Programming Language and compiler
Benchmarks

V VS Java benchmarks

Current benchmark data was generated on Sun Jul 13 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 455ms 1.0ms 575.9MB 557ms 83ms openjdk 21
java 2-m.java 469ms 4.8ms 641.2MB 673ms 113ms graal/jvm 17.0.8
java 2.java 473ms 8.9ms 642.1MB 573ms 103ms openjdk 23
v 1.v 825ms 11ms 28.8MB 810ms 3ms v/clang+gc 0.4.11
java 2.java 1191ms 22ms 1054.4MB 577ms 773ms openjdk/zgc 21
v 1.v 2174ms 25ms 2086.6MB 1273ms 890ms v/clang 0.4.11

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 72ms 2.2ms 4.6MB 60ms 0ms v/clang+gc 0.4.11
java 2-m.java 125ms 0.6ms 167.1MB 157ms 33ms openjdk 21
java 2.java 129ms 5.0ms 96.0MB 167ms 27ms openjdk 23
java 2-m.java 151ms 3.3ms 227.2MB 220ms 63ms graal/jvm 17.0.8
v 1.v 206ms 2.7ms 197.9MB 117ms 73ms v/clang 0.4.11
java 2.java 305ms 2.0ms 241.5MB 157ms 197ms openjdk/zgc 21

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 2305ms 190ms 264.5MB 8783ms 140ms openjdk 21
java 1-m.java 2419ms 254ms 243.1MB 9207ms 137ms openjdk 23
java 1-m.java 2938ms 109ms 1226.1MB 9570ms 1070ms openjdk/zgc 21
v 1.v timeout 0.0ms 18.1MB 8350ms 10927ms v/clang 0.4.11
v 1.v timeout 0.0ms 18.8MB 8527ms 10727ms v/clang+gc 0.4.11

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 464ms 5.9ms 96.8MB 1527ms 67ms openjdk 23
java 1-m.java 473ms 16ms 121.6MB 1597ms 57ms openjdk 21
java 1-m.java 654ms 16ms 213.4MB 1803ms 237ms openjdk/zgc 21
v 1-m.v 1386ms 26ms 10.4MB 2293ms 2940ms v/clang+gc 0.4.11
v 1-m.v 1440ms 73ms 10.0MB 2367ms 3080ms v/clang 0.4.11

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 555ms 15ms 273.6MB 1557ms 70ms openjdk 21
java 1-m.java 623ms 13ms 381.7MB 1183ms 123ms graal/jvm 17.0.8
java 1-m.java 641ms 58ms 267.1MB 1720ms 63ms openjdk 23
java 1-m.java 950ms 37ms 500.2MB 1577ms 403ms openjdk/zgc 21
v 1.v timeout 0.0ms 8.0MB 4990ms 0ms v/clang+gc 0.4.11

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 305ms 11ms 226.1MB 607ms 67ms graal/jvm 17.0.8
java 1-m.java 355ms 28ms 177.9MB 977ms 43ms openjdk 21
java 1-m.java 375ms 23ms 127.9MB 1017ms 50ms openjdk 23
java 1-m.java 508ms 21ms 215.5MB 1010ms 213ms openjdk/zgc 21
v 1.v timeout 0.0ms 4.5MB 4990ms 0ms v/clang+gc 0.4.11

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 901ms 6.8ms 97.1MB 3320ms 40ms graal/jvm 17.0.8
java 1-m.java 983ms 3.0ms 48.4MB 3663ms 17ms openjdk 21
java 1-m.java 987ms 5.3ms 50.2MB 3643ms 20ms openjdk 23
java 1-m.java 1036ms 2.8ms 45.8MB 3383ms 143ms openjdk/zgc 21
v 1.v 2199ms 24ms 1.9MB 2190ms 0ms v/clang+gc 0.4.11
v 1.v 2258ms 6.9ms 1.1MB 2250ms 0ms v/clang 0.4.11

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 183ms 8.1ms 48.2MB 497ms 20ms openjdk 21
v 1.v 186ms 0.8ms 1.9MB 180ms 0ms v/clang+gc 0.4.11
java 1-m.java 188ms 2.5ms 50.3MB 487ms 23ms openjdk 23
v 1.v 192ms 0.9ms 1.1MB 183ms 0ms v/clang 0.4.11
java 1-m.java 205ms 0.3ms 95.9MB 573ms 40ms graal/jvm 17.0.8
java 1-m.java 299ms 1.9ms 45.9MB 493ms 137ms openjdk/zgc 21

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 4.java 448ms 4.7ms 101.5MB 633ms 37ms graal/jvm 17.0.8
java 4.java 458ms 6.9ms 47.4MB 543ms 17ms openjdk 21
java 4.java 464ms 8.8ms 49.1MB 557ms 20ms openjdk 23
v 1.v 503ms 5.1ms 1.3MB 497ms 0ms v/clang 0.4.11
v 1.v 522ms 1.0ms 2.1MB 510ms 0ms v/clang+gc 0.4.11
java 4.java 566ms 2.0ms 45.1MB 530ms 140ms openjdk/zgc 21

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 54ms 1.8ms 1.3MB 47ms 0ms v/clang 0.4.11
v 1.v 56ms 2.5ms 2.1MB 50ms 0ms v/clang+gc 0.4.11
java 4.java 120ms 2.9ms 46.6MB 163ms 13ms openjdk 21
java 4.java 127ms 4.2ms 48.0MB 173ms 17ms openjdk 23
java 4-m.java 131ms 4.7ms 94.1MB 183ms 37ms graal/jvm 17.0.8
java 4.java 242ms 2.2ms 43.9MB 163ms 137ms openjdk/zgc 21

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 1.0ms 0.0ms 1.4MB 0ms 0ms v/clang 0.4.11
v 1.v 1.3ms 0.0ms 1.9MB 0ms 0ms v/clang+gc 0.4.11
java 1.java 62ms 2.2ms 52.9MB 66ms 18ms graal/jvm 17.0.8
java 1.java 67ms 7.0ms 43.8MB 74ms 18ms openjdk 21
java 1.java 71ms 5.3ms 44.7MB 74ms 16ms openjdk 23
java 1.java 193ms 7.2ms 42.8MB 82ms 136ms openjdk/zgc 21

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 259ms 3.4ms 2.1MB 250ms 0ms v/clang+gc 0.4.11
v 1.v 267ms 5.4ms 1.3MB 257ms 0ms v/clang 0.4.11

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 770ms 4.1ms 2.1MB 760ms 0ms v/clang+gc 0.4.11
v 1.v 792ms 5.6ms 1.3MB 787ms 0ms v/clang 0.4.11

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 91ms 2.0ms 1.3MB 83ms 0ms v/clang 0.4.11
v 1.v 100ms 1.6ms 2.1MB 93ms 0ms v/clang+gc 0.4.11

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 312ms 1.5ms 1.6MB 300ms 0ms v/clang 0.4.11
v 1.v 312ms 1.3ms 2.3MB 300ms 0ms v/clang+gc 0.4.11
java 1.java 442ms 1.0ms 45.1MB 480ms 17ms openjdk 21
java 1.java 444ms 3.9ms 48.3MB 480ms 23ms openjdk 23
java 1.java 454ms 0.5ms 81.1MB 490ms 30ms graal/jvm 17.0.8
java 1.java 563ms 6.0ms 44.7MB 483ms 133ms openjdk/zgc 21
java 2.java 1235ms 3.8ms 571.4MB 1363ms 87ms openjdk 21
java 2.java 1310ms 91ms 794.4MB 1433ms 93ms openjdk 23
java 2.java 3270ms 60ms 2461.0MB 1670ms 1817ms openjdk/zgc 21

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 33ms 0.0ms 1.6MB 30ms 0ms v/clang 0.4.11
v 1.v 34ms 0.2ms 2.3MB 27ms 0ms v/clang+gc 0.4.11
java 1.java 116ms 4.0ms 45.4MB 143ms 23ms openjdk 21
java 1.java 119ms 2.3ms 81.5MB 150ms 27ms graal/jvm 17.0.8
java 1.java 120ms 2.0ms 47.9MB 157ms 13ms openjdk 23
java 1.java 240ms 5.7ms 44.7MB 153ms 140ms openjdk/zgc 21
java 2-m.java 294ms 9.4ms 366.4MB 437ms 50ms openjdk 21
java 2-m.java 317ms 4.3ms 397.4MB 450ms 67ms openjdk 23
java 2.java 674ms 5.7ms 533.2MB 460ms 400ms openjdk/zgc 21

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 321ms 15ms 40.3MB 307ms 0ms v/clang 0.4.11
v 1.v 323ms 7.3ms 41.2MB 310ms 0ms v/clang+gc 0.4.11
v 2.v 329ms 1.3ms 6.1MB 320ms 0ms v/clang 0.4.11
v 2.v 331ms 4.8ms 6.9MB 323ms 0ms v/clang+gc 0.4.11
java 1.java 390ms 0.8ms 118.4MB 430ms 23ms openjdk 23
java 1.java 391ms 5.0ms 115.1MB 447ms 23ms openjdk 21
java 1.java 561ms 6.7ms 112.6MB 463ms 160ms openjdk/zgc 21
java 1-m.java 626ms 57ms 271.3MB 907ms 73ms graal/jvm 17.0.8
java 2.java 779ms 2.8ms 57.2MB 837ms 23ms openjdk 21
java 2.java 783ms 1.4ms 60.2MB 830ms 20ms openjdk 23
java 2.java 853ms 0.8ms 53.3MB 780ms 147ms openjdk/zgc 21
java 2-m.java 1413ms 80ms 290.5MB 2513ms 117ms graal/jvm 17.0.8

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 61ms 2.9ms 11.9MB 50ms 0ms v/clang+gc 0.4.11
v 1.v 65ms 0.6ms 11.0MB 57ms 0ms v/clang 0.4.11
v 2.v 82ms 1.5ms 3.1MB 73ms 0ms v/clang+gc 0.4.11
v 2.v 83ms 2.1ms 2.4MB 73ms 0ms v/clang 0.4.11
java 1.java 152ms 2.2ms 64.8MB 200ms 20ms openjdk 21
java 1.java 154ms 3.8ms 68.1MB 203ms 20ms openjdk 23
java 1-m.java 212ms 3.8ms 133.8MB 293ms 47ms graal/jvm 17.0.8
java 2.java 262ms 8.9ms 50.3MB 310ms 20ms openjdk 23
java 2.java 263ms 4.7ms 49.3MB 330ms 20ms openjdk 21
java 1.java 278ms 4.5ms 61.5MB 197ms 143ms openjdk/zgc 21
java 2.java 368ms 3.9ms 47.5MB 307ms 143ms openjdk/zgc 21
java 2-m.java 483ms 1.9ms 140.6MB 857ms 63ms graal/jvm 17.0.8

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 3212ms 15ms 444.6MB 3627ms 110ms graal/jvm 17.0.8
v 2.v 3245ms 96ms 4.0MB 3223ms 10ms v/clang+gc 0.4.11
java 1.java 3669ms 54ms 426.1MB 4610ms 110ms openjdk 21
java 1.java 3752ms 19ms 501.5MB 4603ms 120ms openjdk 23
java 1.java timeout 0.0ms 1758.6MB 4670ms 1183ms openjdk/zgc 21

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 2.v 786ms 13ms 3.1MB 773ms 0ms v/clang+gc 0.4.11
java 1.java 896ms 13ms 444.3MB 1243ms 87ms graal/jvm 17.0.8
java 1-m.java 1001ms 28ms 353.6MB 1797ms 90ms openjdk 21
java 1-m.java 1015ms 31ms 423.3MB 1787ms 93ms openjdk 23
java 1.java 2003ms 34ms 1358.4MB 1703ms 1060ms 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 407.7MB 5397ms 93ms graal/jvm 17.0.8
java 3.java timeout 0.0ms 302.1MB 5333ms 53ms openjdk 21
java 3.java timeout 0.0ms 304.8MB 5320ms 67ms openjdk 23
java 3.java timeout 0.0ms 471.1MB 4957ms 303ms openjdk/zgc 21
v 1.v timeout 0.0ms 83.0MB 4980ms 10ms v/clang+gc 0.4.11

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 3-m.java 782ms 10ms 175.4MB 1160ms 47ms graal/jvm 17.0.8
java 3-m.java 806ms 18ms 130.9MB 1183ms 33ms openjdk 21
java 3-m.java 814ms 8.2ms 132.4MB 1230ms 30ms openjdk 23
java 3.java 963ms 9.6ms 133.9MB 1133ms 177ms openjdk/zgc 21
v 1.v 3628ms 16ms 26.0MB 3613ms 0ms v/clang+gc 0.4.11

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 2-m.java 1988ms 6.6ms 47.8MB 7613ms 23ms openjdk 21
java 2-m.java 1996ms 1.7ms 48.5MB 7643ms 30ms openjdk 23
java 2-m.java 2127ms 4.4ms 45.5MB 7673ms 153ms openjdk/zgc 21
java 2-m.java 2508ms 27ms 94.1MB 9400ms 37ms graal/jvm 17.0.8
v 1.v timeout 0.0ms 1.6MB 4990ms 0ms v/clang 0.4.11
v 1.v timeout 0.0ms 2.8MB 4990ms 0ms v/clang+gc 0.4.11

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 2-m.java 602ms 2.3ms 47.5MB 2150ms 17ms openjdk 21
java 2-m.java 612ms 9.6ms 48.6MB 2137ms 20ms openjdk 23
java 2-m.java 737ms 8.8ms 45.3MB 2157ms 143ms openjdk/zgc 21
java 2-m.java 761ms 18ms 94.5MB 2673ms 37ms graal/jvm 17.0.8
v 1.v 1289ms 3.0ms 1.5MB 1280ms 0ms v/clang 0.4.11
v 1.v 1327ms 5.5ms 2.5MB 1317ms 0ms v/clang+gc 0.4.11

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 2-m.java 253ms 12ms 47.6MB 770ms 17ms openjdk 21
java 2-m.java 255ms 4.3ms 48.5MB 763ms 20ms openjdk 23
v 1.v 325ms 1.8ms 1.5MB 317ms 0ms v/clang 0.4.11
java 2-m.java 328ms 5.5ms 93.3MB 1020ms 40ms graal/jvm 17.0.8
v 1.v 335ms 1.1ms 2.4MB 327ms 0ms v/clang+gc 0.4.11
java 2-m.java 381ms 12ms 45.7MB 770ms 147ms openjdk/zgc 21