Programming Language and compiler
Benchmarks

Nim VS D benchmarks

Current benchmark data was generated on Thu Feb 01 2024, 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 835ms 5.3ms 34.4MB 813ms 7ms nim 2.0.2
nim 2.nim 1170ms 1.0ms 34.7MB 1150ms 7ms nim/clang 2.0.2
d 1.d 1779ms 2.9ms 312.5MB 1747ms 33ms ldc2 1.36.0
d 1.d 2563ms 15ms 314.0MB 2717ms 53ms dmd 2.106.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 80ms 2.9ms 5.5MB 70ms 0ms nim 2.0.2
nim 2.nim 113ms 2.9ms 5.8MB 100ms 0ms nim/clang 2.0.2
d 1.d 163ms 0.8ms 208.7MB 133ms 13ms ldc2 1.36.0
d 1.d 224ms 4.1ms 210.7MB 193ms 13ms dmd 2.106.1

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d timeout 0.0ms 16.5MB 4960ms 23ms dmd 2.106.1
d 1.d timeout 0.0ms 15.5MB 4967ms 20ms ldc2 1.36.0
nim 1.nim timeout 0.0ms 549.4MB 2490ms 2053ms nim 2.0.2
nim 1.nim timeout 0.0ms 558.6MB 2537ms 1997ms nim/clang 2.0.2

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1000ms 15ms 8.4MB 987ms 3ms ldc2 1.36.0
d 1.d 1350ms 2.3ms 10.5MB 1327ms 13ms dmd 2.106.1
nim 1.nim 4326ms 9.0ms 519.8MB 2247ms 1653ms nim/clang 2.0.2
nim 1.nim 4400ms 29ms 519.4MB 2180ms 1793ms nim 2.0.2

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 188ms 3.5ms 1.5MB 177ms 0ms nim 2.0.2
d 1.d 194ms 1.3ms 33.3MB 177ms 3ms ldc2 1.36.0
nim 2.nim 239ms 3.2ms 1.8MB 227ms 0ms nim/clang 2.0.2
nim 1.nim 549ms 1.1ms 1.8MB 447ms 87ms nim/clang 2.0.2
nim 1.nim 573ms 0.7ms 1.5MB 463ms 90ms nim 2.0.2
d 1.d 612ms 2.2ms 38.6MB 590ms 7ms dmd 2.106.1

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 20ms 0.4ms 1.5MB 10ms 0ms nim 2.0.2
d 1.d 25ms 1.1ms 10.3MB 20ms 0ms ldc2 1.36.0
nim 2.nim 26ms 0.6ms 1.6MB 20ms 0ms nim/clang 2.0.2
nim 1.nim 58ms 0.6ms 1.8MB 43ms 0ms nim/clang 2.0.2
nim 1.nim 61ms 1.0ms 1.5MB 43ms 7ms nim 2.0.2
d 1.d 65ms 0.2ms 12.3MB 57ms 0ms dmd 2.106.1

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1.0ms 0.1ms 1.6MB 0ms 0ms nim 2.0.2
nim 1.nim 1.2ms 0.1ms 1.9MB 0ms 0ms nim/clang 2.0.2
d 1.d 1.7ms 0.1ms 3.0MB 0ms 0ms ldc2 1.36.0
d 1.d 2.2ms 0.1ms 4.9MB 0ms 0ms dmd 2.106.1

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 2-m.d 3.4ms 5.9ms 18.5MB 405ms 710ms ldc2 1.36.0
nim 1.nim 895ms 13ms 97.3MB 283ms 583ms nim 2.0.2
nim 1.nim 909ms 5.9ms 98.3MB 293ms 583ms nim/clang 2.0.2
d 1.d 1030ms 1.0ms 18.3MB 393ms 690ms ldc2 1.36.0
d 2.d 1032ms 3.0ms 25.3MB 553ms 677ms dmd 2.106.1
d 1.d 1036ms 0.9ms 22.0MB 533ms 700ms dmd 2.106.1

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 147ms 2.3ms 18.0MB 27ms 100ms nim 2.0.2
nim 1.nim 149ms 1.0ms 18.1MB 43ms 90ms nim/clang 2.0.2
d 1.d 1009ms 0.3ms 22.3MB 50ms 140ms ldc2 1.36.0
d 1.d 1012ms 2.4ms 25.3MB 80ms 133ms dmd 2.106.1
d 2.d 1012ms 2.6ms 20.6MB 63ms 130ms ldc2 1.36.0
d 2.d 1014ms 3.0ms 23.4MB 77ms 130ms dmd 2.106.1

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 108ms 1.5ms 1.6MB 100ms 0ms nim/clang 2.0.2
nim 2.nim 109ms 2.7ms 1.4MB 97ms 0ms nim 2.0.2
d 1.d 130ms 1.5ms 5.8MB 120ms 3ms ldc2 1.36.0
d 1.d 175ms 2.6ms 7.8MB 160ms 7ms dmd 2.106.1
nim 1.nim timeout 0.0ms 1.3MB 4990ms 0ms nim 2.0.2
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.0.2

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 316ms 0.4ms 1.9MB 307ms 0ms nim/clang 2.0.2
nim 2.nim 323ms 4.4ms 1.4MB 313ms 0ms nim 2.0.2
d 1.d 373ms 2.0ms 4.1MB 360ms 13ms ldc2 1.36.0
d 1.d 508ms 1.6ms 7.8MB 497ms 10ms dmd 2.106.1
nim 1.nim timeout 0.0ms 1.3MB 4990ms 0ms nim 2.0.2
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.0.2

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 48ms 0.6ms 1.5MB 40ms 0ms nim/clang 2.0.2
nim 2.nim 49ms 0.7ms 1.3MB 40ms 0ms nim 2.0.2
d 1.d 57ms 1.4ms 5.8MB 50ms 0ms ldc2 1.36.0
d 1.d 81ms 0.6ms 7.8MB 77ms 0ms dmd 2.106.1
nim 1.nim 536ms 10ms 1.5MB 523ms 0ms nim/clang 2.0.2
nim 1.nim 536ms 8.6ms 1.3MB 523ms 0ms nim 2.0.2

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 322ms 1.3ms 7.4MB 310ms 0ms ldc2 1.36.0
nim 1.nim 389ms 2.4ms 4.8MB 377ms 0ms nim/clang 2.0.2
nim 1.nim 577ms 3.8ms 4.5MB 563ms 0ms nim 2.0.2
d 1.d 2117ms 11ms 9.0MB 2103ms 0ms dmd 2.106.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 16ms 0.3ms 3.0MB 10ms 0ms ldc2 1.36.0
nim 1.nim 19ms 0.8ms 1.9MB 10ms 0ms nim/clang 2.0.2
nim 1.nim 28ms 0.5ms 1.6MB 20ms 0ms nim 2.0.2
d 1.d 97ms 11ms 4.4MB 87ms 0ms dmd 2.106.1

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 553ms 0.7ms 34.4MB 533ms 3ms nim 2.0.2
nim 1.nim 653ms 8.9ms 36.5MB 633ms 3ms nim/clang 2.0.2
d 1.d 976ms 4.9ms 312.5MB 930ms 43ms ldc2 1.36.0
d 1.d 1649ms 16ms 314.4MB 1770ms 37ms dmd 2.106.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 122ms 0.7ms 9.8MB 110ms 0ms nim 2.0.2
nim 1.nim 143ms 2.1ms 10.0MB 130ms 0ms nim/clang 2.0.2
d 1.d 205ms 2.4ms 312.7MB 163ms 27ms ldc2 1.36.0
d 1.d 322ms 2.9ms 314.4MB 293ms 17ms dmd 2.106.1

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 318ms 1.0ms 1.8MB 310ms 0ms nim 2.0.2
nim 2.nim 343ms 3.5ms 2.0MB 333ms 0ms nim/clang 2.0.2
d 2.d 359ms 0.7ms 2.9MB 350ms 0ms ldc2 1.36.0
d 1.d 361ms 0.8ms 2.9MB 350ms 0ms ldc2 1.36.0
d 1.d 673ms 1.2ms 4.4MB 660ms 0ms dmd 2.106.1
d 2.d 2011ms 6.9ms 4.5MB 2000ms 0ms dmd 2.106.1

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 34ms 0.5ms 1.8MB 23ms 0ms nim 2.0.2
nim 2.nim 36ms 0.1ms 2.0MB 30ms 0ms nim/clang 2.0.2
d 1.d 39ms 0.6ms 2.9MB 30ms 0ms ldc2 1.36.0
d 2.d 39ms 0.4ms 2.9MB 27ms 0ms ldc2 1.36.0
d 1.d 71ms 1.0ms 4.5MB 60ms 0ms dmd 2.106.1
d 2.d 206ms 3.5ms 4.4MB 193ms 0ms dmd 2.106.1

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 282ms 2.6ms 41.5MB 270ms 0ms nim 2.0.2
d 1.d 315ms 1.5ms 43.8MB 300ms 3ms ldc2 1.36.0
d 1.d 340ms 4.4ms 77.1MB 320ms 7ms dmd 2.106.1
nim 1.nim 351ms 9.9ms 41.8MB 337ms 0ms nim/clang 2.0.2
d 2.d 812ms 0.6ms 47.7MB 787ms 10ms ldc2 1.36.0
d 2.d 1117ms 1.8ms 49.3MB 1093ms 7ms dmd 2.106.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 56ms 1.3ms 11.5MB 47ms 0ms nim 2.0.2
nim 1.nim 65ms 1.0ms 11.8MB 53ms 0ms nim/clang 2.0.2
d 1.d 65ms 0.3ms 13.8MB 53ms 0ms ldc2 1.36.0
d 1.d 73ms 2.1ms 23.8MB 63ms 0ms dmd 2.106.1
d 2.d 202ms 0.7ms 15.7MB 183ms 3ms ldc2 1.36.0
d 2.d 280ms 1.1ms 17.4MB 267ms 3ms dmd 2.106.1

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 601ms 7.0ms 172.0MB 777ms 20ms ldc2 1.36.0
d 3.d 1276ms 0.9ms 174.9MB 1450ms 37ms dmd 2.106.1
nim 1.nim 1623ms 6.2ms 152.4MB 1583ms 23ms nim/clang 2.0.2
nim 1.nim 1647ms 11ms 151.5MB 1617ms 13ms nim 2.0.2

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 67ms 1.4ms 23.6MB 70ms 3ms ldc2 1.36.0
d 3.d 138ms 4.7ms 27.5MB 150ms 3ms dmd 2.106.1
nim 1.nim 172ms 1.3ms 16.4MB 153ms 7ms nim 2.0.2
nim 1.nim 173ms 1.6ms 16.7MB 160ms 0ms nim/clang 2.0.2

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 3574ms 1.9ms 1.6MB 3567ms 0ms nim/clang 2.0.2
d 1.d 3582ms 3.5ms 3.9MB 3567ms 0ms ldc2 1.36.0
nim 1.nim 3591ms 12ms 1.4MB 3580ms 0ms nim 2.0.2
d 1.d 3609ms 12ms 5.8MB 3600ms 0ms dmd 2.106.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 895ms 0.8ms 1.5MB 887ms 0ms nim/clang 2.0.2
d 1.d 897ms 1.0ms 3.5MB 880ms 0ms ldc2 1.36.0
nim 1.nim 899ms 2.9ms 1.8MB 890ms 0ms nim 2.0.2
d 1.d 907ms 1.8ms 5.3MB 900ms 0ms dmd 2.106.1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 226ms 0.0ms 1.5MB 217ms 0ms nim/clang 2.0.2
nim 1.nim 227ms 1.0ms 1.8MB 220ms 0ms nim 2.0.2
d 1.d 229ms 0.4ms 3.1MB 217ms 0ms ldc2 1.36.0
d 1.d 232ms 2.4ms 5.0MB 223ms 0ms dmd 2.106.1