Programming Language and compiler
Benchmarks

Nim VS D benchmarks

Current benchmark data was generated on Sun Dec 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 793ms 24ms 34.9MB 777ms 3ms nim 2.2.0
nim 2.nim 986ms 7.4ms 34.2MB 967ms 7ms nim/clang 2.2.0
d 1.d 1733ms 100ms 312.5MB 1707ms 33ms ldc2 1.39.0
d 1.d 2677ms 15ms 314.4MB 2853ms 47ms dmd 2.109.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 72ms 1.1ms 5.5MB 60ms 0ms nim 2.2.0
nim 2.nim 94ms 2.8ms 5.8MB 80ms 0ms nim/clang 2.2.0
d 1.d 157ms 1.1ms 208.7MB 130ms 13ms ldc2 1.39.0
d 1.d 235ms 9.2ms 209.9MB 203ms 13ms dmd 2.109.1

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 16.1MB 4970ms 20ms dmd 2.109.1
d 1.d timeout 0.0ms 15.5MB 4960ms 27ms ldc2 1.39.0
nim 1.nim timeout 0.0ms 545.3MB 2497ms 2050ms nim 2.2.0
nim 1.nim timeout 0.0ms 552.6MB 2520ms 2020ms nim/clang 2.2.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1034ms 18ms 8.4MB 1010ms 10ms ldc2 1.39.0
d 1.d 1318ms 12ms 10.6MB 1300ms 7ms dmd 2.109.1
nim 1.nim 4405ms 8.9ms 519.8MB 2203ms 1773ms nim/clang 2.2.0
nim 1.nim 4519ms 16ms 519.3MB 2230ms 1857ms nim 2.2.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 188ms 0.7ms 1.5MB 177ms 0ms nim 2.2.0
d 1.d 196ms 1.3ms 33.2MB 177ms 7ms ldc2 1.39.0
nim 2.nim 239ms 2.9ms 1.8MB 227ms 0ms nim/clang 2.2.0
nim 1.nim 569ms 1.0ms 1.8MB 433ms 123ms nim/clang 2.2.0
nim 1.nim 596ms 1.0ms 1.5MB 467ms 113ms nim 2.2.0
d 1.d 620ms 0.6ms 51.0MB 610ms 0ms dmd 2.109.1

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 21ms 0.6ms 1.5MB 10ms 0ms nim 2.2.0
d 1.d 24ms 0.1ms 8.1MB 20ms 0ms ldc2 1.39.0
nim 2.nim 26ms 0.4ms 1.6MB 17ms 0ms nim/clang 2.2.0
nim 1.nim 60ms 1.1ms 1.8MB 40ms 7ms nim/clang 2.2.0
nim 1.nim 63ms 1.0ms 1.5MB 43ms 7ms nim 2.2.0
d 1.d 67ms 1.4ms 10.1MB 53ms 7ms dmd 2.109.1

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1.2ms 0.0ms 1.8MB 0ms 0ms nim/clang 2.2.0
nim 1.nim 1.2ms 0.2ms 1.6MB 0ms 0ms nim 2.2.0
d 1.d 1.4ms 0.8ms 3.0MB 0ms 0ms ldc2 1.39.0
d 1.d 2.2ms 0.4ms 5.0MB 0ms 0ms dmd 2.109.1

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 996ms 14ms 99.4MB 277ms 693ms nim/clang 2.2.0
nim 1.nim 1015ms 23ms 99.2MB 290ms 693ms nim 2.2.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 159ms 2.7ms 17.8MB 37ms 103ms nim 2.2.0
nim 1.nim 166ms 6.9ms 18.1MB 37ms 113ms nim/clang 2.2.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 110ms 2.7ms 1.6MB 100ms 0ms nim/clang 2.2.0
nim 2.nim 116ms 2.9ms 1.3MB 107ms 0ms nim 2.2.0
d 1.d 125ms 0.6ms 5.8MB 117ms 3ms ldc2 1.39.0
d 1.d 181ms 0.7ms 7.8MB 170ms 3ms dmd 2.109.1
nim 1.nim timeout 0.0ms 1.3MB 4987ms 0ms nim 2.2.0
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.2.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 322ms 3.0ms 1.9MB 313ms 0ms nim/clang 2.2.0
nim 2.nim 335ms 1.0ms 1.3MB 323ms 0ms nim 2.2.0
d 1.d 359ms 0.1ms 5.8MB 350ms 10ms ldc2 1.39.0
d 1.d 531ms 3.4ms 8.1MB 510ms 20ms dmd 2.109.1
nim 1.nim timeout 0.0ms 1.3MB 4987ms 0ms nim 2.2.0
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.2.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 49ms 1.7ms 1.5MB 40ms 0ms nim/clang 2.2.0
nim 2.nim 51ms 0.5ms 1.3MB 40ms 0ms nim 2.2.0
d 1.d 55ms 0.6ms 5.9MB 50ms 0ms ldc2 1.39.0
d 1.d 81ms 0.9ms 7.9MB 73ms 0ms dmd 2.109.1
nim 1.nim 489ms 3.0ms 1.5MB 480ms 0ms nim/clang 2.2.0
nim 1.nim 490ms 1.1ms 1.3MB 480ms 0ms nim 2.2.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 386ms 2.1ms 4.8MB 373ms 0ms nim/clang 2.2.0
d 1.d 407ms 2.1ms 6.7MB 390ms 0ms ldc2 1.39.0
nim 1.nim 573ms 1.8ms 4.5MB 563ms 0ms nim 2.2.0
d 1.d 2343ms 397ms 9.3MB 2330ms 0ms dmd 2.109.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 19ms 0.2ms 1.9MB 10ms 0ms nim/clang 2.2.0
d 1.d 20ms 0.3ms 3.0MB 10ms 0ms ldc2 1.39.0
nim 1.nim 27ms 0.7ms 1.6MB 20ms 0ms nim 2.2.0
d 1.d 91ms 1.2ms 4.5MB 80ms 0ms dmd 2.109.1

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 556ms 11ms 34.4MB 540ms 0ms nim 2.2.0
nim 1.nim 619ms 4.0ms 35.2MB 600ms 7ms nim/clang 2.2.0
d 1.d 945ms 3.3ms 312.5MB 900ms 43ms ldc2 1.39.0
d 1.d 1727ms 10ms 314.5MB 1840ms 57ms dmd 2.109.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 122ms 2.0ms 9.6MB 107ms 0ms nim 2.2.0
nim 1.nim 131ms 4.4ms 9.9MB 120ms 0ms nim/clang 2.2.0
d 1.d 195ms 0.7ms 312.7MB 153ms 30ms ldc2 1.39.0
d 1.d 338ms 0.9ms 314.8MB 293ms 33ms dmd 2.109.1

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 319ms 1.8ms 1.8MB 310ms 0ms nim 2.2.0
nim 2.nim 339ms 0.8ms 2.0MB 330ms 0ms nim/clang 2.2.0
d 2.d 360ms 1.4ms 2.8MB 347ms 0ms ldc2 1.39.0
d 1.d 360ms 1.1ms 2.9MB 350ms 0ms ldc2 1.39.0
d 1.d 679ms 3.1ms 4.6MB 667ms 0ms dmd 2.109.1
d 2.d 2034ms 49ms 4.6MB 2023ms 0ms dmd 2.109.1

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 34ms 0.6ms 1.8MB 23ms 0ms nim 2.2.0
nim 2.nim 36ms 0.2ms 2.0MB 27ms 0ms nim/clang 2.2.0
d 1.d 39ms 0.2ms 2.9MB 30ms 0ms ldc2 1.39.0
d 2.d 39ms 0.1ms 2.8MB 30ms 0ms ldc2 1.39.0
d 1.d 71ms 0.3ms 4.6MB 60ms 0ms dmd 2.109.1
d 2.d 208ms 1.2ms 4.6MB 200ms 0ms dmd 2.109.1

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 291ms 18ms 41.5MB 273ms 0ms nim 2.2.0
d 1.d 315ms 3.8ms 77.2MB 293ms 0ms dmd 2.109.1
nim 1.nim 317ms 14ms 41.8MB 307ms 0ms nim/clang 2.2.0
d 1.d 320ms 5.7ms 43.7MB 293ms 10ms ldc2 1.39.0
d 2.d 817ms 3.4ms 47.7MB 800ms 3ms ldc2 1.39.0
d 2.d 1161ms 3.7ms 49.3MB 1140ms 3ms dmd 2.109.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 53ms 2.9ms 11.5MB 43ms 0ms nim 2.2.0
nim 1.nim 64ms 4.0ms 11.8MB 57ms 0ms nim/clang 2.2.0
d 1.d 65ms 1.0ms 13.7MB 53ms 0ms ldc2 1.39.0
d 1.d 67ms 1.7ms 24.0MB 57ms 0ms dmd 2.109.1
d 2.d 206ms 0.2ms 15.7MB 193ms 0ms ldc2 1.39.0
d 2.d 291ms 1.2ms 17.6MB 277ms 3ms dmd 2.109.1

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 646ms 60ms 170.7MB 847ms 20ms ldc2 1.39.0
d 3.d 1336ms 1.5ms 173.4MB 1517ms 23ms dmd 2.109.1
nim 1.nim 1629ms 16ms 152.2MB 1600ms 17ms nim/clang 2.2.0
nim 1.nim 1651ms 7.0ms 152.1MB 1620ms 17ms nim 2.2.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 71ms 4.6ms 26.6MB 80ms 3ms ldc2 1.39.0
d 3.d 144ms 4.9ms 28.3MB 153ms 0ms dmd 2.109.1
nim 1.nim 173ms 3.9ms 17.6MB 153ms 7ms nim/clang 2.2.0
nim 1.nim 175ms 2.2ms 16.5MB 163ms 0ms nim 2.2.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 3574ms 1.3ms 1.6MB 3563ms 0ms nim/clang 2.2.0
d 1.d 3581ms 0.9ms 4.0MB 3570ms 0ms ldc2 1.39.0
nim 1.nim 3593ms 7.6ms 1.4MB 3583ms 0ms nim 2.2.0
d 1.d 3647ms 53ms 5.9MB 3633ms 0ms dmd 2.109.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 896ms 0.8ms 1.5MB 887ms 0ms nim/clang 2.2.0
d 1.d 897ms 1.4ms 3.6MB 887ms 0ms ldc2 1.39.0
nim 1.nim 904ms 3.3ms 1.3MB 893ms 0ms nim 2.2.0
d 1.d 909ms 3.9ms 5.3MB 897ms 0ms dmd 2.109.1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 226ms 0.6ms 1.5MB 213ms 0ms nim/clang 2.2.0
d 1.d 227ms 0.3ms 3.3MB 220ms 0ms ldc2 1.39.0
nim 1.nim 228ms 1.3ms 1.3MB 220ms 0ms nim 2.2.0
d 1.d 230ms 0.5ms 4.8MB 220ms 0ms dmd 2.109.1