Programming Language and compiler
Benchmarks

Chapel VS D benchmarks

Current benchmark data was generated on Fri Aug 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
chapel 4.chpl 1943ms 3.5ms 62.3MB 1937ms 0ms chpl 1.31.0
chapel 3.chpl 2057ms 34ms 62.4MB 2050ms 0ms chpl 1.31.0
d 1.d 2187ms 1.9ms 312.5MB 2160ms 33ms ldc2 1.41.0
d 1.d 3000ms 18ms 314.1MB 3163ms 50ms dmd 2.111.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 4.chpl 185ms 1.5ms 32.4MB 180ms 0ms chpl 1.31.0
chapel 3.chpl 188ms 2.4ms 32.3MB 187ms 0ms chpl 1.31.0
d 1.d 205ms 3.2ms 207.9MB 180ms 13ms ldc2 1.41.0
d 1.d 262ms 1.9ms 209.7MB 237ms 10ms dmd 2.111.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 2227ms 82ms 611.9MB 4340ms 77ms chpl 1.31.0
d 1.d timeout 0.0ms 16.5MB 4970ms 17ms dmd 2.111.0
d 1.d timeout 0.0ms 17.5MB 4963ms 27ms ldc2 1.41.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 195ms 2.0ms 578.1MB 313ms 50ms chpl 1.31.0
d 1.d 1058ms 5.4ms 10.2MB 1033ms 10ms ldc2 1.41.0
d 1.d 1373ms 11ms 12.5MB 1350ms 10ms dmd 2.111.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 69ms 0.2ms 32.5MB 70ms 0ms chpl 1.31.0
d 1.d 2555ms 1.6ms 8.1MB 2543ms 0ms ldc2 1.41.0
d 1.d 2870ms 7.3ms 10.4MB 2860ms 0ms dmd 2.111.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 33ms 0.3ms 30.5MB 30ms 0ms chpl 1.31.0
d 1.d 443ms 3.2ms 8.1MB 430ms 0ms ldc2 1.41.0
d 1.d 517ms 0.4ms 10.5MB 510ms 0ms dmd 2.111.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 5-m.chpl 106ms 1.0ms 28.4MB 190ms 0ms chpl 1.31.0
d 1.d 112ms 2.7ms 2.9MB 103ms 0ms ldc2 1.41.0
d 1.d 641ms 1.0ms 4.6MB 630ms 0ms dmd 2.111.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 14ms 0.5ms 2.9MB 10ms 0ms ldc2 1.41.0
chapel 5.chpl 20ms 1.0ms 28.4MB 20ms 0ms chpl 1.31.0
d 1.d 67ms 0.8ms 4.8MB 60ms 0ms dmd 2.111.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1.6ms 0.1ms 2.9MB 0ms 0ms ldc2 1.41.0
d 1.d 2.0ms 0.2ms 5.1MB 0ms 0ms dmd 2.111.0
chapel 1.chpl 10ms 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
d 1-m.d 639ms 21ms 47.9MB 2073ms 10ms ldc2 1.41.0
chapel 3-m.chpl 746ms 4.8ms 99.0MB 1410ms 7ms chpl 1.31.0
d 1-m.d 1884ms 33ms 50.0MB 5657ms 13ms dmd 2.111.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-m.d 92ms 1.5ms 38.7MB 253ms 7ms ldc2 1.41.0
chapel 3-m.chpl 114ms 2.1ms 87.0MB 200ms 3ms chpl 1.31.0
d 1-m.d 212ms 8.4ms 40.9MB 610ms 13ms dmd 2.111.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 324ms 1.7ms 28.8MB 320ms 0ms chpl 1.31.0
d 1.d 361ms 0.5ms 2.9MB 350ms 0ms ldc2 1.41.0
d 2.d 361ms 1.4ms 2.9MB 350ms 0ms ldc2 1.41.0
d 1.d 683ms 2.2ms 4.8MB 673ms 0ms dmd 2.111.0
d 2.d 2033ms 7.1ms 4.8MB 2023ms 0ms dmd 2.111.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 2.d 39ms 0.7ms 2.9MB 30ms 0ms ldc2 1.41.0
d 1.d 39ms 0.3ms 2.9MB 30ms 0ms ldc2 1.41.0
chapel 2.chpl 43ms 1.3ms 28.8MB 40ms 0ms chpl 1.31.0
d 1.d 71ms 1.1ms 4.8MB 60ms 0ms dmd 2.111.0
d 2.d 208ms 2.9ms 4.8MB 200ms 0ms dmd 2.111.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 444ms 0.8ms 28.3MB 440ms 0ms chpl 1.31.0
d 1.d 2445ms 17ms 8.1MB 2407ms 423ms ldc2 1.41.0
d 1.d 4429ms 2.9ms 10.5MB 4383ms 463ms dmd 2.111.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 114ms 0.4ms 30.4MB 110ms 0ms chpl 1.31.0
d 1.d 582ms 3.3ms 8.2MB 557ms 110ms ldc2 1.41.0
d 1.d 1056ms 3.2ms 10.4MB 1033ms 110ms dmd 2.111.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 584ms 1.7ms 172.2MB 767ms 20ms ldc2 1.41.0
d 3.d 1200ms 3.9ms 177.3MB 1387ms 27ms dmd 2.111.0
chapel 3.chpl 1388ms 7.1ms 246.1MB 1340ms 43ms chpl 1.31.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 63ms 0.8ms 26.3MB 70ms 0ms ldc2 1.41.0
d 3.d 126ms 0.9ms 31.7MB 137ms 0ms dmd 2.111.0
chapel 3.chpl 159ms 2.9ms 48.9MB 140ms 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 1203ms 44ms 29.1MB 1197ms 0ms chpl 1.31.0
d 1.d 4859ms 111ms 4.3MB 4827ms 367ms ldc2 1.41.0
d 1.d timeout 0.0ms 6.5MB 4960ms 297ms dmd 2.111.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 308ms 3.0ms 29.1MB 303ms 0ms chpl 1.31.0
d 1.d 1214ms 8.8ms 3.9MB 1190ms 100ms ldc2 1.41.0
d 1.d 2046ms 14ms 6.5MB 2037ms 100ms dmd 2.111.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 1914ms 2.2ms 29.0MB 3800ms 0ms chpl 1.31.0
d 1.d 3597ms 3.2ms 6.2MB 3587ms 0ms ldc2 1.41.0
d 1.d 3655ms 25ms 8.4MB 3643ms 0ms dmd 2.111.0
chapel 1.chpl 3718ms 16ms 28.8MB 3713ms 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 491ms 2.1ms 29.0MB 953ms 0ms chpl 1.31.0
d 1.d 901ms 0.9ms 3.5MB 890ms 0ms ldc2 1.41.0
d 1.d 921ms 9.3ms 5.3MB 910ms 0ms dmd 2.111.0
chapel 1.chpl 945ms 5.5ms 28.6MB 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 132ms 0.5ms 28.9MB 240ms 0ms chpl 1.31.0
d 1.d 228ms 1.4ms 3.3MB 220ms 0ms ldc2 1.41.0
d 1.d 233ms 1.9ms 7.2MB 220ms 0ms dmd 2.111.0
chapel 1.chpl 246ms 3.8ms 28.8MB 243ms 0ms chpl 1.31.0