Programming Language and compiler
Benchmarks

Ruby VS Javascript benchmarks

Current benchmark data was generated on Tue Jul 01 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
javascript 1-m.js 998ms 4.7ms 166.9MB 1570ms 240ms bun 1.2.17
javascript 1.js 1086ms 11ms 469.4MB 990ms 243ms node 24.3.0
ruby 1-m.rb 4407ms 191ms 804.1MB 6390ms 450ms truffleruby 24.2.1
ruby 1.rb 4955ms 35ms 109.4MB 4853ms 87ms ruby/yjit 3.4.4
ruby 1.rb timeout 0.0ms 70.5MB 4940ms 40ms ruby 3.4.4

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 99ms 2.6ms 77.4MB 80ms 23ms bun 1.2.17
javascript 1.js 131ms 1.8ms 80.9MB 130ms 33ms node 24.3.0
ruby 1.rb 505ms 6.5ms 20.3MB 480ms 10ms ruby/yjit 3.4.4
ruby 1-m.rb 570ms 55ms 424.9MB 1133ms 167ms truffleruby 24.2.1
ruby 1.rb 967ms 21ms 19.5MB 943ms 10ms 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 1446ms 22ms 63.8MB 1363ms 67ms ruby/yjit 3.4.4
javascript 1.js 1757ms 89ms 189.8MB 1723ms 107ms node 24.3.0
ruby 1.rb 1861ms 20ms 63.0MB 1787ms 63ms ruby 3.4.4
javascript 1.js 2594ms 93ms 107.1MB 2637ms 73ms bun 1.2.17
ruby 1.rb timeout 0.0ms 327.3MB 4810ms 1417ms truffleruby 24.2.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 155ms 1.3ms 25.6MB 127ms 17ms ruby/yjit 3.4.4
javascript 1.js 164ms 4.1ms 75.2MB 150ms 20ms node 24.3.0
ruby 1.rb 184ms 1.1ms 25.0MB 157ms 17ms ruby 3.4.4
javascript 1.js 206ms 4.1ms 89.2MB 253ms 33ms bun 1.2.17
ruby 1.rb timeout 0.0ms 351.7MB 4637ms 1527ms truffleruby 24.2.1

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 6.rb 2079ms 63ms 23.0MB 2053ms 10ms ruby/yjit 3.4.4
ruby 6-m.rb 2218ms 75ms 408.9MB 5653ms 337ms truffleruby 24.2.1
ruby 6.rb 3700ms 18ms 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 257ms 1.5ms 15.2MB 240ms 3ms ruby/yjit 3.4.4
ruby 6.rb 420ms 1.2ms 14.4MB 403ms 7ms ruby 3.4.4
ruby 6-m.rb 848ms 18ms 388.9MB 2133ms 180ms truffleruby 24.2.1

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 13ms 0.5ms 31.3MB 0ms 0ms bun 1.2.17
javascript 1.js 32ms 0.5ms 50.6MB 18ms 6ms node 24.3.0
ruby 1.rb 35ms 1.1ms 141.3MB 16ms 24ms truffleruby 24.2.1
ruby 1.rb 52ms 0.9ms 12.8MB 40ms 0ms ruby 3.4.4
ruby 1.rb 52ms 1.2ms 12.9MB 40ms 2ms ruby/yjit 3.4.4

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 67ms 4.2ms 62.6MB 40ms 13ms bun 1.2.17
javascript 1.js 105ms 2.0ms 75.5MB 87ms 23ms node 24.3.0
ruby 1.rb 259ms 6.8ms 28.8MB 233ms 10ms ruby 3.4.4
ruby 1.rb 260ms 1.6ms 30.1MB 230ms 17ms ruby/yjit 3.4.4
ruby 1-m.rb 4473ms 273ms 553.2MB 11820ms 333ms truffleruby 24.2.1

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 354ms 14ms 200.8MB 310ms 83ms bun 1.2.17
javascript 1.js 572ms 2.1ms 254.7MB 597ms 113ms node 24.3.0
ruby 1.rb 2100ms 16ms 135.4MB 2017ms 73ms ruby 3.4.4
ruby 1.rb 2102ms 15ms 135.2MB 2013ms 73ms ruby/yjit 3.4.4
ruby 1.rb timeout 0.0ms 507.3MB 13217ms 343ms truffleruby 24.2.1

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 2.js 308ms 1.2ms 65.1MB 300ms 10ms node 24.3.0
ruby 1.rb 342ms 2.8ms 13.5MB 323ms 0ms ruby/yjit 3.4.4
ruby 1.rb 526ms 4.3ms 12.9MB 507ms 3ms ruby 3.4.4
javascript 1.js 574ms 4.2ms 63.1MB 560ms 10ms node 24.3.0
javascript 2.js 676ms 3.1ms 123.0MB 750ms 50ms bun 1.2.17
ruby 1-m.rb 707ms 30ms 372.7MB 1240ms 147ms truffleruby 24.2.1
javascript 1.js 842ms 16ms 106.1MB 943ms 70ms bun 1.2.17

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 2.js 840ms 2.8ms 71.5MB 827ms 13ms node 24.3.0
ruby 1.rb 913ms 4.6ms 13.5MB 897ms 0ms ruby/yjit 3.4.4
ruby 1-m.rb 1253ms 6.5ms 411.5MB 1750ms 167ms truffleruby 24.2.1
ruby 1.rb 1478ms 32ms 12.9MB 1457ms 7ms ruby 3.4.4
javascript 1.js 1632ms 5.6ms 69.8MB 1613ms 17ms node 24.3.0
javascript 2.js 1912ms 1.7ms 123.4MB 2090ms 80ms bun 1.2.17
javascript 1.js 2440ms 16ms 106.0MB 2740ms 170ms bun 1.2.17

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 2.js 164ms 1.8ms 59.0MB 160ms 3ms node 24.3.0
javascript 1.js 171ms 1.6ms 60.4MB 160ms 7ms node 24.3.0
ruby 1.rb 198ms 2.3ms 13.5MB 180ms 10ms ruby/yjit 3.4.4
ruby 1.rb 289ms 3.7ms 12.8MB 270ms 7ms ruby 3.4.4
javascript 1.js 328ms 1.8ms 130.1MB 367ms 80ms bun 1.2.17
javascript 2.js 376ms 2.2ms 125.0MB 407ms 53ms bun 1.2.17
ruby 1-m.rb 530ms 42ms 354.3MB 1040ms 137ms truffleruby 24.2.1

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.js 483ms 5.4ms 139.7MB 633ms 127ms bun 1.2.17
javascript 1.js 598ms 14ms 230.0MB 600ms 117ms node 24.3.0
ruby 1-m.rb 4269ms 456ms 556.4MB 10877ms 377ms truffleruby 24.2.1
ruby 1.rb timeout 0.0ms 93.5MB 4947ms 40ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 97.2MB 4933ms 50ms ruby/yjit 3.4.4

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 120ms 0.5ms 84.5MB 107ms 33ms bun 1.2.17
javascript 1.js 165ms 0.4ms 100.0MB 160ms 33ms node 24.3.0
ruby 1-m.rb 1985ms 41ms 547.4MB 5130ms 257ms truffleruby 24.2.1
ruby 1.rb 3266ms 10ms 38.3MB 3233ms 20ms ruby/yjit 3.4.4
ruby 1.rb 4383ms 23ms 37.6MB 4340ms 27ms ruby 3.4.4

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6.js 456ms 3.7ms 58.6MB 447ms 3ms node 24.3.0
javascript 6.js 602ms 8.9ms 45.0MB 607ms 3ms bun 1.2.17
ruby 2.rb 835ms 11ms 315.3MB 1080ms 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 4980ms 7ms ruby/yjit 3.4.4

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6.js 80ms 0.7ms 58.6MB 67ms 10ms node 24.3.0
javascript 6.js 82ms 1.0ms 45.0MB 87ms 3ms bun 1.2.17
ruby 2-m.rb 323ms 13ms 309.9MB 563ms 123ms truffleruby 24.2.1
ruby 2.rb 1026ms 2.7ms 13.5MB 1007ms 7ms ruby/yjit 3.4.4
ruby 2.rb 2901ms 120ms 12.8MB 2887ms 0ms ruby 3.4.4

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb timeout 0.0ms 325.3MB 4850ms 137ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 327.0MB 4857ms 130ms ruby/yjit 3.4.4
ruby 1.rb timeout 0.0ms 731.6MB 5057ms 170ms truffleruby 24.2.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1-m.rb 1708ms 13ms 494.0MB 2480ms 177ms truffleruby 24.2.1
ruby 1.rb 3451ms 53ms 131.8MB 3363ms 73ms ruby/yjit 3.4.4
ruby 1.rb 4587ms 13ms 131.1MB 4493ms 77ms ruby 3.4.4

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 3.js timeout 0.0ms 122.6MB 4957ms 43ms node 24.3.0
ruby 1.rb timeout 0.0ms 46.4MB 4923ms 63ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 130.8MB 4903ms 83ms ruby/yjit 3.4.4
ruby 1.rb timeout 0.0ms 451.3MB 13403ms 393ms truffleruby 24.2.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 3.js 1089ms 1.6ms 73.5MB 1063ms 20ms node 24.3.0
ruby 1-m.rb 1666ms 261ms 414.4MB 4383ms 213ms truffleruby 24.2.1
ruby 1.rb 1783ms 63ms 130.9MB 1673ms 97ms ruby/yjit 3.4.4
ruby 1.rb 1814ms 58ms 130.3MB 1703ms 93ms ruby 3.4.4

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 2192ms 31ms 119.8MB 8330ms 63ms node 24.3.0
ruby 4.rb timeout 0.0ms 12.9MB 4980ms 0ms ruby 3.4.4
ruby 4.rb timeout 0.0ms 13.5MB 4983ms 3ms ruby/yjit 3.4.4
ruby 4.rb timeout 0.0ms 449.5MB 5163ms 247ms truffleruby 24.2.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 668ms 9.4ms 118.0MB 2350ms 63ms node 24.3.0
ruby 4.rb 4909ms 38ms 442.4MB 5200ms 217ms truffleruby 24.2.1
ruby 4.rb timeout 0.0ms 12.9MB 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
javascript 6-m.js 278ms 3.8ms 114.6MB 847ms 60ms node 24.3.0
ruby 4.rb 1458ms 5.9ms 388.7MB 1803ms 150ms truffleruby 24.2.1
ruby 4.rb timeout 0.0ms 12.9MB 4980ms 0ms ruby 3.4.4
ruby 4.rb timeout 0.0ms 13.6MB 4983ms 0ms ruby/yjit 3.4.4