Programming Language and compiler
Benchmarks

Javascript VS Java 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
java 2.java 460ms 10ms 573.4MB 563ms 83ms openjdk 21
java 2-m.java 468ms 7.1ms 643.1MB 657ms 120ms graal/jvm 17.0.8
java 2.java 476ms 4.7ms 636.3MB 577ms 107ms openjdk 23
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
java 2.java 1176ms 4.0ms 1040.7MB 573ms 763ms openjdk/zgc 21

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
java 2-m.java 124ms 0.8ms 96.2MB 163ms 30ms openjdk 23
java 2.java 125ms 2.0ms 167.1MB 157ms 30ms openjdk 21
javascript 1.js 127ms 1.5ms 81.2MB 130ms 20ms node 24.2.0
java 2-m.java 147ms 1.3ms 215.1MB 227ms 50ms graal/jvm 17.0.8
java 2.java 313ms 2.8ms 241.6MB 160ms 207ms 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 1629ms 9.3ms 189.9MB 1603ms 103ms node 24.2.0
java 1-m.java 2071ms 296ms 257.7MB 7843ms 130ms openjdk 21
java 1-m.java 2461ms 69ms 243.6MB 9343ms 137ms openjdk 23
javascript 1.js 2507ms 85ms 101.4MB 2553ms 67ms bun 1.2.17
java 1-m.java 3046ms 337ms 1240.3MB 9980ms 1080ms openjdk/zgc 21

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 158ms 2.0ms 75.4MB 140ms 23ms node 24.2.0
javascript 1.js 200ms 4.1ms 86.8MB 237ms 30ms bun 1.2.17
java 1-m.java 436ms 14ms 92.6MB 1433ms 47ms openjdk 23
java 1-m.java 470ms 21ms 119.1MB 1560ms 67ms openjdk 21
java 1-m.java 648ms 7.9ms 215.5MB 1700ms 267ms openjdk/zgc 21

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
java 1-m.java 603ms 7.0ms 352.5MB 1167ms 110ms graal/jvm 17.0.8
java 1-m.java 640ms 63ms 267.1MB 1717ms 77ms openjdk 21
java 1-m.java 644ms 46ms 250.7MB 1723ms 73ms openjdk 23
java 1-m.java 975ms 34ms 536.4MB 1673ms 433ms openjdk/zgc 21

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
java 1-m.java 295ms 6.5ms 226.0MB 583ms 70ms graal/jvm 17.0.8
java 1-m.java 347ms 33ms 178.0MB 950ms 47ms openjdk 21
java 1-m.java 377ms 31ms 111.4MB 1040ms 47ms openjdk 23
java 1-m.java 499ms 7.7ms 216.4MB 973ms 213ms openjdk/zgc 21
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
java 1.java 64ms 2.4ms 52.4MB 66ms 18ms graal/jvm 17.0.8
java 1.java 72ms 4.4ms 44.7MB 78ms 16ms openjdk 23
java 1.java 73ms 4.9ms 43.8MB 76ms 20ms openjdk 21
java 1.java 192ms 4.4ms 42.8MB 80ms 136ms 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 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

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

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
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
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
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
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

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 399ms 2.4ms 541.9MB 497ms 87ms openjdk 23
java 1.java 408ms 5.6ms 680.1MB 483ms 90ms openjdk 21
java 1-m.java 440ms 67ms 657.5MB 653ms 120ms graal/jvm 17.0.8
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
java 1.java 1057ms 29ms 961.6MB 450ms 737ms openjdk/zgc 21

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
java 1-m.java 162ms 3.2ms 158.1MB 240ms 33ms openjdk 23
java 1-m.java 165ms 0.9ms 206.3MB 233ms 43ms openjdk 21
java 1-m.java 213ms 5.0ms 253.5MB 343ms 70ms graal/jvm 17.0.8
java 1.java 415ms 9.6ms 341.9MB 217ms 273ms openjdk/zgc 21

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 441ms 5.0ms 45.2MB 473ms 17ms openjdk 21
java 1.java 449ms 1.1ms 47.9MB 480ms 20ms openjdk 23
java 1.java 450ms 4.6ms 81.4MB 480ms 23ms graal/jvm 17.0.8
javascript 6.js 456ms 0.7ms 59.0MB 450ms 0ms node 24.2.0
java 1.java 573ms 3.6ms 44.8MB 497ms 140ms openjdk/zgc 21
javascript 6.js 599ms 2.6ms 44.9MB 603ms 7ms bun 1.2.17
java 2.java 1253ms 11ms 668.0MB 1373ms 93ms openjdk 21
java 2.java 1255ms 4.2ms 766.6MB 1373ms 100ms openjdk 23
java 2.java 3285ms 47ms 2400.8MB 1683ms 1837ms openjdk/zgc 21

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
java 1.java 118ms 2.7ms 81.6MB 150ms 27ms graal/jvm 17.0.8
java 1.java 124ms 1.2ms 48.5MB 157ms 23ms openjdk 23
java 1.java 135ms 27ms 45.4MB 153ms 13ms openjdk 21
java 1.java 249ms 2.6ms 44.8MB 167ms 143ms openjdk/zgc 21
java 2-m.java 295ms 10ms 352.2MB 433ms 50ms openjdk 21
java 2-m.java 313ms 6.2ms 395.9MB 450ms 63ms openjdk 23
java 2.java 705ms 8.5ms 535.8MB 483ms 417ms openjdk/zgc 21

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
java 1.java 3227ms 47ms 445.3MB 3660ms 107ms graal/jvm 17.0.8
java 1.java 3739ms 47ms 425.9MB 4580ms 113ms openjdk 21
java 1.java 3759ms 36ms 413.3MB 4657ms 123ms openjdk 23
javascript 3.js 4612ms 24ms 122.4MB 4567ms 43ms node 24.2.0
java 1.java timeout 0.0ms 1935.2MB 4677ms 1170ms openjdk/zgc 21

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 900ms 18ms 443.2MB 1240ms 93ms graal/jvm 17.0.8
java 1-m.java 983ms 6.0ms 389.1MB 1830ms 93ms openjdk 21
java 1-m.java 1002ms 11ms 420.7MB 1840ms 107ms openjdk 23
javascript 3.js 1016ms 4.2ms 74.0MB 997ms 17ms node 24.2.0
java 1.java 2053ms 7.5ms 1352.6MB 1690ms 1090ms 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 1986ms 16ms 47.3MB 7597ms 23ms openjdk 21
java 2-m.java 1998ms 10ms 48.7MB 7633ms 23ms openjdk 23
java 2-m.java 2113ms 11ms 45.6MB 7603ms 150ms openjdk/zgc 21
javascript 6-m.js 2170ms 4.5ms 118.6MB 8280ms 63ms node 24.2.0
java 2-m.java 2529ms 6.7ms 95.2MB 9463ms 47ms 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 602ms 2.8ms 48.8MB 2140ms 20ms openjdk 23
java 2-m.java 605ms 4.7ms 47.7MB 2143ms 23ms openjdk 21
javascript 6-m.js 654ms 2.1ms 118.9MB 2317ms 63ms node 24.2.0
java 2-m.java 745ms 4.0ms 45.6MB 2200ms 147ms openjdk/zgc 21
java 2-m.java 772ms 10ms 94.7MB 2710ms 40ms 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 247ms 2.2ms 47.7MB 747ms 20ms openjdk 21
java 2-m.java 257ms 13ms 48.3MB 773ms 20ms openjdk 23
javascript 6-m.js 271ms 4.8ms 115.9MB 830ms 53ms node 24.2.0
java 2-m.java 294ms 26ms 93.1MB 890ms 33ms graal/jvm 17.0.8
java 2-m.java 386ms 9.7ms 45.6MB 763ms 153ms openjdk/zgc 21