Programming Language and compiler
Benchmarks

Nim VS C benchmarks

Current benchmark data was generated on Sat Jan 28 2023, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][2 cores] Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz (Model 106)

* -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 1946ms 26ms 35.1MB 1927ms 3ms nim 1.6.10
nim 2.nim 2142ms 32ms 35.5MB 2120ms 7ms nim/clang 1.6.10

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 183ms 0.2ms 5.5MB 170ms 0ms nim 1.6.10
nim 2.nim 195ms 1.2ms 5.7MB 187ms 0ms nim/clang 1.6.10

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim timeout 0.0ms 425.1MB 3367ms 1280ms nim 1.6.10
nim 1.nim timeout 0.0ms 425.7MB 3353ms 1293ms nim/clang 1.6.10

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim timeout 0.0ms 424.7MB 3407ms 1243ms nim 1.6.10
nim 1.nim timeout 0.0ms 428.4MB 3300ms 1347ms nim/clang 1.6.10

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim timeout 0.0ms 3.0MB 4983ms 0ms nim 1.6.10
nim 1.nim timeout 0.0ms 2.9MB 4990ms 0ms nim/clang 1.6.10

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim timeout 0.0ms 2.3MB 4990ms 0ms nim 1.6.10
nim 1.nim timeout 0.0ms 2.3MB 4990ms 0ms nim/clang 1.6.10

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 268ms 0.2ms 1.0MB 260ms 0ms nim 1.6.10
nim 2.nim 335ms 0.2ms 1.3MB 327ms 0ms nim/clang 1.6.10
nim 1.nim 779ms 4.3ms 1.1MB 687ms 73ms nim 1.6.10
nim 1.nim 796ms 1.3ms 1.2MB 687ms 93ms nim/clang 1.6.10

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 32ms 3.0ms 1.1MB 20ms 0ms nim 1.6.10
nim 2.nim 37ms 2.3ms 1.3MB 27ms 0ms nim/clang 1.6.10
nim 1.nim 79ms 0.1ms 1.1MB 57ms 7ms nim 1.6.10
nim 1.nim 83ms 1.7ms 1.3MB 67ms 3ms nim/clang 1.6.10

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1.5ms 0.8ms 1.3MB 0ms 0ms nim/clang 1.6.10
nim 1.nim 1.7ms 0.7ms 1.0MB 0ms 0ms nim 1.6.10
c 1.c 1.7ms 0.3ms 1.4MB 0ms 0ms clang 14.0.0
c 1.c 1.8ms 0.5ms 1.3MB 0ms 0ms gcc 12.2.0
c 1.c 3.4ms 0.1ms 0.0MB 0ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 724ms 4.5ms 94.5MB 323ms 367ms nim 1.6.10
nim 1.nim 726ms 1.1ms 94.5MB 320ms 373ms nim/clang 1.6.10

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 122ms 1.9ms 18.0MB 47ms 53ms nim/clang 1.6.10
nim 1.nim 122ms 1.2ms 17.8MB 53ms 53ms nim 1.6.10

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 147ms 1.5ms 1.2MB 140ms 0ms nim/clang 1.6.10
nim 2.nim 151ms 0.4ms 1.0MB 140ms 0ms nim 1.6.10
nim 1.nim timeout 0.0ms 1.0MB 4990ms 0ms nim 1.6.10
nim 1.nim timeout 0.0ms 1.3MB 4987ms 0ms nim/clang 1.6.10

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 430ms 1.7ms 1.2MB 420ms 0ms nim/clang 1.6.10
nim 2.nim 448ms 1.1ms 1.0MB 437ms 0ms nim 1.6.10
nim 1.nim timeout 0.0ms 1.0MB 4990ms 0ms nim 1.6.10
nim 1.nim timeout 0.0ms 1.3MB 4983ms 0ms nim/clang 1.6.10

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 63ms 0.2ms 1.3MB 50ms 0ms nim/clang 1.6.10
nim 2.nim 65ms 0.7ms 1.1MB 57ms 0ms nim 1.6.10
nim 1.nim 387ms 3.1ms 1.2MB 373ms 0ms nim/clang 1.6.10
nim 1.nim 465ms 40ms 1.0MB 447ms 0ms nim 1.6.10

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 656ms 0.5ms 4.6MB 647ms 0ms nim/clang 1.6.10
nim 1.nim 982ms 1.4ms 4.5MB 970ms 0ms nim 1.6.10

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 30ms 1.0ms 1.3MB 20ms 0ms nim/clang 1.6.10
nim 1.nim 43ms 0.5ms 1.1MB 30ms 0ms nim 1.6.10

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1003ms 8.6ms 34.3MB 983ms 3ms nim 1.6.10
nim 1.nim 1037ms 18ms 35.2MB 1013ms 7ms nim/clang 1.6.10

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 213ms 1.3ms 9.3MB 197ms 0ms nim 1.6.10
nim 1.nim 222ms 1.4ms 9.5MB 210ms 0ms nim/clang 1.6.10

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 8-i.c 315ms 3.9ms 1.3MB 297ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6
c 5.c 320ms 0.3ms 1.3MB 310ms 0ms gcc 12.2.0
c 5.c 329ms 1.2ms 1.0MB 317ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6
c 5.c 331ms 0.2ms 1.4MB 320ms 0ms clang 14.0.0
c 2.c 340ms 2.0ms 1.2MB 327ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6
c 2.c 341ms 0.6ms 1.4MB 330ms 0ms clang 14.0.0
c 8-i.c 365ms 0.8ms 1.3MB 350ms 0ms gcc 12.2.0
c 8-i.c 373ms 2.0ms 1.4MB 360ms 0ms clang 14.0.0
nim 2.nim 381ms 0.4ms 1.3MB 370ms 0ms nim 1.6.10
nim 2.nim 412ms 3.2ms 1.3MB 403ms 0ms nim/clang 1.6.10
c 2.c 624ms 0.7ms 1.3MB 610ms 0ms gcc 12.2.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 8-i.c 33ms 0.2ms 1.3MB 20ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6
c 5.c 34ms 0.3ms 1.3MB 23ms 0ms gcc 12.2.0
c 5.c 35ms 0.2ms 1.4MB 27ms 0ms clang 14.0.0
c 5.c 36ms 0.6ms 1.0MB 27ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6
c 2.c 37ms 1.2ms 1.4MB 30ms 0ms clang 14.0.0
c 2.c 37ms 1.0ms 2.0MB 27ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6
c 8-i.c 38ms 0.2ms 1.3MB 30ms 0ms gcc 12.2.0
c 8-i.c 40ms 0.9ms 1.4MB 30ms 0ms clang 14.0.0
nim 2.nim 40ms 0.0ms 1.4MB 30ms 0ms nim 1.6.10
nim 2.nim 43ms 0.2ms 1.2MB 30ms 0ms nim/clang 1.6.10
c 2.c 65ms 0.4ms 1.3MB 53ms 0ms gcc 12.2.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 574ms 11ms 40.6MB 553ms 0ms nim/clang 1.6.10
c 1.c 578ms 9.5ms 40.8MB 553ms 7ms clang 14.0.0
nim 1.nim 587ms 10ms 40.2MB 570ms 0ms nim 1.6.10
nim 2.nim 587ms 4.0ms 6.4MB 573ms 0ms nim/clang 1.6.10
c 1.c 593ms 23ms 40.2MB 570ms 7ms zigcc 0.11.0-dev.1479+97b1a9bb6
c 1.c 632ms 33ms 41.1MB 600ms 13ms gcc 12.2.0
nim 2.nim 667ms 5.2ms 6.2MB 657ms 0ms nim 1.6.10

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 115ms 1.2ms 11.4MB 103ms 0ms clang 14.0.0
c 1.c 119ms 3.0ms 11.1MB 110ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6
c 1.c 120ms 2.3ms 11.8MB 110ms 0ms gcc 12.2.0
nim 1.nim 128ms 2.1ms 11.3MB 120ms 0ms nim/clang 1.6.10
nim 1.nim 128ms 0.4ms 11.1MB 120ms 0ms nim 1.6.10
nim 2.nim 138ms 0.3ms 3.2MB 130ms 0ms nim/clang 1.6.10
nim 2.nim 157ms 0.3ms 3.1MB 143ms 0ms nim 1.6.10

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim timeout 0.0ms 5.9MB 4987ms 0ms nim 1.6.10
nim 1.nim timeout 0.0ms 6.1MB 4987ms 0ms nim/clang 1.6.10

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim timeout 0.0ms 5.9MB 4987ms 0ms nim 1.6.10
nim 1.nim timeout 0.0ms 6.1MB 4990ms 0ms nim/clang 1.6.10

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 2490ms 1.9ms 168.2MB 2440ms 30ms nim/clang 1.6.10
nim 1.nim 2531ms 3.9ms 167.4MB 2480ms 33ms nim 1.6.10

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 256ms 2.0ms 17.0MB 233ms 3ms nim/clang 1.6.10
nim 1.nim 260ms 2.1ms 16.8MB 247ms 0ms nim 1.6.10

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 4-m.c 1389ms 1.4ms 1.3MB 2723ms 0ms gcc 12.2.0
c 6-im.c 1613ms 2.8ms 1.3MB 3163ms 0ms gcc 12.2.0
c 6-im.c 1684ms 16ms 3.3MB 3300ms 0ms clang 14.0.0
c 4-m.c 1698ms 5.3ms 3.1MB 3337ms 0ms clang 14.0.0
c 5-im.c 1848ms 11ms 1.3MB 3630ms 0ms gcc 12.2.0
c 5-im.c 2152ms 3.8ms 3.2MB 4233ms 0ms clang 14.0.0
c 3-m.c 2200ms 14ms 1.3MB 4330ms 0ms gcc 12.2.0
c 3-m.c 2210ms 8.6ms 3.2MB 4337ms 3ms clang 14.0.0
nim 1.nim 4118ms 2.6ms 1.3MB 4107ms 0ms nim/clang 1.6.10
nim 1.nim 4118ms 1.5ms 1.3MB 4107ms 0ms nim 1.6.10

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 4-m.c 357ms 1.3ms 1.3MB 687ms 0ms gcc 12.2.0
c 6-im.c 416ms 4.5ms 1.3MB 793ms 0ms gcc 12.2.0
c 6-im.c 431ms 2.2ms 3.1MB 820ms 0ms clang 14.0.0
c 4-m.c 436ms 2.6ms 3.1MB 837ms 0ms clang 14.0.0
c 5-im.c 472ms 2.2ms 1.3MB 907ms 0ms gcc 12.2.0
c 3-m.c 560ms 4.0ms 1.3MB 1080ms 0ms gcc 12.2.0
c 3-m.c 564ms 4.7ms 3.2MB 1090ms 0ms clang 14.0.0
c 5-im.c 590ms 76ms 3.3MB 1093ms 0ms clang 14.0.0
nim 1.nim 1031ms 0.1ms 1.2MB 1020ms 0ms nim/clang 1.6.10
nim 1.nim 1033ms 3.1ms 1.3MB 1020ms 0ms nim 1.6.10

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 4-m.c 102ms 3.6ms 1.3MB 177ms 0ms gcc 12.2.0
c 6-im.c 112ms 2.5ms 1.3MB 200ms 0ms gcc 12.2.0
c 6-im.c 115ms 0.2ms 3.2MB 203ms 0ms clang 14.0.0
c 4-m.c 119ms 2.3ms 3.5MB 210ms 0ms clang 14.0.0
c 5-im.c 127ms 0.5ms 1.3MB 230ms 0ms gcc 12.2.0
c 5-im.c 147ms 2.5ms 3.2MB 263ms 3ms clang 14.0.0
c 3-m.c 149ms 1.3ms 3.3MB 273ms 0ms gcc 12.2.0
c 3-m.c 150ms 1.7ms 3.2MB 273ms 0ms clang 14.0.0
nim 1.nim 260ms 0.1ms 1.3MB 250ms 0ms nim 1.6.10
nim 1.nim 261ms 0.1ms 1.3MB 250ms 0ms nim/clang 1.6.10