Programming Language and compiler
Benchmarks

Chapel VS C++ benchmarks

Current benchmark data was generated on Tue Mar 25 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
chapel 3.chpl 2069ms 6.5ms 60.3MB 2057ms 0ms chpl 1.31.0
chapel 4.chpl 2076ms 200ms 62.2MB 2063ms 3ms chpl 1.31.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 3.chpl 188ms 1.6ms 32.2MB 180ms 0ms chpl 1.31.0
chapel 4.chpl 196ms 21ms 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
chapel 1-m.chpl 2266ms 93ms 525.8MB 4393ms 80ms chpl 1.31.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 198ms 4.8ms 494.6MB 317ms 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 73ms 2.7ms 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 34ms 1.3ms 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 106ms 1.8ms 28.3MB 190ms 0ms chpl 1.31.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 5.chpl 21ms 1.3ms 28.4MB 20ms 0ms chpl 1.31.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 1.1ms 0.1ms 1.4MB 0ms 0ms g++ 11.4.0
cpp 1.cpp 1.5ms 0.1ms 2.3MB 0ms 0ms clang++ 14.0.0-1ubuntu1.1
chapel 1.chpl 11ms 0.5ms 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 1.1ms 87.0MB 1410ms 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 116ms 0.5ms 87.0MB 200ms 3ms chpl 1.31.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 167ms 0.1ms 1.5MB 160ms 0ms g++ 11.4.0
cpp 0-i.cpp 171ms 0.5ms 2.3MB 160ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 315ms 0.8ms 2.3MB 307ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 316ms 0.4ms 1.8MB 307ms 0ms g++ 11.4.0
chapel 2.chpl 326ms 5.3ms 28.9MB 317ms 0ms chpl 1.31.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 19ms 0.1ms 1.5MB 10ms 0ms g++ 11.4.0
cpp 0-i.cpp 19ms 0.2ms 2.3MB 10ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 34ms 0.7ms 1.9MB 30ms 0ms g++ 11.4.0
cpp 1.cpp 34ms 0.7ms 2.3MB 30ms 0ms clang++ 14.0.0-1ubuntu1.1
chapel 2.chpl 45ms 2.3ms 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 2.3ms 28.4MB 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 116ms 1.2ms 30.3MB 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 1399ms 7.7ms 222.1MB 1347ms 43ms chpl 1.31.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 3.chpl 164ms 2.9ms 49.0MB 150ms 10ms chpl 1.31.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 1181ms 3.6ms 29.2MB 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 308ms 2.9ms 29.0MB 303ms 0ms chpl 1.31.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 474ms 9.5ms 3.5MB 1827ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 484ms 1.5ms 2.1MB 1883ms 0ms g++ 11.4.0
cpp 6-im.cpp 927ms 9.1ms 2.1MB 3633ms 0ms g++ 11.4.0
cpp 6-im.cpp 928ms 16ms 3.6MB 3630ms 0ms clang++ 14.0.0-1ubuntu1.1
chapel 1-m.chpl 1928ms 19ms 28.8MB 3830ms 0ms chpl 1.31.0
chapel 1.chpl 3725ms 17ms 28.8MB 3720ms 0ms chpl 1.31.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 124ms 0.6ms 3.4MB 460ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 130ms 0.6ms 2.0MB 490ms 0ms g++ 11.4.0
cpp 6-im.cpp 238ms 0.5ms 3.4MB 903ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 240ms 2.0ms 2.1MB 917ms 0ms g++ 11.4.0
chapel 1-m.chpl 492ms 0.6ms 28.5MB 957ms 0ms chpl 1.31.0
chapel 1.chpl 940ms 1.1ms 28.8MB 933ms 0ms chpl 1.31.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 40ms 0.2ms 2.0MB 130ms 0ms g++ 11.4.0
cpp 8-m.cpp 41ms 9.9ms 3.4MB 120ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 65ms 0.7ms 3.4MB 230ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 67ms 0.4ms 2.1MB 240ms 0ms g++ 11.4.0
chapel 1-m.chpl 135ms 1.0ms 28.9MB 240ms 0ms chpl 1.31.0
chapel 1.chpl 247ms 2.4ms 28.8MB 240ms 0ms chpl 1.31.0