Programming Language and compiler
Benchmarks

Javascript VS Ruby benchmarks

Current benchmark data was generated on Fri Aug 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 924ms 19ms 173.9MB 1400ms 193ms bun 1.2.19
javascript 1.js 1057ms 11ms 455.9MB 973ms 230ms node 24.4.1
ruby 1-m.rb 1486ms 2574ms 801.2MB 6400ms 613ms truffleruby 24.2.2
ruby 1.rb 4961ms 19ms 109.4MB 4863ms 83ms ruby/yjit 3.4.5
ruby 1.rb timeout 0.0ms 70.0MB 4943ms 43ms ruby 3.4.5

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 99ms 1.4ms 76.3MB 80ms 23ms bun 1.2.19
javascript 1.js 128ms 0.9ms 81.6MB 127ms 23ms node 24.4.1
ruby 1.rb 504ms 1.1ms 20.3MB 480ms 10ms ruby/yjit 3.4.5
ruby 1-m.rb 528ms 58ms 407.2MB 1043ms 157ms truffleruby 24.2.2
ruby 1.rb 932ms 5.8ms 19.5MB 913ms 7ms ruby 3.4.5

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 1412ms 3.1ms 63.8MB 1330ms 67ms ruby/yjit 3.4.5
javascript 1.js 1682ms 32ms 189.9MB 1653ms 93ms node 24.4.1
ruby 1.rb 1861ms 27ms 63.1MB 1780ms 63ms ruby 3.4.5
javascript 1.js 2481ms 58ms 102.1MB 2540ms 57ms bun 1.2.19
ruby 1.rb timeout 0.0ms 339.5MB 4537ms 1523ms truffleruby 24.2.2

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 150ms 1.5ms 25.6MB 117ms 17ms ruby/yjit 3.4.5
javascript 1.js 157ms 2.7ms 75.6MB 147ms 23ms node 24.4.1
ruby 1.rb 181ms 2.8ms 25.0MB 153ms 17ms ruby 3.4.5
javascript 1.js 198ms 3.5ms 86.8MB 240ms 33ms bun 1.2.19
ruby 1.rb timeout 0.0ms 339.9MB 4580ms 1487ms truffleruby 24.2.2

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 280ms 5.6ms 67.8MB 290ms 27ms node 24.4.1
javascript 1.js 519ms 4.8ms 74.4MB 497ms 17ms bun 1.2.19

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 125ms 1.2ms 64.0MB 117ms 10ms node 24.4.1
javascript 1.js 508ms 2.5ms 63.9MB 487ms 17ms bun 1.2.19

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 11ms 0.5ms 30.6MB 0ms 0ms bun 1.2.19
javascript 1.js 32ms 0.3ms 50.7MB 18ms 4ms node 24.4.1
ruby 1.rb 35ms 0.6ms 141.9MB 12ms 28ms truffleruby 24.2.2
ruby 1.rb 50ms 0.8ms 12.8MB 36ms 4ms ruby 3.4.5
ruby 1.rb 51ms 1.7ms 13.0MB 36ms 4ms ruby/yjit 3.4.5

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.bun.js 261ms 2.3ms 73.4MB 127ms 327ms bun 1.2.19
javascript 1.js 2352ms 141ms 268.4MB 2327ms 1063ms node 24.4.1

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.bun.js 95ms 13ms 53.6MB 33ms 80ms bun 1.2.19
javascript 1.js 344ms 5.6ms 85.4MB 330ms 123ms node 24.4.1

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 66ms 1.5ms 61.6MB 40ms 17ms bun 1.2.19
javascript 1.js 104ms 1.5ms 75.6MB 93ms 13ms node 24.4.1
ruby 1.rb 251ms 0.5ms 29.2MB 220ms 13ms ruby 3.4.5
ruby 1.rb 253ms 3.8ms 29.0MB 227ms 10ms ruby/yjit 3.4.5
ruby 1-m.rb 4461ms 188ms 483.7MB 11710ms 347ms truffleruby 24.2.2

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 364ms 0.6ms 200.0MB 323ms 80ms bun 1.2.19
javascript 1.js 567ms 5.4ms 255.8MB 577ms 127ms node 24.4.1
ruby 1.rb 2102ms 20ms 132.8MB 2010ms 77ms ruby/yjit 3.4.5
ruby 1.rb 2103ms 10ms 133.9MB 2020ms 70ms ruby 3.4.5
ruby 1.rb timeout 0.0ms 502.2MB 13287ms 387ms truffleruby 24.2.2

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 2.js 305ms 1.5ms 65.3MB 297ms 10ms node 24.4.1
ruby 1.rb 340ms 5.5ms 13.5MB 323ms 3ms ruby/yjit 3.4.5
ruby 1.rb 544ms 2.3ms 12.9MB 530ms 3ms ruby 3.4.5
javascript 1.js 565ms 1.0ms 63.8MB 550ms 10ms node 24.4.1
javascript 2.js 688ms 2.6ms 121.7MB 750ms 53ms bun 1.2.19
ruby 1-m.rb 702ms 23ms 374.1MB 1243ms 143ms truffleruby 24.2.2
javascript 1.js 855ms 21ms 104.9MB 920ms 103ms bun 1.2.19

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 2.js 833ms 3.5ms 72.3MB 820ms 10ms node 24.4.1
ruby 1.rb 893ms 4.0ms 13.5MB 873ms 10ms ruby/yjit 3.4.5
ruby 1-m.rb 1199ms 32ms 415.0MB 1677ms 160ms truffleruby 24.2.2
ruby 1.rb 1542ms 5.2ms 12.9MB 1523ms 3ms ruby 3.4.5
javascript 1.js 1619ms 0.4ms 70.7MB 1597ms 13ms node 24.4.1
javascript 2.js 1924ms 12ms 121.8MB 2100ms 67ms bun 1.2.19
javascript 1.js 2374ms 12ms 104.9MB 2657ms 173ms bun 1.2.19

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 2.js 164ms 1.1ms 59.4MB 153ms 10ms node 24.4.1
javascript 1.js 170ms 5.4ms 60.8MB 153ms 10ms node 24.4.1
ruby 1.rb 195ms 1.8ms 13.5MB 180ms 3ms ruby/yjit 3.4.5
ruby 1.rb 297ms 2.9ms 12.8MB 280ms 3ms ruby 3.4.5
javascript 1.js 318ms 2.6ms 129.6MB 357ms 77ms bun 1.2.19
javascript 2.js 374ms 2.9ms 124.3MB 403ms 53ms bun 1.2.19
ruby 1-m.rb 476ms 13ms 357.3MB 890ms 140ms truffleruby 24.2.2

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.js 455ms 5.8ms 138.2MB 590ms 110ms bun 1.2.19
javascript 1.js 563ms 8.0ms 231.0MB 570ms 100ms node 24.4.1
ruby 1-m.rb 3864ms 19ms 565.6MB 9860ms 350ms truffleruby 24.2.2
ruby 1.rb timeout 0.0ms 94.1MB 4937ms 47ms ruby 3.4.5
ruby 1.rb timeout 0.0ms 94.8MB 4940ms 50ms ruby/yjit 3.4.5

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 112ms 1.9ms 82.8MB 100ms 33ms bun 1.2.19
javascript 1.js 157ms 4.3ms 100.8MB 150ms 37ms node 24.4.1
ruby 1-m.rb 2027ms 88ms 571.0MB 5207ms 273ms truffleruby 24.2.2
ruby 1.rb 3296ms 19ms 38.3MB 3260ms 20ms ruby/yjit 3.4.5
ruby 1.rb 4401ms 19ms 37.8MB 4363ms 20ms ruby 3.4.5

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6.js 460ms 3.5ms 59.2MB 447ms 10ms node 24.4.1
javascript 6.js 596ms 2.0ms 43.5MB 597ms 10ms bun 1.2.19
ruby 2.rb 817ms 1.5ms 309.6MB 1057ms 110ms truffleruby 24.2.2
ruby 2.rb timeout 0.0ms 12.8MB 4983ms 7ms ruby 3.4.5
ruby 2.rb timeout 0.0ms 13.5MB 4980ms 0ms ruby/yjit 3.4.5

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6.js 79ms 0.9ms 43.5MB 80ms 3ms bun 1.2.19
javascript 6.js 79ms 2.5ms 58.8MB 67ms 7ms node 24.4.1
ruby 2-m.rb 309ms 13ms 309.8MB 537ms 117ms truffleruby 24.2.2
ruby 2.rb 1044ms 2.3ms 13.5MB 1023ms 7ms ruby/yjit 3.4.5
ruby 2.rb 2832ms 56ms 12.8MB 2813ms 7ms ruby 3.4.5

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 2503ms 15ms 61.5MB 2507ms 13ms node 24.4.1
javascript 1.js 2801ms 4.4ms 82.0MB 2817ms 47ms bun 1.2.19

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 674ms 2.9ms 59.6MB 680ms 10ms node 24.4.1
javascript 1.js 741ms 2.7ms 81.0MB 740ms 30ms bun 1.2.19

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 3.js 4600ms 4.2ms 123.2MB 4550ms 50ms node 24.4.1
ruby 1.rb timeout 0.0ms 130.1MB 4833ms 153ms ruby 3.4.5
ruby 1.rb timeout 0.0ms 130.9MB 4840ms 147ms ruby/yjit 3.4.5
ruby 1.rb timeout 0.0ms 451.7MB 13370ms 400ms truffleruby 24.2.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 3.js 1014ms 1.7ms 73.8MB 993ms 17ms node 24.4.1
ruby 1-m.rb 1509ms 109ms 384.9MB 4013ms 193ms truffleruby 24.2.2
ruby 1.rb 1759ms 8.3ms 130.9MB 1633ms 113ms ruby/yjit 3.4.5
ruby 1.rb 1782ms 5.6ms 130.0MB 1650ms 123ms ruby 3.4.5

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 2185ms 26ms 119.6MB 8307ms 67ms node 24.4.1
ruby 4.rb timeout 0.0ms 12.9MB 4987ms 0ms ruby 3.4.5
ruby 4.rb timeout 0.0ms 13.5MB 4980ms 10ms ruby/yjit 3.4.5
ruby 4.rb timeout 0.0ms 420.8MB 5170ms 227ms truffleruby 24.2.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 660ms 6.2ms 117.7MB 2340ms 50ms node 24.4.1
ruby 4.rb 4810ms 20ms 422.1MB 5107ms 190ms truffleruby 24.2.2
ruby 4.rb timeout 0.0ms 12.9MB 4983ms 0ms ruby 3.4.5
ruby 4.rb timeout 0.0ms 13.6MB 4983ms 0ms ruby/yjit 3.4.5

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 273ms 4.5ms 114.4MB 847ms 47ms node 24.4.1
ruby 4.rb 1419ms 19ms 379.8MB 1753ms 130ms truffleruby 24.2.2
ruby 4.rb timeout 0.0ms 12.9MB 4987ms 0ms ruby 3.4.5
ruby 4.rb timeout 0.0ms 13.8MB 4983ms 0ms ruby/yjit 3.4.5