Programming Language and compiler
Benchmarks

Chapel VS Rust benchmarks

Current benchmark data was generated on Sun Jul 13 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.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 1277ms 6.1ms 33.6MB 1253ms 10ms rustc 1.88.0
rust 5.rs 1404ms 46ms 33.8MB 1380ms 7ms rustc 1.88.0
rust 3.rs 1431ms 12ms 49.8MB 1400ms 13ms rustc 1.88.0
chapel 4.chpl 1953ms 3.7ms 62.3MB 1943ms 0ms chpl 1.31.0
chapel 3.chpl 2034ms 7.2ms 62.3MB 2027ms 0ms chpl 1.31.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 122ms 2.6ms 5.6MB 110ms 0ms rustc 1.88.0
rust 5.rs 128ms 3.1ms 5.8MB 120ms 0ms rustc 1.88.0
rust 3.rs 137ms 3.2ms 7.8MB 127ms 0ms rustc 1.88.0
chapel 4.chpl 183ms 1.2ms 32.4MB 180ms 0ms chpl 1.31.0
chapel 3.chpl 184ms 0.6ms 32.3MB 180ms 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 523ms 7.7ms 9.3MB 1967ms 70ms rustc 1.88.0
rust 5-m.rs 659ms 26ms 5.5MB 2517ms 60ms rustc 1.88.0
rust 1-m.rs 963ms 0.9ms 7.4MB 3583ms 203ms rustc 1.88.0
rust 3.rs 1118ms 22ms 9.3MB 1080ms 23ms rustc 1.88.0
rust 4.rs 1905ms 35ms 6.9MB 1890ms 0ms rustc 1.88.0
chapel 1-m.chpl 2252ms 44ms 799.1MB 4370ms 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 1.9ms 3.3MB 160ms 17ms rustc 1.88.0
rust 3-m.rs 58ms 2.6ms 4.3MB 180ms 13ms rustc 1.88.0
rust 1-m.rs 74ms 0.3ms 3.6MB 243ms 20ms rustc 1.88.0
rust 3.rs 75ms 0.3ms 4.0MB 60ms 0ms rustc 1.88.0
rust 4.rs 114ms 1.1ms 3.3MB 107ms 0ms rustc 1.88.0
chapel 1-m.chpl 220ms 8.1ms 759.6MB 343ms 67ms chpl 1.31.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 71ms 3.0ms 32.5MB 70ms 0ms chpl 1.31.0
rust 1.rs 124ms 0.9ms 3.6MB 113ms 0ms rustc 1.88.0
rust 2.rs 421ms 1.5ms 3.6MB 410ms 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 1.6ms 30.5MB 30ms 0ms chpl 1.31.0
rust 1.rs 35ms 1.0ms 2.9MB 30ms 0ms rustc 1.88.0
rust 2.rs 77ms 1.2ms 3.0MB 70ms 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 90ms 1.0ms 1.9MB 80ms 0ms rustc 1.88.0
rust 5c-m.rs 90ms 0.3ms 3.4MB 260ms 0ms rustc 1.88.0
rust 5-m.rs 91ms 0.4ms 3.2MB 273ms 0ms rustc 1.88.0
chapel 5-m.chpl 106ms 1.6ms 28.4MB 190ms 0ms chpl 1.31.0
rust 1c.rs 161ms 0.2ms 1.9MB 150ms 0ms rustc 1.88.0
rust 1.rs 195ms 1.3ms 1.9MB 183ms 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 0.4ms 1.9MB 0ms 0ms rustc 1.88.0
rust 5c-m.rs 15ms 0.6ms 3.4MB 23ms 0ms rustc 1.88.0
rust 5-m.rs 16ms 0.4ms 3.2MB 27ms 0ms rustc 1.88.0
rust 1c.rs 19ms 0.4ms 1.9MB 10ms 0ms rustc 1.88.0
chapel 5.chpl 21ms 1.9ms 28.4MB 20ms 0ms chpl 1.31.0
rust 1.rs 22ms 0.5ms 1.9MB 10ms 0ms rustc 1.88.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 1.2ms 0.0ms 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 11ms 0.6ms 28.8MB 0ms 0ms chpl 1.31.0

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 227ms 16ms 27.6MB 660ms 13ms rustc 1.88.0
rust 8.rs 411ms 5.1ms 24.2MB 390ms 7ms rustc 1.88.0
chapel 3-m.chpl 758ms 2.5ms 86.9MB 1433ms 10ms 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 33ms 3.8ms 15.8MB 60ms 7ms rustc 1.88.0
rust 8.rs 57ms 3.0ms 11.6MB 40ms 3ms rustc 1.88.0
chapel 3-m.chpl 117ms 1.8ms 87.0MB 203ms 3ms chpl 1.31.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 164ms 0.5ms 1.8MB 160ms 0ms rustc 1.88.0
rust 7-i.rs 219ms 0.6ms 1.8MB 210ms 0ms rustc 1.88.0
rust 1.rs 229ms 0.2ms 1.8MB 220ms 0ms rustc 1.88.0
rust 3.rs 279ms 0.6ms 1.9MB 270ms 0ms rustc 1.90.0-nightly
rust 2.rs 279ms 0.4ms 1.8MB 270ms 0ms rustc 1.88.0
chapel 2.chpl 322ms 1.9ms 28.9MB 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 19ms 0.1ms 1.8MB 10ms 0ms rustc 1.88.0
rust 7-i.rs 24ms 0.3ms 1.8MB 20ms 0ms rustc 1.88.0
rust 1.rs 25ms 0.4ms 1.8MB 20ms 0ms rustc 1.88.0
rust 3.rs 30ms 0.2ms 1.8MB 20ms 0ms rustc 1.90.0-nightly
rust 2.rs 30ms 0.3ms 1.6MB 20ms 0ms rustc 1.88.0
chapel 2.chpl 43ms 0.4ms 28.8MB 40ms 0ms chpl 1.31.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 446ms 0.8ms 28.3MB 440ms 0ms chpl 1.31.0
rust 1.rs 1530ms 10ms 2.7MB 1310ms 200ms rustc 1.88.0
rust 2.rs 1715ms 8.1ms 2.7MB 1627ms 77ms rustc 1.88.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 115ms 1.5ms 30.4MB 110ms 0ms chpl 1.31.0
rust 1.rs 321ms 0.5ms 2.4MB 297ms 10ms rustc 1.88.0
rust 2.rs 380ms 0.8ms 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 435ms 3.4ms 78.4MB 443ms 13ms rustc 1.88.0
chapel 3.chpl 1387ms 2.0ms 246.2MB 1340ms 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 51ms 0.9ms 11.6MB 43ms 0ms rustc 1.88.0
chapel 3.chpl 162ms 2.3ms 48.9MB 143ms 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 120ms 0.3ms 1.8MB 110ms 0ms rustc 1.88.0
chapel 1.chpl 1210ms 43ms 29.0MB 1203ms 0ms chpl 1.31.0
rust 1.rs 1447ms 14ms 1.9MB 1437ms 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 0.7ms 1.8MB 20ms 0ms rustc 1.88.0
chapel 1.chpl 315ms 12ms 29.1MB 310ms 0ms chpl 1.31.0
rust 1.rs 370ms 15ms 1.9MB 360ms 0ms rustc 1.88.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 493ms 0.6ms 2.1MB 1910ms 0ms rustc 1.88.0
rust 8-m.rs 494ms 0.2ms 2.5MB 1907ms 3ms rustc 1.90.0-nightly
rust 8.rs 992ms 1.9ms 2.4MB 983ms 0ms rustc 1.90.0-nightly
rust 7.rs 1924ms 0.5ms 1.9MB 1913ms 0ms rustc 1.88.0
chapel 1-m.chpl 1924ms 19ms 28.9MB 3823ms 0ms chpl 1.31.0
rust 2-m.rs 2071ms 4.3ms 2.4MB 8133ms 3ms rustc 1.88.0
chapel 1.chpl 3743ms 29ms 28.8MB 3740ms 0ms chpl 1.31.0
rust 2.rs 4270ms 7.1ms 2.0MB 4260ms 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 2.3MB 470ms 3ms rustc 1.88.0
rust 8-m.rs 128ms 0.3ms 2.3MB 470ms 7ms rustc 1.90.0-nightly
rust 8.rs 250ms 0.4ms 2.1MB 240ms 0ms rustc 1.90.0-nightly
rust 7.rs 488ms 5.6ms 1.8MB 480ms 0ms rustc 1.88.0
chapel 1-m.chpl 492ms 2.1ms 28.9MB 953ms 0ms chpl 1.31.0
rust 2-m.rs 521ms 0.5ms 2.1MB 2013ms 0ms rustc 1.88.0
chapel 1.chpl 939ms 3.2ms 28.8MB 933ms 0ms chpl 1.31.0
rust 2.rs 1069ms 2.0ms 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 0.6ms 2.3MB 110ms 0ms rustc 1.90.0-nightly
rust 7-m.rs 36ms 0.0ms 2.1MB 113ms 0ms rustc 1.88.0
rust 8.rs 65ms 0.6ms 1.9MB 60ms 0ms rustc 1.90.0-nightly
rust 7.rs 127ms 1.7ms 1.8MB 120ms 0ms rustc 1.88.0
rust 2-m.rs 134ms 0.2ms 2.1MB 500ms 0ms rustc 1.88.0
chapel 1-m.chpl 138ms 9.9ms 28.9MB 250ms 3ms chpl 1.31.0
chapel 1.chpl 248ms 1.3ms 28.8MB 240ms 0ms chpl 1.31.0
rust 2.rs 270ms 1.7ms 1.9MB 260ms 0ms rustc 1.88.0