Programming Language and compiler
Benchmarks

Ruby VS C benchmarks

Current benchmark data was generated on Sun Jul 13 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.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 4770ms 133ms 110.1MB 4677ms 77ms ruby/yjit 3.4.4
ruby 1.rb timeout 0.0ms 70.5MB 4950ms 33ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 796.7MB 6620ms 720ms truffleruby 24.2.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 498ms 0.9ms 20.3MB 473ms 10ms ruby/yjit 3.4.4
ruby 1-m.rb 503ms 8.2ms 407.1MB 980ms 150ms truffleruby 24.2.1
ruby 1.rb 947ms 3.2ms 19.5MB 923ms 13ms ruby 3.4.4

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 1449ms 20ms 63.8MB 1373ms 57ms ruby/yjit 3.4.4
ruby 1.rb 1913ms 42ms 63.0MB 1837ms 60ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 364.7MB 4603ms 1530ms truffleruby 24.2.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 150ms 1.5ms 25.6MB 120ms 20ms ruby/yjit 3.4.4
ruby 1.rb 185ms 1.9ms 25.0MB 157ms 13ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 346.5MB 4577ms 1460ms truffleruby 24.2.1

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 6.rb 2046ms 3.0ms 23.0MB 2023ms 10ms ruby/yjit 3.4.4
ruby 6-m.rb 2107ms 209ms 406.5MB 5403ms 323ms truffleruby 24.2.1
ruby 6.rb 3692ms 15ms 22.4MB 3673ms 10ms ruby 3.4.4

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 6.rb 259ms 4.3ms 15.2MB 237ms 10ms ruby/yjit 3.4.4
ruby 6.rb 415ms 1.8ms 14.4MB 397ms 3ms ruby 3.4.4
ruby 6-m.rb 843ms 29ms 380.9MB 2103ms 163ms truffleruby 24.2.1

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 1.0ms 0.0ms 1.3MB 0ms 0ms zigcc 0.14.1
c 1.c 1.2ms 0.1ms 2.1MB 0ms 0ms clang 14.0.0-1ubuntu1.1
c 1.c 1.2ms 0.0ms 2.1MB 0ms 0ms gcc 15.1.0
ruby 1.rb 34ms 0.4ms 141.1MB 12ms 24ms truffleruby 24.2.1
ruby 1.rb 51ms 1.1ms 12.8MB 38ms 0ms ruby 3.4.4
ruby 1.rb 53ms 0.4ms 12.9MB 38ms 4ms ruby/yjit 3.4.4

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 247ms 0.5ms 27.1MB 210ms 20ms ruby 3.4.4
ruby 1.rb 250ms 4.8ms 30.1MB 220ms 17ms ruby/yjit 3.4.4
ruby 1-m.rb 4251ms 31ms 506.4MB 11203ms 337ms truffleruby 24.2.1

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 2101ms 28ms 135.5MB 2013ms 73ms ruby/yjit 3.4.4
ruby 1.rb 2146ms 112ms 132.6MB 2067ms 67ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 499.9MB 13243ms 367ms truffleruby 24.2.1

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 342ms 3.2ms 13.5MB 327ms 3ms ruby/yjit 3.4.4
ruby 1.rb 529ms 4.4ms 12.9MB 510ms 0ms ruby 3.4.4
ruby 1-m.rb 686ms 7.4ms 371.8MB 1270ms 140ms truffleruby 24.2.1

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 910ms 1.6ms 13.5MB 890ms 10ms ruby/yjit 3.4.4
ruby 1-m.rb 1261ms 52ms 406.7MB 1777ms 167ms truffleruby 24.2.1
ruby 1.rb 1485ms 8.7ms 12.9MB 1470ms 3ms ruby 3.4.4

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 198ms 2.8ms 13.5MB 187ms 0ms ruby/yjit 3.4.4
ruby 1.rb 289ms 1.2ms 12.8MB 273ms 7ms ruby 3.4.4
ruby 1-m.rb 525ms 17ms 354.7MB 1033ms 137ms truffleruby 24.2.1

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1-m.rb 3861ms 33ms 612.1MB 9853ms 350ms truffleruby 24.2.1
ruby 1.rb timeout 0.0ms 93.5MB 4947ms 40ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 97.4MB 4940ms 50ms ruby/yjit 3.4.4

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1-m.rb 2066ms 110ms 488.8MB 5300ms 230ms truffleruby 24.2.1
ruby 1.rb 3236ms 25ms 38.3MB 3197ms 23ms ruby/yjit 3.4.4
ruby 1.rb 4321ms 12ms 37.6MB 4287ms 23ms ruby 3.4.4

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 8-i.c 267ms 0.8ms 1.5MB 260ms 0ms zigcc 0.14.1
c 8-i.c 301ms 1.4ms 2.1MB 290ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 309ms 1.5ms 2.3MB 300ms 0ms gcc 15.1.0
c 5.c 313ms 1.4ms 2.3MB 303ms 0ms gcc 15.1.0
c 2.c 313ms 1.7ms 1.5MB 307ms 0ms zigcc 0.14.1
c 5.c 316ms 0.6ms 2.1MB 310ms 0ms clang 14.0.0-1ubuntu1.1
c 5.c 316ms 2.1ms 1.5MB 310ms 0ms zigcc 0.14.1
c 2.c 319ms 2.0ms 2.1MB 310ms 0ms clang 14.0.0-1ubuntu1.1
c 8-i.c 336ms 1.3ms 2.3MB 330ms 0ms gcc 15.1.0
ruby 2.rb 836ms 14ms 325.0MB 1103ms 117ms truffleruby 24.2.1
ruby 2.rb timeout 0.0ms 12.8MB 4983ms 3ms ruby 3.4.4
ruby 2.rb timeout 0.0ms 13.5MB 4977ms 10ms ruby/yjit 3.4.4

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 8-i.c 29ms 0.3ms 1.5MB 20ms 0ms zigcc 0.14.1
c 8-i.c 32ms 0.5ms 2.1MB 20ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 33ms 0.4ms 1.5MB 30ms 0ms zigcc 0.14.1
c 5.c 33ms 0.6ms 2.3MB 30ms 0ms gcc 15.1.0
c 2.c 34ms 0.7ms 2.3MB 30ms 0ms gcc 15.1.0
c 5.c 34ms 0.4ms 2.1MB 30ms 0ms clang 14.0.0-1ubuntu1.1
c 5.c 35ms 0.6ms 1.5MB 30ms 0ms zigcc 0.14.1
c 8-i.c 36ms 0.5ms 2.3MB 30ms 0ms gcc 15.1.0
c 2.c 36ms 3.1ms 2.1MB 30ms 0ms clang 14.0.0-1ubuntu1.1
ruby 2-m.rb 309ms 6.6ms 309.6MB 560ms 103ms truffleruby 24.2.1
ruby 2.rb 1028ms 6.1ms 13.5MB 1010ms 3ms ruby/yjit 3.4.4
ruby 2.rb 2980ms 14ms 12.8MB 2963ms 7ms ruby 3.4.4

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 267ms 3.7ms 41.0MB 253ms 0ms clang 14.0.0-1ubuntu1.1
c 1.c 277ms 11ms 40.9MB 257ms 0ms gcc 15.1.0
c 1.c 282ms 4.5ms 40.3MB 267ms 0ms zigcc 0.14.1
ruby 1.rb timeout 0.0ms 325.3MB 4850ms 133ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 327.0MB 4847ms 140ms ruby/yjit 3.4.4
ruby 1.rb timeout 0.0ms 731.6MB 5070ms 153ms truffleruby 24.2.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 56ms 2.7ms 11.8MB 43ms 0ms gcc 15.1.0
c 1.c 59ms 2.7ms 11.7MB 47ms 0ms clang 14.0.0-1ubuntu1.1
c 1.c 64ms 1.3ms 11.0MB 50ms 0ms zigcc 0.14.1
ruby 1-m.rb 1697ms 10ms 473.8MB 2493ms 170ms truffleruby 24.2.1
ruby 1.rb 3416ms 80ms 131.8MB 3323ms 83ms ruby/yjit 3.4.4
ruby 1.rb 4472ms 16ms 131.0MB 4383ms 73ms ruby 3.4.4

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb timeout 0.0ms 130.2MB 4863ms 123ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 131.0MB 4833ms 150ms ruby/yjit 3.4.4
ruby 1.rb timeout 0.0ms 450.5MB 13320ms 430ms truffleruby 24.2.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1-m.rb 1668ms 200ms 395.7MB 4403ms 210ms truffleruby 24.2.1
ruby 1.rb 1766ms 80ms 130.9MB 1657ms 93ms ruby/yjit 3.4.4
ruby 1.rb 1816ms 25ms 130.3MB 1690ms 113ms ruby 3.4.4

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 3-m.c 735ms 1.2ms 2.0MB 2887ms 0ms gcc 15.1.0
c 6-im.c 969ms 27ms 2.0MB 3773ms 0ms gcc 15.1.0
c 4-m.c 996ms 15ms 2.0MB 3907ms 0ms gcc 15.1.0
c 6-im.c 1002ms 1.1ms 3.1MB 3943ms 0ms clang 14.0.0-1ubuntu1.1
c 4-m.c 1119ms 3.6ms 3.4MB 4407ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 1141ms 0.4ms 2.0MB 4510ms 0ms gcc 15.1.0
c 5-im.c 1326ms 1.0ms 3.1MB 5233ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 1841ms 29ms 3.3MB 7233ms 7ms clang 14.0.0-1ubuntu1.1
ruby 4.rb timeout 0.0ms 12.9MB 4983ms 7ms ruby 3.4.4
ruby 4.rb timeout 0.0ms 13.5MB 4980ms 0ms ruby/yjit 3.4.4
ruby 4.rb timeout 0.0ms 436.6MB 5167ms 240ms truffleruby 24.2.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 3-m.c 194ms 0.5ms 2.0MB 740ms 0ms gcc 15.1.0
c 6-im.c 245ms 0.6ms 2.0MB 947ms 0ms gcc 15.1.0
c 4-m.c 258ms 0.9ms 2.1MB 990ms 0ms gcc 15.1.0
c 6-im.c 260ms 1.0ms 3.3MB 990ms 0ms clang 14.0.0-1ubuntu1.1
c 4-m.c 287ms 0.9ms 3.3MB 1103ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 298ms 7.7ms 2.0MB 1147ms 0ms gcc 15.1.0
c 5-im.c 341ms 2.4ms 3.3MB 1313ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 468ms 9.9ms 3.3MB 1807ms 0ms clang 14.0.0-1ubuntu1.1
ruby 4.rb 4848ms 12ms 433.6MB 5140ms 203ms truffleruby 24.2.1
ruby 4.rb timeout 0.0ms 12.8MB 4980ms 0ms ruby 3.4.4
ruby 4.rb timeout 0.0ms 13.5MB 4983ms 3ms ruby/yjit 3.4.4

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 3-m.c 55ms 1.3ms 2.3MB 197ms 0ms gcc 15.1.0
c 4-m.c 72ms 0.1ms 2.0MB 260ms 0ms gcc 15.1.0
c 6-im.c 73ms 8.3ms 2.0MB 250ms 0ms gcc 15.1.0
c 6-im.c 75ms 7.4ms 3.3MB 257ms 0ms clang 14.0.0-1ubuntu1.1
c 4-m.c 78ms 0.6ms 3.3MB 280ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 81ms 1.3ms 2.0MB 293ms 0ms gcc 15.1.0
c 5-im.c 95ms 6.8ms 3.1MB 340ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 124ms 3.1ms 3.3MB 450ms 0ms clang 14.0.0-1ubuntu1.1
ruby 4.rb 1458ms 6.2ms 377.4MB 1793ms 157ms truffleruby 24.2.1
ruby 4.rb timeout 0.0ms 12.9MB 4980ms 3ms ruby 3.4.4
ruby 4.rb timeout 0.0ms 13.6MB 4980ms 3ms ruby/yjit 3.4.4