Programming Language and compiler
Benchmarks

Nim VS Java benchmarks

Current benchmark data was generated on Tue Dec 31 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 428ms 6.0ms 574.2MB 503ms 83ms openjdk 21
java 2-m.java 448ms 5.4ms 648.6MB 620ms 120ms graal/jvm 17.0.8
java 2.java 451ms 8.7ms 650.1MB 557ms 87ms openjdk 23
nim 2.nim 741ms 8.3ms 34.9MB 727ms 0ms nim 2.2.0
nim 2.nim 919ms 4.1ms 34.7MB 900ms 7ms nim/clang 2.2.0
java 2.java 1140ms 6.2ms 1085.8MB 540ms 753ms openjdk/zgc 21

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 67ms 0.5ms 5.5MB 57ms 0ms nim 2.2.0
nim 2.nim 85ms 2.2ms 5.8MB 77ms 0ms nim/clang 2.2.0
java 2-m.java 117ms 3.3ms 167.6MB 147ms 30ms openjdk 21
java 2.java 122ms 6.2ms 98.2MB 143ms 33ms openjdk 23
java 2-m.java 153ms 9.8ms 226.4MB 223ms 60ms graal/jvm 17.0.8
java 2.java 289ms 1.8ms 241.5MB 147ms 187ms 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 1839ms 107ms 260.2MB 6950ms 100ms openjdk 21
java 1-m.java 2281ms 118ms 242.8MB 8683ms 107ms openjdk 23
java 1-m.java 2455ms 149ms 1194.8MB 7670ms 997ms openjdk/zgc 21
nim 1.nim timeout 0.0ms 561.4MB 2450ms 2080ms nim 2.2.0
nim 1.nim timeout 0.0ms 570.6MB 2543ms 1987ms nim/clang 2.2.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 393ms 19ms 91.0MB 1263ms 60ms openjdk 23
java 1-m.java 413ms 23ms 131.0MB 1357ms 63ms openjdk 21
java 1-m.java 622ms 34ms 224.1MB 1667ms 243ms openjdk/zgc 21
nim 1.nim 4127ms 12ms 519.8MB 2037ms 1663ms nim/clang 2.2.0
nim 1.nim 4262ms 22ms 519.3MB 2010ms 1827ms nim 2.2.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 174ms 1.9ms 1.5MB 160ms 0ms nim 2.2.0
nim 2.nim 226ms 6.1ms 1.8MB 213ms 0ms nim/clang 2.2.0
java 4.java 415ms 6.6ms 107.3MB 563ms 50ms graal/jvm 17.0.8
java 4.java 431ms 15ms 47.5MB 517ms 20ms openjdk 21
java 4.java 439ms 9.7ms 49.3MB 523ms 17ms openjdk 23
java 4.java 541ms 2.5ms 44.9MB 507ms 133ms openjdk/zgc 21
nim 1.nim 542ms 6.4ms 1.8MB 420ms 110ms nim/clang 2.2.0
nim 1.nim 569ms 4.4ms 1.5MB 470ms 87ms nim 2.2.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 20ms 0.4ms 1.5MB 10ms 0ms nim 2.2.0
nim 2.nim 25ms 1.4ms 1.8MB 17ms 0ms nim/clang 2.2.0
nim 1.nim 58ms 0.7ms 1.8MB 30ms 17ms nim/clang 2.2.0
nim 1.nim 60ms 2.1ms 1.5MB 37ms 10ms nim 2.2.0
java 4.java 116ms 0.7ms 46.4MB 150ms 17ms openjdk 21
java 4.java 117ms 0.9ms 47.5MB 153ms 17ms openjdk 23
java 4-m.java 132ms 7.0ms 97.4MB 180ms 37ms graal/jvm 17.0.8
java 4.java 226ms 9.1ms 43.9MB 153ms 130ms openjdk/zgc 21

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1.0ms 0.0ms 1.6MB 0ms 0ms nim 2.2.0
nim 1.nim 1.1ms 0.1ms 1.8MB 0ms 0ms nim/clang 2.2.0
java 1.java 61ms 1.3ms 58.6MB 60ms 20ms graal/jvm 17.0.8
java 1.java 69ms 2.9ms 44.7MB 66ms 14ms openjdk 23
java 1.java 69ms 1.0ms 43.8MB 72ms 10ms openjdk 21
java 1.java 174ms 5.3ms 44.5MB 80ms 116ms openjdk/zgc 21

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 930ms 5.9ms 99.3MB 260ms 647ms nim 2.2.0
nim 1.nim 934ms 16ms 99.4MB 237ms 673ms nim/clang 2.2.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 152ms 5.5ms 18.1MB 30ms 107ms nim/clang 2.2.0
nim 1.nim 155ms 3.4ms 18.2MB 37ms 100ms nim 2.2.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 105ms 4.1ms 1.6MB 97ms 0ms nim/clang 2.2.0
nim 2.nim 108ms 2.2ms 1.8MB 100ms 0ms nim 2.2.0
nim 1.nim timeout 0.0ms 1.3MB 4987ms 0ms nim 2.2.0
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.2.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 307ms 6.6ms 1.6MB 297ms 0ms nim/clang 2.2.0
nim 2.nim 319ms 3.0ms 1.4MB 310ms 0ms nim 2.2.0
nim 1.nim timeout 0.0ms 1.3MB 4990ms 0ms nim 2.2.0
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.2.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 46ms 1.6ms 1.8MB 40ms 0ms nim/clang 2.2.0
nim 2.nim 49ms 1.9ms 1.5MB 40ms 0ms nim 2.2.0
nim 1.nim 463ms 5.7ms 1.5MB 450ms 0ms nim/clang 2.2.0
nim 1.nim 467ms 5.4ms 1.3MB 453ms 0ms nim 2.2.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 366ms 3.5ms 4.8MB 353ms 0ms nim/clang 2.2.0
nim 1.nim 542ms 1.7ms 4.5MB 533ms 0ms nim 2.2.0
java 1b.java 1088ms 25ms 55.9MB 1183ms 20ms openjdk 23
java 1b.java 1099ms 9.8ms 54.1MB 1203ms 10ms openjdk 21
java 1b.java 1140ms 3.0ms 114.0MB 1380ms 43ms graal/jvm 17.0.8
java 1.java 1186ms 11ms 134.8MB 1287ms 43ms graal/jvm 17.0.8
java 1b.java 1206ms 5.6ms 51.0MB 1187ms 130ms openjdk/zgc 21
java 1a.java 1561ms 13ms 54.8MB 1640ms 30ms openjdk 21
java 1a.java 1568ms 7.1ms 56.5MB 1640ms 33ms openjdk 23
java 1a.java 1588ms 7.8ms 104.9MB 1690ms 37ms graal/jvm 17.0.8
java 1.java 1614ms 17ms 299.9MB 1663ms 50ms openjdk 23
java 1.java 1619ms 19ms 202.2MB 1683ms 37ms openjdk 21
java 1a.java 1691ms 11ms 53.0MB 1660ms 133ms openjdk/zgc 21
java 1.java 2222ms 9.3ms 839.9MB 1657ms 657ms openjdk/zgc 21
java 2.java timeout 0.0ms 680.4MB 5250ms 110ms openjdk 21
java 2.java timeout 0.0ms 804.6MB 5267ms 103ms openjdk 23
java 2.java timeout 0.0ms 3394.0MB 3423ms 1930ms openjdk/zgc 21

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 18ms 0.5ms 1.9MB 10ms 0ms nim/clang 2.2.0
nim 1.nim 25ms 0.8ms 1.8MB 20ms 0ms nim 2.2.0
java 1b-m.java 168ms 7.4ms 51.1MB 263ms 17ms openjdk 23
java 1b-m.java 170ms 15ms 49.4MB 277ms 13ms openjdk 21
java 1a-m.java 174ms 1.1ms 51.2MB 267ms 17ms openjdk 21
java 1-m.java 178ms 1.8ms 82.0MB 243ms 27ms openjdk 21
java 1-m.java 181ms 5.7ms 87.0MB 250ms 27ms openjdk 23
java 1a-m.java 183ms 9.6ms 53.2MB 283ms 17ms openjdk 23
java 1-m.java 188ms 1.2ms 117.5MB 273ms 50ms graal/jvm 17.0.8
java 1a-m.java 205ms 3.9ms 100.0MB 310ms 33ms graal/jvm 17.0.8
java 1b-m.java 215ms 23ms 105.6MB 353ms 43ms graal/jvm 17.0.8
java 1a.java 293ms 9.5ms 49.8MB 270ms 133ms openjdk/zgc 21
java 1b.java 303ms 9.4ms 49.6MB 287ms 133ms openjdk/zgc 21
java 1.java 319ms 10ms 114.2MB 250ms 153ms openjdk/zgc 21
java 2-m.java 516ms 21ms 556.8MB 793ms 73ms openjdk 21
java 2-m.java 532ms 10ms 751.9MB 800ms 93ms openjdk 23
java 2.java 1560ms 7.7ms 1436.9MB 800ms 1043ms openjdk/zgc 21

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 377ms 8.2ms 679.9MB 450ms 77ms openjdk 21
java 1.java 383ms 9.9ms 546.0MB 480ms 80ms openjdk 23
java 1-m.java 408ms 27ms 589.2MB 630ms 77ms graal/jvm 17.0.8
nim 1.nim 520ms 10ms 34.9MB 497ms 7ms nim 2.2.0
nim 1.nim 578ms 6.2ms 34.7MB 553ms 10ms nim/clang 2.2.0
java 1.java 1004ms 16ms 1000.0MB 447ms 697ms openjdk/zgc 21

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 112ms 2.9ms 9.6MB 100ms 0ms nim 2.2.0
nim 1.nim 124ms 3.0ms 9.9MB 110ms 0ms nim/clang 2.2.0
java 1-m.java 153ms 0.5ms 206.4MB 210ms 50ms openjdk 21
java 1-m.java 154ms 0.8ms 158.8MB 213ms 47ms openjdk 23
java 1-m.java 210ms 8.6ms 260.7MB 360ms 47ms graal/jvm 17.0.8
java 1.java 386ms 10ms 343.0MB 210ms 247ms openjdk/zgc 21

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 302ms 2.8ms 1.8MB 290ms 0ms nim 2.2.0
nim 2.nim 330ms 8.5ms 2.0MB 320ms 0ms nim/clang 2.2.0
java 1.java 417ms 2.4ms 45.2MB 450ms 13ms openjdk 21
java 1.java 420ms 6.1ms 48.2MB 450ms 20ms openjdk 23
java 1.java 429ms 7.0ms 85.0MB 457ms 27ms graal/jvm 17.0.8
java 1.java 530ms 6.4ms 46.5MB 450ms 130ms openjdk/zgc 21
java 2.java 1166ms 4.4ms 571.8MB 1293ms 77ms openjdk 21
java 2.java 1187ms 9.7ms 717.8MB 1287ms 90ms openjdk 23
java 2.java 3101ms 57ms 2431.6MB 1560ms 1743ms openjdk/zgc 21

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 32ms 0.5ms 1.8MB 20ms 0ms nim 2.2.0
nim 2.nim 35ms 0.9ms 2.0MB 23ms 0ms nim/clang 2.2.0
java 1.java 111ms 2.5ms 45.2MB 137ms 20ms openjdk 21
java 1.java 112ms 0.7ms 87.3MB 130ms 30ms graal/jvm 17.0.8
java 1.java 114ms 1.2ms 48.5MB 140ms 20ms openjdk 23
java 1.java 230ms 5.1ms 46.5MB 150ms 133ms openjdk/zgc 21
java 2-m.java 289ms 6.3ms 348.4MB 407ms 70ms openjdk 23
java 2-m.java 293ms 18ms 355.0MB 440ms 30ms openjdk 21
java 2.java 658ms 2.3ms 536.9MB 437ms 403ms openjdk/zgc 21

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 252ms 0.5ms 41.5MB 240ms 0ms nim 2.2.0
nim 1.nim 293ms 2.6ms 41.8MB 280ms 0ms nim/clang 2.2.0
java 1.java 367ms 5.0ms 118.1MB 397ms 27ms openjdk 23
java 1.java 367ms 3.8ms 114.6MB 413ms 27ms openjdk 21
java 1.java 535ms 4.6ms 114.6MB 440ms 157ms openjdk/zgc 21
java 1-m.java 654ms 9.2ms 208.3MB 983ms 70ms graal/jvm 17.0.8
java 2.java 734ms 5.2ms 57.1MB 777ms 23ms openjdk 21
java 2.java 750ms 10ms 60.4MB 790ms 20ms openjdk 23
java 2.java 804ms 11ms 53.3MB 740ms 130ms openjdk/zgc 21
java 2-m.java 1277ms 30ms 265.2MB 2290ms 83ms graal/jvm 17.0.8

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 53ms 2.2ms 11.5MB 40ms 0ms nim 2.2.0
nim 1.nim 60ms 3.6ms 11.8MB 50ms 0ms nim/clang 2.2.0
java 1.java 140ms 4.3ms 68.2MB 177ms 17ms openjdk 23
java 1.java 151ms 8.4ms 65.3MB 200ms 17ms openjdk 21
java 1-m.java 210ms 26ms 127.6MB 297ms 50ms graal/jvm 17.0.8
java 2.java 244ms 4.8ms 50.3MB 297ms 20ms openjdk 21
java 2.java 249ms 5.7ms 50.9MB 290ms 20ms openjdk 23
java 1.java 264ms 1.7ms 63.3MB 193ms 133ms openjdk/zgc 21
java 2.java 348ms 11ms 49.4MB 273ms 137ms openjdk/zgc 21
java 2-m.java 489ms 42ms 151.7MB 883ms 47ms graal/jvm 17.0.8

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1541ms 6.9ms 152.3MB 1513ms 13ms nim/clang 2.2.0
nim 1.nim 1567ms 8.6ms 151.5MB 1530ms 23ms nim 2.2.0
java 3.java timeout 0.0ms 501.9MB 5477ms 97ms graal/jvm 17.0.8
java 3.java timeout 0.0ms 328.2MB 5333ms 50ms openjdk 21
java 3.java timeout 0.0ms 350.8MB 5360ms 57ms openjdk 23
java 3.java timeout 0.0ms 488.6MB 4940ms 307ms openjdk/zgc 21

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 162ms 0.2ms 17.6MB 143ms 3ms nim/clang 2.2.0
nim 1.nim 163ms 1.8ms 17.4MB 153ms 0ms nim 2.2.0
java 3-m.java 749ms 10ms 130.7MB 1110ms 37ms openjdk 21
java 3-m.java 765ms 72ms 178.4MB 1157ms 47ms graal/jvm 17.0.8
java 3-m.java 770ms 25ms 134.3MB 1160ms 43ms openjdk 23
java 3.java 902ms 21ms 136.0MB 1070ms 167ms 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 1867ms 20ms 47.6MB 7143ms 20ms openjdk 21
java 2-m.java 1877ms 26ms 49.0MB 7130ms 20ms openjdk 23
java 2-m.java 1981ms 11ms 45.4MB 7137ms 137ms openjdk/zgc 21
java 2-m.java 2318ms 11ms 100.9MB 8233ms 47ms graal/jvm 17.0.8
nim 1.nim 3383ms 20ms 1.6MB 3370ms 0ms nim/clang 2.2.0
nim 1.nim 3439ms 35ms 1.4MB 3430ms 0ms nim 2.2.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 2-m.java 557ms 2.8ms 48.4MB 1953ms 27ms openjdk 23
java 2-m.java 558ms 2.6ms 47.5MB 1963ms 23ms openjdk 21
java 2-m.java 676ms 7.0ms 45.6MB 1957ms 140ms openjdk/zgc 21
java 2-m.java 688ms 5.7ms 98.9MB 2293ms 57ms graal/jvm 17.0.8
nim 1.nim 848ms 4.3ms 1.5MB 837ms 0ms nim/clang 2.2.0
nim 1.nim 860ms 8.6ms 1.3MB 853ms 0ms nim 2.2.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 214ms 1.3ms 1.3MB 203ms 0ms nim 2.2.0
nim 1.nim 217ms 5.1ms 1.5MB 207ms 0ms nim/clang 2.2.0
java 2-m.java 229ms 5.7ms 48.4MB 670ms 23ms openjdk 23
java 2-m.java 238ms 14ms 47.6MB 693ms 20ms openjdk 21
java 2-m.java 281ms 23ms 101.8MB 823ms 40ms graal/jvm 17.0.8
java 2-m.java 346ms 3.4ms 47.1MB 667ms 133ms openjdk/zgc 21