Programming Language and compiler
Benchmarks

Java VS Ruby benchmarks

Current benchmark data was generated on Sun Dec 01 2024, 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
java 2.java 471ms 5.6ms 648.0MB 570ms 103ms openjdk 23
java 2-m.java 482ms 17ms 645.0MB 687ms 103ms graal/jvm 17.0.8
java 2.java 530ms 1.5ms 571.1MB 573ms 137ms openjdk 21
java 2.java 1186ms 22ms 1052.1MB 590ms 767ms openjdk/zgc 21
ruby 1-m.rb 3037ms 2639ms 793.8MB 6587ms 477ms truffleruby 24.1.1
ruby 1.rb 3763ms 40ms 113.5MB 3657ms 90ms ruby/yjit 3.3.6
ruby 1.rb timeout 0.0ms 78.9MB 4930ms 50ms ruby 3.3.6

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 2.java 128ms 1.7ms 166.9MB 153ms 33ms openjdk 21
java 2.java 130ms 5.1ms 98.0MB 157ms 37ms openjdk 23
java 2-m.java 157ms 17ms 230.2MB 233ms 53ms graal/jvm 17.0.8
java 2.java 309ms 7.0ms 243.6MB 153ms 207ms openjdk/zgc 21
ruby 1.rb 411ms 3.8ms 36.4MB 370ms 23ms ruby/yjit 3.3.6
ruby 1-m.rb 587ms 83ms 434.3MB 1170ms 163ms truffleruby 24.1.1
ruby 1.rb 847ms 11ms 36.3MB 807ms 27ms ruby 3.3.6

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 586ms 39ms 264.1MB 1630ms 67ms openjdk 21
java 1-m.java 603ms 30ms 227.8MB 1633ms 67ms openjdk 23
java 1-m.java 623ms 39ms 404.3MB 1197ms 110ms graal/jvm 17.0.8
java 1-m.java 944ms 27ms 514.3MB 1567ms 430ms openjdk/zgc 21

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 299ms 8.0ms 230.9MB 583ms 73ms graal/jvm 17.0.8
java 1-m.java 343ms 18ms 178.5MB 930ms 43ms openjdk 21
java 1-m.java 394ms 8.3ms 112.4MB 1053ms 53ms openjdk 23
java 1-m.java 493ms 2.1ms 215.3MB 953ms 217ms openjdk/zgc 21

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 897ms 23ms 100.1MB 3263ms 53ms graal/jvm 17.0.8
java 1-m.java 965ms 57ms 50.0MB 3537ms 20ms openjdk 23
java 1-m.java 983ms 6.8ms 49.0MB 3597ms 37ms openjdk 21
java 1-m.java 1043ms 9.0ms 46.1MB 3407ms 143ms openjdk/zgc 21

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 180ms 5.5ms 48.5MB 493ms 23ms openjdk 21
java 1-m.java 194ms 5.8ms 50.1MB 480ms 23ms openjdk 23
java 1-m.java 202ms 11ms 101.4MB 547ms 33ms graal/jvm 17.0.8
java 1-m.java 295ms 2.3ms 45.7MB 483ms 137ms openjdk/zgc 21

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 4.java 457ms 0.7ms 47.4MB 543ms 20ms openjdk 21
java 4-m.java 462ms 19ms 104.6MB 670ms 43ms graal/jvm 17.0.8
java 4.java 466ms 9.2ms 49.3MB 567ms 17ms openjdk 23
java 4.java 568ms 6.1ms 47.0MB 550ms 133ms openjdk/zgc 21
ruby 6.rb 2124ms 38ms 37.6MB 2080ms 27ms ruby/yjit 3.3.6
ruby 6-m.rb 2363ms 337ms 455.2MB 5933ms 410ms truffleruby 24.1.1
ruby 6.rb 3752ms 11ms 39.3MB 3713ms 27ms ruby 3.3.6

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 4-m.java 124ms 4.1ms 87.9MB 163ms 30ms graal/jvm 17.0.8
java 4.java 127ms 1.0ms 46.1MB 170ms 17ms openjdk 21
java 4.java 132ms 2.0ms 47.8MB 177ms 17ms openjdk 23
java 4.java 241ms 3.8ms 43.8MB 153ms 140ms openjdk/zgc 21
ruby 6.rb 286ms 3.9ms 30.8MB 253ms 17ms ruby/yjit 3.3.6
ruby 6.rb 441ms 2.4ms 31.0MB 410ms 17ms ruby 3.3.6
ruby 6-m.rb 845ms 16ms 397.2MB 2117ms 157ms truffleruby 24.1.1

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 41ms 0.8ms 168.5MB 20ms 26ms truffleruby 24.1.1
java 1.java 68ms 3.0ms 59.0MB 70ms 20ms graal/jvm 17.0.8
ruby 1.rb 69ms 1.8ms 28.0MB 48ms 12ms ruby 3.3.6
ruby 1.rb 70ms 0.6ms 28.1MB 42ms 14ms ruby/yjit 3.3.6
java 1.java 73ms 4.6ms 44.8MB 74ms 22ms openjdk 23
java 1.java 77ms 1.6ms 43.8MB 76ms 20ms openjdk 21
java 1.java 187ms 4.1ms 44.6MB 82ms 128ms openjdk/zgc 21

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 3-m.java 992ms 16ms 155.1MB 3317ms 67ms openjdk 23
java 3-m.java 1000ms 78ms 127.5MB 3403ms 30ms openjdk 21
java 3-m.java 1150ms 14ms 183.6MB 3873ms 70ms graal/jvm 17.0.8
java 3-m.java 1444ms 61ms 180.9MB 4577ms 197ms openjdk/zgc 21

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 3-m.java 332ms 16ms 101.3MB 963ms 43ms openjdk 21
java 3-m.java 345ms 27ms 89.8MB 977ms 67ms openjdk 23
java 3-m.java 361ms 32ms 141.0MB 980ms 53ms graal/jvm 17.0.8
java 3-m.java 440ms 3.1ms 98.5MB 930ms 167ms openjdk/zgc 21

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1b.java 1164ms 9.6ms 54.3MB 1273ms 23ms openjdk 21
java 1b.java 1171ms 5.3ms 55.9MB 1297ms 20ms openjdk 23
java 1b.java 1181ms 39ms 108.6MB 1363ms 33ms graal/jvm 17.0.8
java 1.java 1260ms 13ms 139.9MB 1367ms 57ms graal/jvm 17.0.8
java 1b.java 1278ms 21ms 51.4MB 1277ms 130ms openjdk/zgc 21
java 1a.java 1654ms 9.2ms 54.9MB 1747ms 27ms openjdk 21
java 1a.java 1665ms 2.2ms 55.5MB 1770ms 27ms openjdk 23
java 1a.java 1688ms 16ms 105.6MB 1807ms 37ms graal/jvm 17.0.8
java 1.java 1701ms 1.3ms 202.3MB 1780ms 37ms openjdk 21
java 1.java 1709ms 2.1ms 314.7MB 1770ms 53ms openjdk 23
java 1a.java 1780ms 5.2ms 53.7MB 1753ms 147ms openjdk/zgc 21
java 1.java 2351ms 5.1ms 853.8MB 1813ms 637ms openjdk/zgc 21
java 2.java timeout 0.0ms 606.2MB 5250ms 140ms openjdk 21
java 2.java timeout 0.0ms 772.9MB 5320ms 140ms openjdk 23
java 2.java timeout 0.0ms 3284.3MB 3460ms 1913ms openjdk/zgc 21

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1b-m.java 181ms 13ms 49.6MB 290ms 20ms openjdk 21
java 1.java 196ms 12ms 82.1MB 267ms 27ms openjdk 21
java 1b-m.java 198ms 8.9ms 51.2MB 310ms 20ms openjdk 23
java 1a-m.java 199ms 3.5ms 50.3MB 310ms 17ms openjdk 21
java 1-m.java 200ms 2.7ms 87.0MB 277ms 33ms openjdk 23
java 1a-m.java 201ms 5.5ms 52.1MB 303ms 20ms openjdk 23
java 1-m.java 204ms 14ms 115.4MB 317ms 40ms graal/jvm 17.0.8
java 1a-m.java 211ms 6.8ms 102.6MB 307ms 50ms graal/jvm 17.0.8
java 1b-m.java 233ms 15ms 104.0MB 400ms 40ms graal/jvm 17.0.8
java 1b.java 308ms 1.6ms 49.4MB 303ms 137ms openjdk/zgc 21
java 1a.java 315ms 3.0ms 49.9MB 300ms 133ms openjdk/zgc 21
java 1.java 338ms 4.9ms 116.4MB 270ms 160ms openjdk/zgc 21
java 2-m.java 579ms 14ms 826.3MB 843ms 127ms openjdk 23
java 2-m.java 621ms 39ms 586.7MB 887ms 127ms openjdk 21
java 2.java 1590ms 18ms 1349.9MB 863ms 1037ms openjdk/zgc 21

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 401ms 2.9ms 679.9MB 473ms 90ms openjdk 21
java 1.java 405ms 5.1ms 539.3MB 507ms 87ms openjdk 23
java 1-m.java 417ms 30ms 635.2MB 610ms 123ms graal/jvm 17.0.8
java 1.java 1094ms 19ms 989.4MB 447ms 767ms openjdk/zgc 21
ruby 1-m.rb 4499ms 14ms 553.8MB 11583ms 350ms truffleruby 24.1.1
ruby 1.rb timeout 0.0ms 88.0MB 4917ms 70ms ruby 3.3.6
ruby 1.rb timeout 0.0ms 88.2MB 4910ms 70ms ruby/yjit 3.3.6

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 166ms 3.4ms 159.1MB 243ms 40ms openjdk 23
java 1-m.java 166ms 2.4ms 206.3MB 243ms 40ms openjdk 21
java 1-m.java 225ms 28ms 258.5MB 380ms 57ms graal/jvm 17.0.8
java 1.java 442ms 45ms 341.6MB 223ms 290ms openjdk/zgc 21
ruby 1-m.rb 2205ms 87ms 510.9MB 5660ms 270ms truffleruby 24.1.1
ruby 1.rb 3025ms 9.5ms 47.1MB 2983ms 27ms ruby/yjit 3.3.6
ruby 1.rb 4035ms 24ms 46.9MB 3990ms 30ms ruby 3.3.6

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 443ms 2.2ms 45.3MB 480ms 13ms openjdk 21
java 1.java 448ms 1.5ms 48.5MB 483ms 20ms openjdk 23
java 1.java 450ms 4.6ms 83.3MB 477ms 30ms graal/jvm 17.0.8
java 1.java 569ms 1.3ms 46.9MB 493ms 137ms openjdk/zgc 21
ruby 2.rb 861ms 20ms 329.1MB 1117ms 120ms truffleruby 24.1.1
java 2.java 1248ms 2.9ms 611.8MB 1370ms 97ms openjdk 21
java 2.java 1255ms 4.8ms 780.5MB 1383ms 97ms openjdk 23
java 2.java 3283ms 56ms 2413.4MB 1647ms 1847ms openjdk/zgc 21
ruby 2.rb timeout 0.0ms 28.0MB 4967ms 17ms ruby 3.3.6
ruby 2.rb timeout 0.0ms 28.3MB 4963ms 17ms ruby/yjit 3.3.6

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 120ms 2.1ms 87.3MB 137ms 37ms graal/jvm 17.0.8
java 1.java 121ms 1.0ms 45.4MB 163ms 17ms openjdk 21
java 1.java 123ms 1.3ms 48.3MB 157ms 13ms openjdk 23
java 1.java 245ms 0.4ms 44.9MB 160ms 140ms openjdk/zgc 21
java 2-m.java 307ms 2.9ms 343.0MB 450ms 57ms openjdk 21
java 2-m.java 313ms 5.4ms 387.7MB 447ms 67ms openjdk 23
ruby 2-m.rb 323ms 3.4ms 328.9MB 570ms 107ms truffleruby 24.1.1
java 2.java 704ms 8.8ms 536.4MB 473ms 420ms openjdk/zgc 21
ruby 2.rb 1450ms 8.5ms 28.3MB 1413ms 23ms ruby/yjit 3.3.6
ruby 2.rb 2881ms 59ms 28.1MB 2850ms 20ms ruby 3.3.6

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 420ms 1.7ms 118.1MB 460ms 20ms openjdk 23
java 1.java 432ms 8.9ms 115.2MB 487ms 20ms openjdk 21
java 1.java 604ms 2.3ms 112.6MB 513ms 163ms openjdk/zgc 21
java 1-m.java 703ms 85ms 239.9MB 1043ms 80ms graal/jvm 17.0.8
java 2.java 781ms 3.3ms 60.6MB 833ms 13ms openjdk 23
java 2.java 789ms 8.6ms 57.0MB 850ms 20ms openjdk 21
java 2.java 844ms 0.9ms 55.1MB 773ms 147ms openjdk/zgc 21
java 2-m.java 1312ms 74ms 240.5MB 2287ms 103ms graal/jvm 17.0.8
ruby 1.rb timeout 0.0ms 340.6MB 4843ms 143ms ruby 3.3.6
ruby 1.rb timeout 0.0ms 341.9MB 4833ms 150ms ruby/yjit 3.3.6
ruby 1.rb timeout 0.0ms 764.3MB 5047ms 183ms truffleruby 24.1.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 158ms 0.5ms 68.0MB 200ms 23ms openjdk 23
java 1.java 164ms 12ms 64.9MB 210ms 27ms openjdk 21
java 1-m.java 247ms 12ms 144.7MB 343ms 60ms graal/jvm 17.0.8
java 2.java 260ms 4.2ms 50.2MB 320ms 23ms openjdk 21
java 2.java 264ms 2.9ms 50.4MB 313ms 23ms openjdk 23
java 1.java 288ms 1.8ms 61.6MB 210ms 147ms openjdk/zgc 21
java 2.java 368ms 4.5ms 49.4MB 317ms 130ms openjdk/zgc 21
java 2-m.java 474ms 5.2ms 194.3MB 823ms 70ms graal/jvm 17.0.8
ruby 1-m.rb 1748ms 14ms 492.6MB 2550ms 163ms truffleruby 24.1.1
ruby 1.rb 3501ms 85ms 146.6MB 3403ms 80ms ruby/yjit 3.3.6
ruby 1.rb 4518ms 42ms 146.4MB 4413ms 83ms ruby 3.3.6

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 3200ms 37ms 447.4MB 3680ms 97ms graal/jvm 17.0.8
java 1.java 3677ms 90ms 388.1MB 4527ms 123ms openjdk 23
java 1.java 3700ms 76ms 423.2MB 4547ms 120ms openjdk 21
java 1.java timeout 0.0ms 2012.2MB 4660ms 1187ms openjdk/zgc 21
ruby 1.rb timeout 0.0ms 107.6MB 4920ms 60ms ruby 3.3.6
ruby 1.rb timeout 0.0ms 108.8MB 4927ms 60ms ruby/yjit 3.3.6
ruby 1.rb timeout 0.0ms 469.5MB 13213ms 420ms truffleruby 24.1.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 918ms 18ms 448.8MB 1310ms 90ms graal/jvm 17.0.8
java 1-m.java 1015ms 31ms 352.4MB 1803ms 90ms openjdk 21
java 1-m.java 1038ms 10ms 370.6MB 1787ms 90ms openjdk 23
ruby 1.rb 1669ms 22ms 108.8MB 1587ms 70ms ruby/yjit 3.3.6
ruby 1.rb 1701ms 13ms 108.5MB 1623ms 60ms ruby 3.3.6
ruby 1-m.rb 1776ms 25ms 405.6MB 4673ms 213ms truffleruby 24.1.1
java 1.java 2036ms 48ms 1391.2MB 1720ms 1087ms openjdk/zgc 21

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 3.java timeout 0.0ms 408.6MB 5413ms 107ms graal/jvm 17.0.8
java 3.java timeout 0.0ms 302.3MB 5323ms 63ms openjdk 21
java 3.java timeout 0.0ms 304.9MB 5340ms 50ms openjdk 23
java 3.java timeout 0.0ms 469.2MB 4963ms 290ms openjdk/zgc 21

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 3-m.java 799ms 12ms 133.4MB 1223ms 20ms openjdk 21
java 3-m.java 812ms 4.9ms 182.3MB 1223ms 57ms graal/jvm 17.0.8
java 3-m.java 825ms 12ms 132.6MB 1253ms 30ms openjdk 23
java 3.java 988ms 40ms 134.2MB 1170ms 193ms openjdk/zgc 21

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 2-m.java 1952ms 6.8ms 47.7MB 7430ms 20ms openjdk 21
java 2-m.java 1972ms 7.8ms 48.4MB 7477ms 27ms openjdk 23
java 2-m.java 2092ms 3.1ms 45.2MB 7480ms 157ms openjdk/zgc 21
java 2-m.java 2443ms 23ms 101.0MB 8710ms 50ms graal/jvm 17.0.8
ruby 4.rb timeout 0.0ms 28.1MB 4970ms 20ms ruby 3.3.6
ruby 4.rb timeout 0.0ms 28.3MB 4967ms 17ms ruby/yjit 3.3.6
ruby 4.rb timeout 0.0ms 455.7MB 5143ms 237ms truffleruby 24.1.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 2-m.java 595ms 4.1ms 49.1MB 2077ms 30ms openjdk 23
java 2-m.java 595ms 6.5ms 47.6MB 2087ms 20ms openjdk 21
java 2-m.java 718ms 4.6ms 47.3MB 2043ms 143ms openjdk/zgc 21
java 2-m.java 738ms 17ms 99.2MB 2487ms 33ms graal/jvm 17.0.8
ruby 4.rb 4475ms 23ms 439.6MB 4760ms 200ms truffleruby 24.1.1
ruby 4.rb timeout 0.0ms 28.0MB 4960ms 20ms ruby 3.3.6
ruby 4.rb timeout 0.0ms 28.3MB 4963ms 20ms ruby/yjit 3.3.6

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 2-m.java 238ms 1.1ms 47.6MB 670ms 33ms openjdk 21
java 2-m.java 246ms 2.6ms 48.9MB 710ms 23ms openjdk 23
java 2-m.java 277ms 22ms 96.4MB 793ms 27ms graal/jvm 17.0.8
java 2-m.java 370ms 2.2ms 47.2MB 717ms 143ms openjdk/zgc 21
ruby 4.rb 1235ms 59ms 393.4MB 1547ms 143ms truffleruby 24.1.1
ruby 4.rb timeout 0.0ms 28.1MB 4973ms 13ms ruby 3.3.6
ruby 4.rb timeout 0.0ms 28.3MB 4963ms 20ms ruby/yjit 3.3.6

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 1415ms 30ms 78.4MB 1310ms 93ms ruby/yjit 3.3.6
ruby 1.rb 1783ms 20ms 78.3MB 1687ms 80ms ruby 3.3.6
java 1-m.java 1892ms 152ms 260.4MB 7077ms 137ms openjdk 21
java 1-m.java 2285ms 225ms 241.9MB 8653ms 137ms openjdk 23
java 1-m.java 2814ms 339ms 1205.1MB 8973ms 1127ms openjdk/zgc 21
ruby 1.rb timeout 0.0ms 768.0MB 4493ms 1697ms truffleruby 24.1.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 172ms 3.9ms 40.4MB 120ms 37ms ruby/yjit 3.3.6
ruby 1.rb 197ms 2.8ms 40.1MB 143ms 37ms ruby 3.3.6
java 1-m.java 407ms 11ms 119.1MB 1330ms 63ms openjdk 21
java 1-m.java 425ms 21ms 91.8MB 1383ms 57ms openjdk 23
java 1-m.java 663ms 29ms 209.0MB 1780ms 253ms openjdk/zgc 21
ruby 1.rb timeout 0.0ms 670.5MB 4720ms 1480ms truffleruby 24.1.1