Programming Language and compiler
Benchmarks

C VS Ruby benchmarks

Current benchmark data was generated on Mon Apr 14 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.)

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 1.1ms 0.1ms 1.3MB 0ms 0ms zigcc 0.14.0
c 1.c 1.2ms 0.1ms 2.1MB 0ms 0ms clang 14.0.0-1ubuntu1.1
c 1.c 1.2ms 0.1ms 2.1MB 0ms 0ms gcc 14.2.0
ruby 1.rb 35ms 0.5ms 141.8MB 14ms 24ms truffleruby 24.2.0
ruby 1.rb 51ms 1.1ms 12.9MB 38ms 0ms ruby 3.4.2
ruby 1.rb 53ms 1.6ms 13.1MB 38ms 2ms ruby/yjit 3.4.2

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1-m.c 182ms 2.9ms 24.5MB 420ms 7ms gcc 14.2.0
c 1-m.c 291ms 5.0ms 25.9MB 980ms 17ms clang 14.0.0-1ubuntu1.1

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1-m.c 28ms 2.9ms 12.1MB 63ms 0ms gcc 14.2.0
c 1-m.c 35ms 0.6ms 15.1MB 100ms 0ms clang 14.0.0-1ubuntu1.1

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1-mffi.c 230ms 12ms 7.4MB 857ms 17ms clang 14.0.0-1ubuntu1.1
c 1-mffi.c 265ms 1.9ms 6.7MB 807ms 0ms gcc 14.2.0
c 1-ffi.c 330ms 1.2ms 5.9MB 320ms 0ms zigcc 0.14.0
c 1-mffi.c 330ms 0.9ms 5.9MB 320ms 0ms zigcc 0.14.0
c 1-ffi.c 452ms 1.5ms 6.4MB 440ms 0ms clang 14.0.0-1ubuntu1.1
c 1-ffi.c 542ms 1.6ms 6.7MB 530ms 0ms gcc 14.2.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1-mffi.c 15ms 0.5ms 4.8MB 30ms 0ms clang 14.0.0-1ubuntu1.1
c 1-ffi.c 16ms 0.1ms 3.0MB 10ms 0ms zigcc 0.14.0
c 1-mffi.c 16ms 0.1ms 3.0MB 10ms 0ms zigcc 0.14.0
c 1-mffi.c 17ms 1.6ms 3.6MB 43ms 0ms gcc 14.2.0
c 1-ffi.c 22ms 0.3ms 3.6MB 10ms 0ms clang 14.0.0-1ubuntu1.1
c 1-ffi.c 26ms 0.9ms 3.6MB 20ms 0ms gcc 14.2.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 8-i.c 267ms 0.5ms 1.5MB 260ms 0ms zigcc 0.14.0
c 8-i.c 302ms 1.0ms 2.1MB 290ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 311ms 0.4ms 2.3MB 300ms 0ms gcc 14.2.0
c 5.c 315ms 0.7ms 2.3MB 303ms 0ms gcc 14.2.0
c 2.c 315ms 1.4ms 1.5MB 310ms 0ms zigcc 0.14.0
c 5.c 315ms 0.9ms 1.5MB 307ms 0ms zigcc 0.14.0
c 5.c 318ms 3.4ms 2.1MB 310ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 320ms 0.6ms 2.1MB 310ms 0ms clang 14.0.0-1ubuntu1.1
c 8-i.c 334ms 0.4ms 2.3MB 323ms 0ms gcc 14.2.0
ruby 2.rb 825ms 4.5ms 309.8MB 1053ms 117ms truffleruby 24.2.0
ruby 2.rb timeout 0.0ms 12.9MB 4987ms 0ms ruby 3.4.2
ruby 2.rb timeout 0.0ms 13.5MB 4983ms 3ms ruby/yjit 3.4.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 8-i.c 29ms 0.2ms 1.5MB 20ms 0ms zigcc 0.14.0
c 8-i.c 33ms 0.4ms 2.1MB 23ms 0ms clang 14.0.0-1ubuntu1.1
c 5.c 34ms 0.3ms 2.3MB 30ms 0ms gcc 14.2.0
c 5.c 34ms 0.5ms 1.5MB 27ms 0ms zigcc 0.14.0
c 2.c 34ms 0.6ms 2.3MB 27ms 0ms gcc 14.2.0
c 2.c 34ms 0.2ms 1.5MB 30ms 0ms zigcc 0.14.0
c 2.c 35ms 0.8ms 2.1MB 30ms 0ms clang 14.0.0-1ubuntu1.1
c 5.c 35ms 0.7ms 2.1MB 30ms 0ms clang 14.0.0-1ubuntu1.1
c 8-i.c 36ms 0.2ms 2.3MB 30ms 0ms gcc 14.2.0
ruby 2-m.rb 308ms 6.2ms 310.0MB 540ms 117ms truffleruby 24.2.0
ruby 2.rb 1062ms 3.2ms 13.5MB 1047ms 3ms ruby/yjit 3.4.2
ruby 2.rb 2806ms 75ms 12.9MB 2787ms 3ms ruby 3.4.2

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 279ms 1.8ms 40.9MB 263ms 0ms clang 14.0.0-1ubuntu1.1
c 1.c 281ms 2.9ms 40.2MB 263ms 0ms zigcc 0.14.0
c 1.c 301ms 7.8ms 41.0MB 283ms 0ms gcc 14.2.0
ruby 1.rb timeout 0.0ms 325.4MB 4860ms 130ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 327.0MB 4853ms 137ms ruby/yjit 3.4.2
ruby 1.rb timeout 0.0ms 703.0MB 5090ms 140ms truffleruby 24.2.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 52ms 2.6ms 11.8MB 40ms 0ms gcc 14.2.0
c 1.c 53ms 0.9ms 11.5MB 40ms 0ms clang 14.0.0-1ubuntu1.1
c 1.c 59ms 3.0ms 11.0MB 50ms 0ms zigcc 0.14.0
ruby 1.rb 1725ms 19ms 476.7MB 2387ms 160ms truffleruby 24.2.0
ruby 1.rb 3412ms 46ms 131.8MB 3323ms 73ms ruby/yjit 3.4.2
ruby 1.rb 4494ms 36ms 131.1MB 4403ms 77ms ruby 3.4.2

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 6-im.c 963ms 12ms 2.0MB 3780ms 0ms gcc 14.2.0
c 4-m.c 965ms 1.5ms 2.0MB 3797ms 0ms gcc 14.2.0
c 6-im.c 1008ms 5.5ms 3.3MB 3950ms 3ms clang 14.0.0-1ubuntu1.1
c 5-im.c 1088ms 1.2ms 2.0MB 4290ms 0ms gcc 14.2.0
c 4-m.c 1122ms 3.5ms 3.3MB 4407ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 1342ms 23ms 3.3MB 5257ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 1834ms 11ms 3.1MB 7227ms 7ms clang 14.0.0-1ubuntu1.1
c 3-m.c 1969ms 3.6ms 2.0MB 7777ms 0ms gcc 14.2.0
ruby 4.rb timeout 0.0ms 13.0MB 4983ms 3ms ruby 3.4.2
ruby 4.rb timeout 0.0ms 13.5MB 4983ms 7ms ruby/yjit 3.4.2
ruby 4.rb timeout 0.0ms 434.6MB 5167ms 233ms truffleruby 24.2.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 6-im.c 247ms 1.3ms 2.0MB 947ms 0ms gcc 14.2.0
c 4-m.c 255ms 2.8ms 2.0MB 973ms 0ms gcc 14.2.0
c 6-im.c 269ms 18ms 3.3MB 1007ms 3ms clang 14.0.0-1ubuntu1.1
c 5-im.c 284ms 3.3ms 2.0MB 1090ms 0ms gcc 14.2.0
c 4-m.c 289ms 1.8ms 3.1MB 1103ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 341ms 1.0ms 3.3MB 1310ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 467ms 6.6ms 3.3MB 1810ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 497ms 0.7ms 2.0MB 1937ms 0ms gcc 14.2.0
ruby 4.rb 4868ms 23ms 439.6MB 5153ms 217ms truffleruby 24.2.0
ruby 4.rb timeout 0.0ms 13.0MB 4987ms 3ms ruby 3.4.2
ruby 4.rb timeout 0.0ms 13.5MB 4980ms 3ms ruby/yjit 3.4.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 6-im.c 69ms 0.2ms 2.0MB 250ms 0ms gcc 14.2.0
c 4-m.c 71ms 0.4ms 2.0MB 253ms 0ms gcc 14.2.0
c 6-im.c 71ms 1.3ms 3.3MB 250ms 0ms clang 14.0.0-1ubuntu1.1
c 4-m.c 78ms 0.9ms 3.1MB 280ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 79ms 1.7ms 2.0MB 283ms 0ms gcc 14.2.0
c 5-im.c 91ms 0.7ms 3.0MB 330ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 122ms 1.0ms 3.3MB 450ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 131ms 0.8ms 2.0MB 490ms 0ms gcc 14.2.0
ruby 4.rb 1435ms 5.1ms 375.6MB 1770ms 137ms truffleruby 24.2.0
ruby 4.rb timeout 0.0ms 13.0MB 4983ms 3ms ruby 3.4.2
ruby 4.rb timeout 0.0ms 13.8MB 4980ms 3ms ruby/yjit 3.4.2