Programming Language and compiler
Benchmarks

Chapel VS Nim benchmarks

Current benchmark data was generated on Mon May 19 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
nim 2.nim 836ms 40ms 34.9MB 817ms 7ms nim 2.2.4
nim 2.nim 971ms 5.9ms 35.2MB 953ms 3ms nim/clang 2.2.4
chapel 4.chpl 1952ms 9.9ms 62.3MB 1943ms 3ms chpl 1.31.0
chapel 3.chpl 2127ms 36ms 62.3MB 2120ms 0ms chpl 1.31.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 77ms 1.2ms 5.5MB 70ms 0ms nim 2.2.4
nim 2.nim 93ms 2.7ms 5.8MB 80ms 0ms nim/clang 2.2.4
chapel 4.chpl 184ms 1.8ms 30.3MB 180ms 0ms chpl 1.31.0
chapel 3.chpl 186ms 1.6ms 32.3MB 183ms 0ms chpl 1.31.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 2280ms 43ms 659.8MB 4437ms 87ms chpl 1.31.0
nim 1.nim timeout 0.0ms 575.4MB 2623ms 1900ms nim 2.2.4
nim 1.nim timeout 0.0ms 575.7MB 2560ms 1967ms nim/clang 2.2.4

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 206ms 4.4ms 630.1MB 320ms 60ms chpl 1.31.0
nim 1.nim 4094ms 5.6ms 519.3MB 2117ms 1553ms nim 2.2.4
nim 1.nim 4109ms 27ms 518.7MB 2100ms 1580ms nim/clang 2.2.4

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 71ms 1.6ms 32.5MB 70ms 0ms chpl 1.31.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 33ms 3.0ms 30.5MB 30ms 0ms chpl 1.31.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 5-m.chpl 105ms 0.9ms 28.4MB 190ms 0ms chpl 1.31.0
nim 2.nim 188ms 2.8ms 1.5MB 180ms 0ms nim 2.2.4
nim 2.nim 243ms 2.1ms 1.8MB 230ms 0ms nim/clang 2.2.4
nim 1.nim 533ms 0.9ms 1.8MB 453ms 67ms nim/clang 2.2.4
nim 1.nim 557ms 2.9ms 1.5MB 470ms 73ms nim 2.2.4

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 5.chpl 22ms 2.1ms 28.4MB 20ms 0ms chpl 1.31.0
nim 2.nim 22ms 0.7ms 1.5MB 10ms 0ms nim 2.2.4
nim 2.nim 27ms 1.0ms 1.8MB 20ms 0ms nim/clang 2.2.4
nim 1.nim 56ms 0.8ms 1.8MB 43ms 0ms nim/clang 2.2.4
nim 1.nim 59ms 1.8ms 1.5MB 40ms 3ms nim 2.2.4

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1.0ms 0.0ms 1.6MB 0ms 0ms nim 2.2.4
nim 1.nim 1.1ms 0.0ms 1.9MB 0ms 0ms nim/clang 2.2.4
chapel 1.chpl 11ms 0.3ms 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
chapel 3-m.chpl 749ms 3.1ms 86.9MB 1420ms 7ms chpl 1.31.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 3-m.chpl 115ms 1.4ms 77.0MB 200ms 0ms chpl 1.31.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 319ms 1.7ms 1.8MB 310ms 0ms nim 2.2.4
chapel 2.chpl 322ms 4.1ms 28.9MB 317ms 0ms chpl 1.31.0
nim 2.nim 340ms 0.5ms 2.0MB 330ms 0ms nim/clang 2.2.4

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 35ms 1.0ms 1.8MB 30ms 0ms nim 2.2.4
nim 2.nim 40ms 6.2ms 2.0MB 33ms 0ms nim/clang 2.2.4
chapel 2.chpl 45ms 0.3ms 28.9MB 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 445ms 2.1ms 30.4MB 440ms 0ms chpl 1.31.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 115ms 0.6ms 30.4MB 110ms 0ms chpl 1.31.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 3.chpl 1396ms 9.0ms 220.1MB 1353ms 37ms chpl 1.31.0
nim 1.nim 1651ms 5.5ms 151.9MB 1620ms 13ms nim/clang 2.2.4
nim 1.nim 1683ms 16ms 152.1MB 1650ms 20ms nim 2.2.4

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 3.chpl 163ms 2.2ms 48.9MB 140ms 13ms chpl 1.31.0
nim 1.nim 174ms 3.4ms 17.6MB 160ms 0ms nim/clang 2.2.4
nim 1.nim 176ms 3.6ms 17.2MB 163ms 0ms nim 2.2.4

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 1184ms 16ms 29.1MB 1177ms 0ms chpl 1.31.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 315ms 8.4ms 29.1MB 310ms 0ms chpl 1.31.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 1912ms 1.5ms 28.9MB 3800ms 0ms chpl 1.31.0
nim 1.nim 3587ms 2.7ms 1.6MB 3580ms 0ms nim/clang 2.2.4
nim 1.nim 3610ms 12ms 1.4MB 3597ms 0ms nim 2.2.4
chapel 1.chpl 3730ms 9.2ms 28.8MB 3720ms 0ms chpl 1.31.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 492ms 1.7ms 28.8MB 960ms 0ms chpl 1.31.0
nim 1.nim 899ms 0.8ms 1.5MB 890ms 0ms nim/clang 2.2.4
nim 1.nim 902ms 1.4ms 1.3MB 893ms 0ms nim 2.2.4
chapel 1.chpl 940ms 3.7ms 28.8MB 933ms 0ms chpl 1.31.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 134ms 0.9ms 28.9MB 240ms 0ms chpl 1.31.0
nim 1.nim 226ms 0.1ms 1.5MB 220ms 0ms nim/clang 2.2.4
nim 1.nim 229ms 1.9ms 1.3MB 220ms 0ms nim 2.2.4
chapel 1.chpl 249ms 2.0ms 28.8MB 243ms 0ms chpl 1.31.0