Nim VS C benchmarks

Current benchmark data was generated on Mon Oct 03 2022, 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 3377ms 55ms 34.4MB 3353ms 7ms nim/clang 1.6.8
nim 2.nim 3539ms 69ms 35.1MB 3510ms 13ms nim 1.6.8

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 319ms 3.0ms 5.7MB 307ms 0ms nim/clang 1.6.8
nim 2.nim 330ms 0.7ms 5.4MB 317ms 0ms nim 1.6.8

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 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 257ms 0.4ms 0.7MB 250ms 0ms nim 1.6.8
nim 2.nim 339ms 2.7ms 1.0MB 327ms 0ms nim/clang 1.6.8
nim 1.nim 786ms 1.8ms 0.6MB 683ms 80ms nim 1.6.8
nim 1.nim 809ms 2.8ms 1.0MB 720ms 70ms nim/clang 1.6.8

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 29ms 0.4ms 0.7MB 20ms 0ms nim 1.6.8
nim 2.nim 37ms 0.6ms 0.9MB 30ms 0ms nim/clang 1.6.8
nim 1.nim 83ms 0.4ms 1.0MB 67ms 3ms nim/clang 1.6.8
nim 1.nim 84ms 4.0ms 0.7MB 67ms 3ms nim 1.6.8

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1.6ms 0.4ms 0.7MB 0ms 0ms nim 1.6.8
nim 1.nim 1.9ms 0.7ms 1.0MB 0ms 0ms nim/clang 1.6.8
c 1.c 1.9ms 0.7ms 1.0MB 0ms 0ms gcc 12.2.0
c 1.c 2.4ms 0.7ms 0.6MB 0ms 0ms zigcc 0.10.0-dev.4213+91b05ad47
c 1.c 2.8ms 0.9ms 1.1MB 0ms 0ms clang 11.0.0

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 731ms 2.3ms 94.2MB 330ms 367ms nim 1.6.8
nim 1.nim 735ms 1.5ms 94.3MB 297ms 407ms nim/clang 1.6.8

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 123ms 0.9ms 18.3MB 53ms 57ms nim 1.6.8
nim 1.nim 125ms 0.9ms 18.7MB 40ms 67ms nim/clang 1.6.8

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 147ms 0.8ms 1.0MB 140ms 0ms nim/clang 1.6.8
nim 2.nim 158ms 1.3ms 0.7MB 150ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 434ms 0.5ms 0.9MB 420ms 0ms nim/clang 1.6.8
nim 2.nim 466ms 0.8ms 0.7MB 457ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 65ms 0.6ms 1.0MB 53ms 0ms nim/clang 1.6.8
nim 2.nim 68ms 0.9ms 0.6MB 60ms 0ms nim 1.6.8
nim 1.nim 419ms 6.5ms 1.0MB 407ms 0ms nim/clang 1.6.8
nim 1.nim 448ms 0.6ms 0.7MB 440ms 0ms nim 1.6.8

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 575ms 0.8ms 4.9MB 563ms 0ms nim/clang 1.6.8
nim 1.nim 996ms 0.9ms 4.5MB 983ms 0ms nim 1.6.8

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 27ms 0.3ms 2.0MB 20ms 0ms nim/clang 1.6.8
nim 1.nim 44ms 0.9ms 0.7MB 33ms 0ms nim 1.6.8

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1605ms 45ms 34.8MB 1583ms 3ms nim/clang 1.6.8
nim 1.nim 1659ms 3.2ms 35.1MB 1637ms 3ms nim 1.6.8

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 340ms 1.1ms 9.9MB 327ms 0ms nim/clang 1.6.8
nim 1.nim 359ms 2.9ms 9.3MB 343ms 0ms nim 1.6.8

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 8-i.c 308ms 0.4ms 0.6MB 300ms 0ms zigcc 0.10.0-dev.4213+91b05ad47
c 5.c 320ms 0.4ms 1.0MB 310ms 0ms gcc 12.2.0
c 5.c 330ms 2.3ms 0.6MB 320ms 0ms zigcc 0.10.0-dev.4213+91b05ad47
c 2.c 337ms 0.0ms 0.6MB 330ms 0ms zigcc 0.10.0-dev.4213+91b05ad47
c 8-i.c 348ms 3.3ms 1.1MB 333ms 0ms clang 11.0.0
c 8-i.c 365ms 0.7ms 0.9MB 357ms 0ms gcc 12.2.0
c 5.c 370ms 1.6ms 1.1MB 360ms 0ms clang 11.0.0
nim 2.nim 405ms 1.0ms 1.0MB 393ms 0ms nim/clang 1.6.8
c 2.c 408ms 0.6ms 1.1MB 400ms 0ms clang 11.0.0
nim 2.nim 428ms 0.3ms 1.0MB 413ms 0ms nim 1.6.8
c 2.c 625ms 0.5ms 0.9MB 613ms 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 0.4ms 0.6MB 20ms 0ms zigcc 0.10.0-dev.4213+91b05ad47
c 5.c 35ms 0.4ms 1.0MB 30ms 0ms gcc 12.2.0
c 5.c 35ms 0.6ms 0.6MB 23ms 0ms zigcc 0.10.0-dev.4213+91b05ad47
c 2.c 36ms 0.5ms 0.6MB 30ms 0ms zigcc 0.10.0-dev.4213+91b05ad47
c 8-i.c 39ms 1.5ms 1.1MB 27ms 0ms clang 11.0.0
c 8-i.c 39ms 0.6ms 0.9MB 30ms 0ms gcc 12.2.0
c 5.c 41ms 2.4ms 1.1MB 30ms 0ms clang 11.0.0
c 2.c 43ms 0.3ms 1.1MB 33ms 0ms clang 11.0.0
nim 2.nim 46ms 0.7ms 1.0MB 37ms 0ms nim 1.6.8
nim 2.nim 47ms 4.8ms 1.0MB 33ms 0ms nim/clang 1.6.8
c 2.c 65ms 0.5ms 1.0MB 53ms 0ms gcc 12.2.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 588ms 1.8ms 6.4MB 577ms 0ms nim/clang 1.6.8
nim 2.nim 642ms 0.9ms 6.0MB 630ms 0ms nim 1.6.8
c 1.c 650ms 12ms 41.1MB 620ms 17ms gcc 12.2.0
c 1.c 662ms 5.3ms 40.2MB 633ms 13ms zigcc 0.10.0-dev.4213+91b05ad47
nim 1.nim 665ms 15ms 41.1MB 643ms 0ms nim 1.6.8
nim 1.nim 734ms 6.6ms 40.6MB 713ms 3ms nim/clang 1.6.8
c 1.c 736ms 9.4ms 41.0MB 697ms 13ms clang 11.0.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 119ms 3.3ms 11.6MB 107ms 0ms clang 11.0.0
c 1.c 119ms 0.8ms 10.9MB 103ms 0ms zigcc 0.10.0-dev.4213+91b05ad47
c 1.c 122ms 5.9ms 11.7MB 110ms 0ms gcc 12.2.0
nim 1.nim 122ms 0.5ms 11.1MB 110ms 0ms nim 1.6.8
nim 1.nim 128ms 0.3ms 11.4MB 117ms 0ms nim/clang 1.6.8
nim 2.nim 140ms 0.6ms 3.2MB 130ms 0ms nim/clang 1.6.8
nim 2.nim 153ms 1.0ms 2.9MB 140ms 0ms nim 1.6.8

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 2569ms 0.7ms 167.2MB 2520ms 30ms nim/clang 1.6.8
nim 1.nim 2574ms 3.7ms 167.2MB 2527ms 33ms nim 1.6.8

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 265ms 1.4ms 17.0MB 250ms 3ms nim/clang 1.6.8
nim 1.nim 266ms 2.0ms 16.7MB 250ms 3ms nim 1.6.8

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 4-m.c 1429ms 39ms 1.0MB 2740ms 0ms gcc 12.2.0
c 6-im.c 1589ms 17ms 1.0MB 3113ms 3ms gcc 12.2.0
c 6-im.c 1731ms 10.0ms 3.2MB 3390ms 0ms clang 11.0.0
c 4-m.c 1751ms 13ms 2.9MB 3413ms 7ms clang 11.0.0
c 5-im.c 1849ms 7.8ms 1.0MB 3633ms 0ms gcc 12.2.0
c 5-im.c 2037ms 18ms 3.2MB 3997ms 0ms clang 11.0.0
c 3-m.c 2203ms 0.8ms 0.9MB 4330ms 0ms gcc 12.2.0
c 3-m.c 2211ms 7.3ms 2.9MB 4340ms 3ms clang 11.0.0
nim 1.nim 4121ms 3.1ms 1.9MB 4107ms 0ms nim 1.6.8
nim 1.nim 4122ms 2.2ms 1.8MB 4107ms 0ms nim/clang 1.6.8

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 4-m.c 361ms 2.5ms 1.0MB 687ms 0ms gcc 12.2.0
c 6-im.c 405ms 0.6ms 0.9MB 777ms 0ms gcc 12.2.0
c 6-im.c 446ms 3.1ms 3.1MB 853ms 0ms clang 11.0.0
c 4-m.c 446ms 2.0ms 3.0MB 850ms 0ms clang 11.0.0
c 5-im.c 471ms 0.6ms 1.0MB 910ms 0ms gcc 12.2.0
c 5-im.c 520ms 2.2ms 3.1MB 1000ms 0ms clang 11.0.0
c 3-m.c 569ms 14ms 1.0MB 1090ms 0ms gcc 12.2.0
c 3-m.c 574ms 11ms 3.0MB 1093ms 0ms clang 11.0.0
nim 1.nim 1032ms 0.1ms 1.0MB 1020ms 0ms nim/clang 1.6.8
nim 1.nim 1032ms 0.5ms 0.9MB 1020ms 0ms nim 1.6.8

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 4-m.c 97ms 0.8ms 1.0MB 170ms 0ms gcc 12.2.0
c 6-im.c 110ms 2.4ms 1.0MB 193ms 0ms gcc 12.2.0
c 6-im.c 118ms 0.7ms 3.1MB 210ms 0ms clang 11.0.0
c 4-m.c 120ms 0.8ms 3.1MB 210ms 0ms clang 11.0.0
c 5-im.c 129ms 2.7ms 2.9MB 230ms 0ms gcc 12.2.0
c 5-im.c 143ms 5.6ms 3.1MB 253ms 0ms clang 11.0.0
c 3-m.c 150ms 1.0ms 1.0MB 280ms 0ms gcc 12.2.0
c 3-m.c 152ms 1.8ms 2.9MB 270ms 0ms clang 11.0.0
nim 1.nim 260ms 0.9ms 1.0MB 250ms 0ms nim 1.6.8
nim 1.nim 261ms 1.0ms 1.0MB 250ms 0ms nim/clang 1.6.8