Programming Language and compiler
Benchmarks

Javascript VS Ruby benchmarks

Current benchmark data was generated on Mon Jun 23 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 947ms 18ms 176.8MB 1447ms 207ms bun 1.2.17
javascript 1.js 1054ms 6.2ms 453.4MB 980ms 223ms node 24.2.0
ruby 1.rb 4905ms 47ms 110.1MB 4803ms 87ms ruby/yjit 3.4.4
ruby 1.rb timeout 0.0ms 70.5MB 4950ms 37ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 757.2MB 6760ms 690ms truffleruby 24.2.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 100ms 0.8ms 77.5MB 77ms 27ms bun 1.2.17
javascript 1.js 127ms 1.5ms 81.2MB 130ms 20ms node 24.2.0
ruby 1.rb 500ms 4.2ms 20.3MB 477ms 10ms ruby/yjit 3.4.4
ruby 1-m.rb 571ms 43ms 418.8MB 1113ms 167ms truffleruby 24.2.1
ruby 1.rb 948ms 9.8ms 19.5MB 927ms 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 1462ms 9.4ms 63.8MB 1387ms 60ms ruby/yjit 3.4.4
javascript 1.js 1629ms 9.3ms 189.9MB 1603ms 103ms node 24.2.0
ruby 1.rb 1870ms 14ms 63.3MB 1797ms 60ms ruby 3.4.4
javascript 1.js 2507ms 85ms 101.4MB 2553ms 67ms bun 1.2.17
ruby 1.rb timeout 0.0ms 329.4MB 4770ms 1413ms truffleruby 24.2.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 156ms 2.7ms 25.8MB 120ms 20ms ruby/yjit 3.4.4
javascript 1.js 158ms 2.0ms 75.4MB 140ms 23ms node 24.2.0
ruby 1.rb 181ms 2.5ms 25.1MB 147ms 20ms ruby 3.4.4
javascript 1.js 200ms 4.1ms 86.8MB 237ms 30ms bun 1.2.17
ruby 1.rb timeout 0.0ms 342.9MB 4630ms 1483ms truffleruby 24.2.1

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 302ms 4.5ms 67.7MB 320ms 23ms node 24.2.0
javascript 1.js 519ms 3.3ms 75.7MB 497ms 20ms bun 1.2.17

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 136ms 13ms 64.5MB 120ms 17ms node 24.2.0
javascript 1.js 512ms 13ms 65.7MB 487ms 23ms bun 1.2.17

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 33ms 1.9ms 50.9MB 18ms 8ms node 24.2.0
ruby 1.rb 36ms 0.9ms 141.8MB 12ms 30ms truffleruby 24.2.1
ruby 1.rb 51ms 1.3ms 12.8MB 40ms 0ms ruby 3.4.4
ruby 1.rb 54ms 1.3ms 12.9MB 40ms 4ms ruby/yjit 3.4.4

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.bun.js 270ms 14ms 75.3MB 140ms 333ms bun 1.2.17
javascript 1.js 2465ms 105ms 269.7MB 2423ms 1127ms node 24.2.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.bun.js 104ms 11ms 55.4MB 37ms 83ms bun 1.2.17
javascript 1.js 375ms 26ms 85.9MB 360ms 133ms node 24.2.0

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 65ms 1.2ms 62.5MB 40ms 13ms bun 1.2.17
javascript 1.js 104ms 1.9ms 74.8MB 90ms 20ms node 24.2.0
ruby 1.rb 254ms 3.5ms 30.1MB 227ms 13ms ruby/yjit 3.4.4
ruby 1.rb 257ms 3.6ms 28.9MB 230ms 10ms ruby 3.4.4
ruby 1-m.rb 4425ms 158ms 530.8MB 11603ms 353ms truffleruby 24.2.1

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 350ms 1.2ms 200.9MB 303ms 87ms bun 1.2.17
javascript 1.js 573ms 4.9ms 254.9MB 590ms 117ms node 24.2.0
ruby 1.rb 2081ms 8.6ms 134.5MB 1993ms 77ms ruby/yjit 3.4.4
ruby 1.rb 2099ms 21ms 133.4MB 2010ms 80ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 595.2MB 13200ms 383ms 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 305ms 0.7ms 65.3MB 293ms 10ms node 24.2.0
ruby 1.rb 342ms 2.7ms 13.5MB 323ms 7ms ruby/yjit 3.4.4
ruby 1.rb 530ms 6.8ms 12.9MB 513ms 3ms ruby 3.4.4
javascript 1.js 565ms 3.2ms 63.6MB 550ms 13ms node 24.2.0
javascript 2.js 669ms 8.0ms 122.9MB 737ms 53ms bun 1.2.17
ruby 1-m.rb 675ms 36ms 370.2MB 1157ms 147ms truffleruby 24.2.1
javascript 1.js 843ms 21ms 106.1MB 907ms 93ms bun 1.2.17

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 2.js 835ms 6.9ms 71.9MB 820ms 17ms node 24.2.0
ruby 1.rb 908ms 1.9ms 13.5MB 887ms 10ms ruby/yjit 3.4.4
ruby 1-m.rb 1250ms 4.8ms 410.5MB 1783ms 160ms truffleruby 24.2.1
ruby 1.rb 1469ms 7.6ms 12.8MB 1453ms 7ms ruby 3.4.4
javascript 1.js 1619ms 16ms 70.0MB 1603ms 13ms node 24.2.0
javascript 2.js 1893ms 6.7ms 123.5MB 2067ms 73ms bun 1.2.17
javascript 1.js 2431ms 36ms 105.9MB 2720ms 160ms bun 1.2.17

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 2.js 163ms 1.1ms 59.8MB 157ms 10ms node 24.2.0
javascript 1.js 166ms 2.3ms 61.0MB 150ms 10ms node 24.2.0
ruby 1.rb 202ms 6.0ms 13.5MB 183ms 7ms ruby/yjit 3.4.4
ruby 1.rb 289ms 3.4ms 12.8MB 273ms 3ms ruby 3.4.4
javascript 1.js 327ms 3.4ms 130.8MB 357ms 80ms bun 1.2.17
javascript 2.js 368ms 3.7ms 124.9MB 393ms 60ms bun 1.2.17
ruby 1-m.rb 537ms 6.4ms 359.2MB 1050ms 143ms 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 473ms 10ms 137.8MB 617ms 117ms bun 1.2.17
javascript 1.js 565ms 6.5ms 230.7MB 567ms 110ms node 24.2.0
ruby 1-m.rb 3904ms 35ms 557.5MB 9970ms 347ms truffleruby 24.2.1
ruby 1.rb timeout 0.0ms 93.5MB 4940ms 47ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 97.2MB 4940ms 47ms ruby/yjit 3.4.4

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 116ms 2.9ms 84.8MB 100ms 33ms bun 1.2.17
javascript 1.js 160ms 2.6ms 101.3MB 157ms 40ms node 24.2.0
ruby 1-m.rb 2022ms 35ms 597.2MB 5207ms 257ms truffleruby 24.2.1
ruby 1.rb 3278ms 18ms 38.4MB 3243ms 20ms ruby/yjit 3.4.4
ruby 1.rb 4357ms 20ms 37.6MB 4323ms 20ms 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 0.7ms 59.0MB 450ms 0ms node 24.2.0
javascript 6.js 599ms 2.6ms 44.9MB 603ms 7ms bun 1.2.17
ruby 2.rb 831ms 18ms 310.8MB 1067ms 110ms truffleruby 24.2.1
ruby 2.rb timeout 0.0ms 12.8MB 4983ms 0ms 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 79ms 1.4ms 58.9MB 63ms 10ms node 24.2.0
javascript 6.js 82ms 2.6ms 44.9MB 83ms 10ms bun 1.2.17
ruby 2-m.rb 310ms 3.7ms 323.2MB 563ms 110ms truffleruby 24.2.1
ruby 2.rb 1029ms 3.6ms 13.5MB 1017ms 0ms ruby/yjit 3.4.4
ruby 2.rb 2937ms 80ms 12.8MB 2920ms 3ms ruby 3.4.4

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 2530ms 12ms 61.9MB 2537ms 10ms node 24.2.0
javascript 1.js 2803ms 2.3ms 82.0MB 2810ms 60ms bun 1.2.17

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 704ms 57ms 60.1MB 707ms 10ms node 24.2.0
javascript 1.js 729ms 4.2ms 81.9MB 727ms 27ms bun 1.2.17

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 3.js 4612ms 24ms 122.4MB 4567ms 43ms node 24.2.0
ruby 1.rb timeout 0.0ms 130.2MB 4873ms 113ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 131.1MB 4867ms 123ms ruby/yjit 3.4.4
ruby 1.rb timeout 0.0ms 456.7MB 13337ms 400ms truffleruby 24.2.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 3.js 1016ms 4.2ms 74.0MB 997ms 17ms node 24.2.0
ruby 1-m.rb 1742ms 229ms 407.7MB 4603ms 207ms truffleruby 24.2.1
ruby 1.rb 1798ms 73ms 130.1MB 1690ms 93ms ruby 3.4.4
ruby 1.rb 1828ms 6.0ms 131.0MB 1690ms 123ms ruby/yjit 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 2170ms 4.5ms 118.6MB 8280ms 63ms node 24.2.0
ruby 4.rb timeout 0.0ms 12.9MB 4983ms 3ms 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 444.0MB 5170ms 240ms truffleruby 24.2.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 654ms 2.1ms 118.9MB 2317ms 63ms node 24.2.0
ruby 4.rb 4929ms 35ms 450.6MB 5243ms 210ms truffleruby 24.2.1
ruby 4.rb timeout 0.0ms 12.9MB 4980ms 3ms ruby 3.4.4
ruby 4.rb timeout 0.0ms 13.5MB 4987ms 0ms 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 271ms 4.8ms 115.9MB 830ms 53ms node 24.2.0
ruby 4.rb 1454ms 17ms 382.2MB 1783ms 143ms 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 0ms ruby/yjit 3.4.4