Programming Language and compiler
Benchmarks

Javascript VS Java 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
java 2.java 460ms 9.2ms 574.1MB 553ms 83ms openjdk 21
java 2.java 470ms 8.8ms 624.4MB 577ms 97ms openjdk 23
java 2-m.java 480ms 9.9ms 640.7MB 680ms 110ms graal/jvm 17.0.8
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
java 2.java 1176ms 13ms 1047.1MB 593ms 757ms openjdk/zgc 21

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
java 2.java 120ms 4.9ms 168.1MB 150ms 30ms openjdk 21
java 2-m.java 123ms 0.5ms 97.0MB 173ms 23ms openjdk 23
javascript 1.js 128ms 0.9ms 81.6MB 127ms 23ms node 24.4.1
java 2-m.java 144ms 3.8ms 224.3MB 210ms 57ms graal/jvm 17.0.8
java 2.java 304ms 3.3ms 241.5MB 163ms 190ms openjdk/zgc 21

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 1682ms 32ms 189.9MB 1653ms 93ms node 24.4.1
java 1-m.java 2236ms 124ms 258.1MB 8487ms 130ms openjdk 21
java 1-m.java 2303ms 130ms 243.3MB 8747ms 120ms openjdk 23
javascript 1.js 2481ms 58ms 102.1MB 2540ms 57ms bun 1.2.19
java 1-m.java 2997ms 156ms 1243.2MB 9807ms 1063ms openjdk/zgc 21

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 157ms 2.7ms 75.6MB 147ms 23ms node 24.4.1
javascript 1.js 198ms 3.5ms 86.8MB 240ms 33ms bun 1.2.19
java 1-m.java 471ms 21ms 93.0MB 1567ms 57ms openjdk 23
java 1-m.java 471ms 2.6ms 127.2MB 1580ms 67ms openjdk 21
java 1-m.java 673ms 14ms 221.9MB 1820ms 257ms openjdk/zgc 21

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
java 1-m.java 602ms 6.6ms 411.7MB 1153ms 120ms graal/jvm 17.0.8
java 1-m.java 633ms 49ms 246.2MB 1660ms 67ms openjdk 23
java 1-m.java 649ms 44ms 264.8MB 1710ms 73ms openjdk 21
java 1-m.java 984ms 28ms 530.2MB 1703ms 417ms openjdk/zgc 21

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
java 1-m.java 306ms 11ms 225.9MB 603ms 67ms graal/jvm 17.0.8
java 1-m.java 335ms 14ms 179.8MB 920ms 50ms openjdk 21
java 1-m.java 367ms 12ms 110.6MB 1010ms 40ms openjdk 23
java 1-m.java 491ms 3.2ms 216.5MB 947ms 217ms openjdk/zgc 21
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
java 1.java 62ms 1.4ms 52.9MB 64ms 20ms graal/jvm 17.0.8
java 1.java 69ms 4.7ms 43.9MB 78ms 10ms openjdk 21
java 1.java 73ms 1.9ms 44.7MB 74ms 16ms openjdk 23
java 1.java 186ms 3.9ms 42.9MB 82ms 132ms openjdk/zgc 21

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

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

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
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
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
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
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

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 397ms 3.2ms 536.3MB 483ms 97ms openjdk 23
java 1.java 416ms 5.0ms 677.5MB 473ms 100ms openjdk 21
java 1-m.java 424ms 8.3ms 643.7MB 600ms 123ms graal/jvm 17.0.8
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
java 1.java 1020ms 3.1ms 946.5MB 477ms 693ms openjdk/zgc 21

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
java 1-m.java 163ms 2.8ms 158.5MB 247ms 40ms openjdk 23
java 1-m.java 166ms 1.2ms 207.9MB 240ms 40ms openjdk 21
java 1-m.java 210ms 6.3ms 253.8MB 347ms 60ms graal/jvm 17.0.8
java 1.java 404ms 6.6ms 341.9MB 220ms 260ms openjdk/zgc 21

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 442ms 1.6ms 81.4MB 473ms 23ms graal/jvm 17.0.8
java 1.java 445ms 1.9ms 47.7MB 480ms 17ms openjdk 23
java 1.java 446ms 15ms 45.2MB 487ms 13ms openjdk 21
javascript 6.js 460ms 3.5ms 59.2MB 447ms 10ms node 24.4.1
java 1.java 567ms 4.2ms 44.9MB 490ms 140ms openjdk/zgc 21
javascript 6.js 596ms 2.0ms 43.5MB 597ms 10ms bun 1.2.19
java 2.java 1238ms 17ms 608.0MB 1377ms 77ms openjdk 21
java 2.java 1243ms 5.5ms 744.5MB 1360ms 97ms openjdk 23
java 2.java 3248ms 81ms 2438.6MB 1660ms 1800ms openjdk/zgc 21

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
java 1.java 116ms 4.3ms 45.3MB 153ms 20ms openjdk 21
java 1.java 121ms 0.2ms 47.8MB 153ms 17ms openjdk 23
java 1-m.java 122ms 8.7ms 81.5MB 153ms 33ms graal/jvm 17.0.8
java 1.java 247ms 2.0ms 44.8MB 173ms 140ms openjdk/zgc 21
java 2-m.java 291ms 5.9ms 373.0MB 427ms 53ms openjdk 21
java 2-m.java 307ms 7.7ms 397.4MB 443ms 67ms openjdk 23
java 2.java 671ms 7.7ms 522.5MB 477ms 387ms openjdk/zgc 21

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
java 1.java 3168ms 8.2ms 444.5MB 3577ms 97ms graal/jvm 17.0.8
java 1.java 3667ms 34ms 351.6MB 4527ms 113ms openjdk 21
java 1.java 3722ms 53ms 381.7MB 4533ms 113ms openjdk 23
javascript 3.js 4600ms 4.2ms 123.2MB 4550ms 50ms node 24.4.1
java 1.java timeout 0.0ms 1806.3MB 4663ms 1183ms openjdk/zgc 21

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 882ms 6.0ms 444.1MB 1227ms 87ms graal/jvm 17.0.8
java 1-m.java 1009ms 31ms 430.6MB 1757ms 100ms openjdk 23
javascript 3.js 1014ms 1.7ms 73.8MB 993ms 17ms node 24.4.1
java 1-m.java 1016ms 30ms 351.1MB 1783ms 83ms openjdk 21
java 1.java 1974ms 2.9ms 1319.5MB 1730ms 1020ms 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 1989ms 3.1ms 47.7MB 7617ms 27ms openjdk 21
java 2-m.java 1990ms 13ms 48.5MB 7613ms 23ms openjdk 23
java 2-m.java 2120ms 13ms 45.5MB 7643ms 150ms openjdk/zgc 21
javascript 6-m.js 2185ms 26ms 119.6MB 8307ms 67ms node 24.4.1
java 2-m.java 2517ms 4.4ms 95.1MB 9440ms 40ms graal/jvm 17.0.8

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 2-m.java 605ms 4.4ms 47.8MB 2147ms 20ms openjdk 21
java 2-m.java 612ms 11ms 48.8MB 2177ms 23ms openjdk 23
javascript 6-m.js 660ms 6.2ms 117.7MB 2340ms 50ms node 24.4.1
java 2-m.java 724ms 6.4ms 45.4MB 2113ms 143ms openjdk/zgc 21
java 2-m.java 765ms 8.2ms 94.9MB 2697ms 33ms graal/jvm 17.0.8

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 2-m.java 252ms 7.4ms 47.9MB 763ms 17ms openjdk 21
java 2-m.java 258ms 6.1ms 48.6MB 780ms 17ms openjdk 23
javascript 6-m.js 273ms 4.5ms 114.4MB 847ms 47ms node 24.4.1
java 2-m.java 303ms 24ms 93.3MB 927ms 37ms graal/jvm 17.0.8
java 2-m.java 376ms 7.1ms 45.5MB 770ms 140ms openjdk/zgc 21