Programming Language and compiler
Benchmarks

Chapel VS Nim benchmarks

Current benchmark data was generated on Sun Jun 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.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 779ms 1.2ms 34.4MB 760ms 3ms nim 2.2.4
nim 2.nim 963ms 9.3ms 35.2MB 940ms 10ms nim/clang 2.2.4
chapel 4.chpl 1954ms 6.5ms 62.3MB 1947ms 0ms chpl 1.31.0
chapel 3.chpl 2047ms 28ms 60.3MB 2040ms 3ms chpl 1.31.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 75ms 4.0ms 5.5MB 63ms 0ms nim 2.2.4
nim 2.nim 91ms 2.7ms 5.8MB 80ms 0ms nim/clang 2.2.4
chapel 4.chpl 185ms 3.6ms 32.4MB 180ms 0ms chpl 1.31.0
chapel 3.chpl 185ms 0.6ms 32.2MB 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
chapel 1-m.chpl 2211ms 79ms 480.1MB 4320ms 70ms chpl 1.31.0
nim 1.nim timeout 0.0ms 574.3MB 2627ms 1900ms nim 2.2.4
nim 1.nim timeout 0.0ms 574.8MB 2630ms 1897ms 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 179ms 0.7ms 445.0MB 293ms 40ms chpl 1.31.0
nim 1.nim 4103ms 11ms 519.8MB 2090ms 1590ms nim/clang 2.2.4
nim 1.nim 4106ms 11ms 519.3MB 2163ms 1517ms nim 2.2.4

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 71ms 1.5ms 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 2.6ms 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 104ms 1.5ms 28.3MB 190ms 0ms chpl 1.31.0
nim 2.nim 189ms 1.2ms 1.5MB 180ms 0ms nim 2.2.4
nim 2.nim 241ms 2.6ms 1.8MB 230ms 0ms nim/clang 2.2.4
nim 1.nim 535ms 1.0ms 1.8MB 430ms 90ms nim/clang 2.2.4
nim 1.nim 558ms 2.5ms 1.5MB 473ms 67ms nim 2.2.4

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 5.chpl 21ms 0.7ms 28.4MB 20ms 0ms chpl 1.31.0
nim 2.nim 22ms 0.1ms 1.5MB 13ms 0ms nim 2.2.4
nim 2.nim 27ms 1.0ms 1.8MB 20ms 0ms nim/clang 2.2.4
nim 1.nim 57ms 0.5ms 1.8MB 40ms 3ms nim/clang 2.2.4
nim 1.nim 57ms 0.2ms 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 0.9ms 0.0ms 1.5MB 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 9.3ms 1.5ms 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 747ms 5.4ms 87.2MB 1417ms 10ms 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 113ms 1.0ms 87.0MB 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 318ms 0.5ms 1.8MB 310ms 0ms nim 2.2.4
chapel 2.chpl 322ms 1.7ms 28.8MB 320ms 0ms chpl 1.31.0
nim 2.nim 344ms 2.8ms 2.0MB 337ms 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 34ms 0.6ms 1.8MB 30ms 0ms nim 2.2.4
nim 2.nim 37ms 1.1ms 2.0MB 30ms 0ms nim/clang 2.2.4
chapel 2.chpl 44ms 1.3ms 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 444ms 0.7ms 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 113ms 1.8ms 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 1387ms 3.3ms 220.1MB 1343ms 40ms chpl 1.31.0
nim 1.nim 1643ms 3.6ms 152.4MB 1610ms 20ms nim/clang 2.2.4
nim 1.nim 1672ms 3.8ms 152.1MB 1640ms 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 3.8ms 49.0MB 143ms 13ms chpl 1.31.0
nim 1.nim 174ms 2.8ms 16.8MB 160ms 0ms nim/clang 2.2.4
nim 1.nim 176ms 2.8ms 17.4MB 160ms 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 1181ms 6.5ms 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 307ms 4.2ms 29.1MB 303ms 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 1922ms 11ms 29.0MB 3817ms 0ms chpl 1.31.0
nim 1.nim 3587ms 1.2ms 1.6MB 3580ms 0ms nim/clang 2.2.4
nim 1.nim 3604ms 3.0ms 1.8MB 3593ms 0ms nim 2.2.4
chapel 1.chpl 3716ms 4.8ms 28.8MB 3710ms 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 1.0ms 28.9MB 957ms 0ms chpl 1.31.0
nim 1.nim 898ms 0.5ms 1.5MB 890ms 0ms nim/clang 2.2.4
nim 1.nim 903ms 2.7ms 1.3MB 893ms 0ms nim 2.2.4
chapel 1.chpl 940ms 1.7ms 28.8MB 940ms 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 133ms 1.1ms 28.9MB 240ms 0ms chpl 1.31.0
nim 1.nim 226ms 0.4ms 1.5MB 220ms 0ms nim/clang 2.2.4
nim 1.nim 229ms 1.5ms 1.3MB 220ms 0ms nim 2.2.4
chapel 1.chpl 246ms 3.6ms 28.8MB 240ms 0ms chpl 1.31.0