 1.chpl 247ms 0.8ms 28.8MB 240ms 0ms chpl 1.31.0
rust 2.rs 270ms 1.5ms 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 1316ms 18ms 33.6MB 1293ms 10ms rustc 1.88.0
rust 5.rs 1480ms 41ms 33.8MB 1457ms 7ms rustc 1.88.0
rust 3.rs 1534ms 41ms 49.8MB 1507ms 17ms rustc 1.88.0
chapel 4.chpl 1970ms 8.4ms 62.3MB 1960ms 3ms chpl 1.31.0
chapel 3.chpl 2062ms 35ms 62.3MB 2057ms 0ms chpl 1.31.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 123ms 1.4ms 5.6MB 110ms 0ms rustc 1.88.0
rust 5.rs 126ms 1.2ms 5.8MB 117ms 0ms rustc 1.88.0
rust 3.rs 135ms 4.9ms 7.8MB 123ms 0ms rustc 1.88.0
chapel 3.chpl 188ms 2.0ms 32.3MB 180ms 0ms chpl 1.31.0
chapel 4.chpl 196ms 20ms 32.3MB 190ms 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 527ms 34ms 9.1MB 1957ms 63ms rustc 1.88.0
rust 5-m.rs 700ms 11ms 5.5MB 2660ms 70ms rustc 1.88.0
rust 1-m.rs 942ms 2.5ms 7.1MB 3490ms 197ms rustc 1.88.0
rust 3.rs 1155ms 7.3ms 9.3MB 1120ms 20ms rustc 1.88.0
rust 4.rs 1957ms 2.4ms 6.9MB 1940ms 0ms rustc 1.88.0
chapel 1-m.chpl 2288ms 97ms 769.4MB 4450ms 97ms chpl 1.31.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5-m.rs 54ms 2.3ms 3.1MB 160ms 10ms rustc 1.88.0
rust 3-m.rs 58ms 4.8ms 4.1MB 180ms 10ms rustc 1.88.0
rust 1-m.rs 72ms 0.4ms 3.5MB 233ms 20ms rustc 1.88.0
rust 3.rs 74ms 3.7ms 4.0MB 63ms 0ms rustc 1.88.0
rust 4.rs 119ms 2.9ms 3.1MB 110ms 0ms rustc 1.88.0
chapel 1-m.chpl 211ms 14ms 725.6MB 333ms 60ms chpl 1.31.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 72ms 0.4ms 32.5MB 70ms 0ms chpl 1.31.0
rust 1.rs 121ms 1.6ms 3.6MB 110ms 0ms rustc 1.88.0
rust 2.rs 425ms 1.3ms 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 34ms 0.6ms 30.5MB 30ms 0ms chpl 1.31.0
rust 1.rs 34ms 1.4ms 2.9MB 30ms 0ms rustc 1.88.0
rust 2.rs 78ms 1.8ms 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 411ms 5.2ms 2.0MB 1570ms 0ms rustc 1.88.0
rust 5-m.rs 551ms 4.1ms 2.0MB 2133ms 0ms rustc 1.88.0
rust 2-im.rs 672ms 14ms 2.1MB 2573ms 0ms rustc 1.88.0
rust 1-m.rs 940ms 12ms 2.0MB 3637ms 0ms rustc 1.88.0
rust 3-i.rs 1508ms 1.0ms 1.9MB 1500ms 0ms rustc 1.88.0
rust 2-i.rs 2416ms 18ms 1.8MB 2407ms 0ms rustc 1.88.0
rust 1.rs 2785ms 14ms 1.8MB 2773ms 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 120ms 0ms rustc 1.88.0
rust 5-m.rs 53ms 0.8ms 2.1MB 170ms 0ms rustc 1.88.0
rust 2-im.rs 62ms 0.1ms 2.0MB 203ms 0ms rustc 1.88.0
rust 1-m.rs 84ms 1.5ms 2.1MB 290ms 0ms rustc 1.88.0
rust 3-i.rs 126ms 0.3ms 1.9MB 120ms 0ms rustc 1.88.0
rust 2-i.rs 198ms 0.3ms 1.8MB 190ms 0ms rustc 1.88.0
rust 1.rs 229ms 3.3ms 1.8MB 223ms 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 1.4ms 1.9MB 80ms 0ms rustc 1.88.0
rust 5c-m.rs 90ms 0.0ms 3.4MB 260ms 0ms rustc 1.88.0
rust 5-m.rs 93ms 0.3ms 3.2MB 287ms 0ms rustc 1.88.0
chapel 5-m.chpl 108ms 3.0ms 28.4MB 193ms 0ms chpl 1.31.0
rust 1c.rs 163ms 1.1ms 1.9MB 153ms 0ms rustc 1.88.0
rust 1.rs 196ms 1.1ms 1.9MB 187ms 0ms rustc 1.88.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 6.rs 12ms 1.3ms 1.9MB 10ms 0ms rustc 1.88.0
rust 5-m.rs 16ms 0.4ms 3.2MB 27ms 0ms rustc 1.88.0
rust 5c-m.rs 17ms 0.2ms 3.2MB 23ms 0ms rustc 1.88.0
rust 1c.rs 18ms 0.2ms 1.9MB 10ms 0ms rustc 1.88.0
chapel 5.chpl 21ms 1.4ms 28.4MB 20ms 0ms chpl 1.31.0
rust 1.rs 22ms 0.1ms 1.9MB 13ms 0ms rustc 1.88.0

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2-http2.rs 251ms 18ms 47.9MB 490ms 320ms rustc 1.88.0
rust 1-m.rs 292ms 11ms 80.0MB 183ms 480ms rustc 1.88.0
rust 2-m.rs 367ms 69ms 70.6MB 230ms 817ms rustc 1.88.0
rust 1-http2.rs 575ms 112ms 62.5MB 1397ms 657ms rustc 1.88.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1-m.rs 45ms 3.8ms 15.1MB 17ms 63ms rustc 1.88.0
rust 2-m.rs 77ms 8.3ms 21.0MB 40ms 160ms rustc 1.88.0
rust 1-http2.rs 166ms 59ms 25.4MB 380ms 173ms rustc 1.88.0
rust 2-http2.rs 187ms 53ms 26.0MB 477ms 163ms 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 1.8ms 9.8MB 20ms 0ms rustc 1.88.0
rust 4-i.rs 31ms 1.0ms 7.9MB 20ms 0ms rustc 1.88.0
rust 2.rs 61ms 2.6ms 33.8MB 37ms 10ms rustc 1.88.0
rust 3.rs 63ms 2.9ms 32.0MB 40ms 10ms rustc 1.88.0
rust 1.rs 100ms 2.6ms 67.4MB 63ms 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 212ms 1.9ms 53.3MB 187ms 13ms rustc 1.88.0
rust 4-i.rs 260ms 2.6ms 54.3MB 207ms 40ms rustc 1.88.0
rust 2.rs 391ms 4.0ms 237.8MB 293ms 83ms rustc 1.88.0
rust 3.rs 406ms 5.9ms 238.1MB 303ms 90ms rustc 1.88.0
rust 1.rs 688ms 2.7ms 551.8MB 443ms 233ms 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 211ms 3.3ms 28.2MB 630ms 10ms rustc 1.88.0
rust 8.rs 428ms 7.2ms 23.8MB 407ms 10ms rustc 1.88.0
chapel 3-m.chpl 789ms 57ms 87.0MB 1463ms 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 30ms 1.4ms 14.2MB 63ms 7ms rustc 1.88.0
rust 8.rs 57ms 2.1ms 11.4MB 40ms 0ms rustc 1.88.0
chapel 3-m.chpl 114ms 0.4ms 76.9MB 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 36ms 6.0ms 1.8MB 27ms 0ms rustc 1.88.0
rust 1.rs 50ms 10ms 1.9MB 40ms 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 145ms 6.3ms 1.8MB 137ms 0ms rustc 1.88.0
rust 1.rs 212ms 32ms 1.9MB 203ms 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 0.4ms 1.8MB 20ms 0ms rustc 1.88.0
rust 1.rs 30ms 0.9ms 1.8MB 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 720ms 21ms 33.8MB 697ms 10ms rustc 1.88.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 154ms 3.2ms 9.8MB 143ms 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 304ms 3.2ms 6.6MB 293ms 0ms rustc 1.88.0
rust 1.rs 327ms 7.2ms 40.9MB 313ms 0ms rustc 1.88.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 59ms 2.3ms 11.6MB 50ms 0ms rustc 1.88.0
rust 2.rs 78ms 1.2ms 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 448ms 1.5ms 30.3MB 443ms 0ms chpl 1.31.0
rust 1.rs 1528ms 7.9ms 2.7MB 1313ms 197ms rustc 1.88.0
rust 2.rs 1722ms 8.2ms 2.7MB 1643ms 67ms rustc 1.88.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 113ms 1.0ms 30.4MB 110ms 0ms chpl 1.31.0
rust 1.rs 321ms 2.4ms 2.4MB 297ms 10ms rustc 1.88.0
rust 2.rs 385ms 5.8ms 2.4MB 373ms 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 454ms 7.3ms 78.4MB 463ms 17ms rustc 1.88.0
chapel 3.chpl 1397ms 5.8ms 246.1MB 1347ms 40ms chpl 1.31.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 64ms 5.1ms 11.6MB 57ms 3ms rustc 1.88.0
chapel 3.chpl 160ms 1.0ms 48.9MB 147ms 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 118ms 3.7ms 1.9MB 110ms 0ms rustc 1.88.0
chapel 1.chpl 1189ms 8.0ms 29.1MB 1180ms 0ms chpl 1.31.0
rust 1.rs 1433ms 14ms 1.9MB 1423ms 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 1.9ms 1.8MB 23ms 0ms rustc 1.88.0
chapel 1.chpl 310ms 1.9ms 29.2MB 303ms 0ms chpl 1.31.0
rust 1.rs 366ms 4.2ms 1.9MB 353ms 0ms rustc 1.88.0