Nim VS Java benchmarks

Current benchmark data was generated on Wed May 25 2022, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][2 cores] Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz (Model 85)

* -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 763ms 6.3ms 409.6MB 760ms 123ms openjdk 19
java 2.java 804ms 74ms 601.4MB 767ms 147ms openjdk 18.0.1
java 2.java 1100ms 12ms 681.2MB 903ms 160ms graal/jvm 17.0.3
java 2.java 1391ms 53ms 1047.4MB 987ms 620ms openjdk/zgc 18.0.1
nim 2.nim 3281ms 50ms 35.2MB 3253ms 13ms nim 1.6.6
nim 2.nim 3344ms 37ms 34.2MB 3320ms 3ms nim/clang 1.6.6

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 2.java 167ms 8.8ms 106.6MB 153ms 40ms openjdk 18.0.1
java 2.java 178ms 3.6ms 107.5MB 177ms 33ms openjdk 19
nim 2.nim 288ms 21ms 5.7MB 273ms 0ms nim/clang 1.6.6
nim 2.nim 304ms 1.5ms 5.5MB 290ms 0ms nim 1.6.6
java 2.java 328ms 2.3ms 235.7MB 187ms 167ms openjdk/zgc 18.0.1
java 2.java 518ms 12ms 169.0MB 247ms 50ms graal/jvm 17.0.3

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java timeout 0.0ms 0.0MB 0ms 0ms loom 19
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.6
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.6

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 772ms 131ms 108.2MB 1330ms 67ms loom 19
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.6
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.6

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 733ms 22ms 216.6MB 1247ms 73ms openjdk 18.0.1
java 1-m.java 896ms 104ms 201.0MB 1567ms 90ms openjdk 19
java 1-m.java 1053ms 62ms 470.2MB 1490ms 343ms openjdk/zgc 18.0.1
java 1.java 1103ms 21ms 287.6MB 1343ms 123ms graal/jvm 17.0.3
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.6
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.6

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 399ms 27ms 110.3MB 660ms 27ms openjdk 18.0.1
java 1-m.java 437ms 8.2ms 115.3MB 727ms 30ms openjdk 19
java 1-m.java 525ms 9.3ms 212.9MB 710ms 180ms openjdk/zgc 18.0.1
java 1.java 726ms 13ms 187.2MB 630ms 87ms graal/jvm 17.0.3
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.6
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.6

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 235ms 16ms 0.7MB 223ms 0ms nim 1.6.6
nim 2.nim 284ms 20ms 0.9MB 270ms 0ms nim/clang 1.6.6
java 4.java 455ms 11ms 40.1MB 523ms 3ms openjdk 18.0.1
java 4.java 460ms 2.4ms 39.3MB 523ms 17ms openjdk 19
java 4.java 501ms 5.3ms 38.8MB 503ms 63ms openjdk/zgc 18.0.1
nim 1.nim 642ms 2.5ms 1.0MB 560ms 70ms nim/clang 1.6.6
nim 1.nim 686ms 49ms 0.7MB 600ms 70ms nim 1.6.6
java 4.java 846ms 29ms 123.5MB 837ms 40ms graal/jvm 17.0.3

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 24ms 0.5ms 0.7MB 13ms 0ms nim 1.6.6
nim 2.nim 28ms 0.1ms 0.9MB 20ms 0ms nim/clang 1.6.6
nim 1.nim 71ms 4.9ms 0.7MB 57ms 0ms nim 1.6.6
nim 1.nim 76ms 1.0ms 0.9MB 57ms 3ms nim/clang 1.6.6
java 4.java 138ms 1.8ms 39.9MB 160ms 17ms openjdk 18.0.1
java 4.java 146ms 4.7ms 38.7MB 177ms 7ms openjdk 19
java 4.java 192ms 4.3ms 38.5MB 163ms 60ms openjdk/zgc 18.0.1
java 4.java 470ms 8.4ms 87.7MB 187ms 23ms graal/jvm 17.0.3

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1.5ms 0.3ms 2.0MB 0ms 0ms nim/clang 1.6.6
nim 1.nim 1.7ms 0.6ms 0.7MB 0ms 0ms nim 1.6.6
java 1.java 79ms 1.8ms 61.3MB 73ms 18ms graal/jvm 17.0.3
java 1.java 81ms 2.9ms 38.9MB 82ms 10ms openjdk 18.0.1
java 1.java 85ms 4.6ms 38.3MB 78ms 14ms openjdk 19
java 1.java 131ms 1.4ms 38.7MB 86ms 58ms openjdk/zgc 18.0.1

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 899ms 3.5ms 94.4MB 447ms 420ms nim/clang 1.6.6
nim 1.nim 926ms 6.7ms 94.0MB 493ms 397ms nim 1.6.6

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 134ms 8.4ms 18.7MB 60ms 57ms nim/clang 1.6.6
nim 1.nim 145ms 1.0ms 17.8MB 70ms 60ms nim 1.6.6

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 148ms 0.5ms 0.9MB 140ms 0ms nim/clang 1.6.6
nim 2.nim 159ms 0.7ms 0.7MB 150ms 0ms nim 1.6.6
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.6
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.6

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 422ms 30ms 0.9MB 405ms 0ms nim/clang 1.6.6
nim 2.nim 467ms 0.4ms 0.7MB 460ms 0ms nim 1.6.6
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.6
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.6

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 65ms 0.1ms 0.9MB 53ms 0ms nim/clang 1.6.6
nim 2.nim 68ms 0.3ms 0.7MB 60ms 0ms nim 1.6.6
nim 1.nim 467ms 0.9ms 0.7MB 457ms 0ms nim 1.6.6
nim 1.nim 485ms 0.9ms 0.9MB 473ms 0ms nim/clang 1.6.6

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 485ms 35ms 4.9MB 470ms 0ms nim/clang 1.6.6
nim 1.nim 883ms 1.7ms 4.4MB 870ms 0ms nim 1.6.6
java 1b.java 1504ms 8.5ms 49.3MB 1590ms 23ms openjdk 18.0.1
java 1b.java 1512ms 22ms 46.3MB 1593ms 17ms openjdk 19
java 1b.java 1561ms 10ms 46.8MB 1600ms 67ms openjdk/zgc 18.0.1
java 1b.java 1584ms 87ms 132.7MB 1847ms 47ms graal/jvm 17.0.3
java 1a.java 1802ms 1.9ms 46.6MB 1883ms 13ms openjdk 19
java 1a.java 1803ms 1.3ms 50.0MB 1877ms 30ms openjdk 18.0.1
java 1a.java 1834ms 52ms 47.8MB 1847ms 63ms openjdk/zgc 18.0.1
java 1a.java 1869ms 12ms 119.0MB 2003ms 60ms graal/jvm 17.0.3
java 1.java 2037ms 44ms 168.5MB 2170ms 67ms graal/jvm 17.0.3
java 1.java 2151ms 2.3ms 220.7MB 2180ms 67ms openjdk 18.0.1
java 1.java 2159ms 5.0ms 201.4MB 2193ms 57ms openjdk 19
java 1.java 2545ms 18ms 593.9MB 2260ms 400ms openjdk/zgc 18.0.1
java 2.java timeout 0.0ms 0.0MB 0ms 0ms openjdk 18.0.1
java 2.java timeout 0.0ms 0.0MB 0ms 0ms openjdk 19
java 2.java timeout 0.0ms 0.0MB 0ms 0ms openjdk/zgc 18.0.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 22ms 1.9ms 1.0MB 10ms 0ms nim/clang 1.6.6
nim 1.nim 40ms 1.2ms 0.7MB 30ms 0ms nim 1.6.6
java 1b.java 211ms 11ms 43.5MB 273ms 27ms openjdk 19
java 1b.java 212ms 4.7ms 40.3MB 273ms 20ms openjdk 18.0.1
java 1a.java 225ms 3.8ms 41.3MB 293ms 10ms openjdk 18.0.1
java 1.java 229ms 3.5ms 93.4MB 267ms 27ms openjdk 19
java 1.java 234ms 6.6ms 95.8MB 290ms 20ms openjdk 18.0.1
java 1a.java 240ms 29ms 44.3MB 323ms 17ms openjdk 19
java 1b.java 263ms 8.1ms 44.7MB 277ms 63ms openjdk/zgc 18.0.1
java 1a.java 270ms 2.2ms 42.7MB 267ms 57ms openjdk/zgc 18.0.1
java 1.java 302ms 8.8ms 109.9MB 287ms 93ms openjdk/zgc 18.0.1
java 1a.java 576ms 22ms 119.6MB 360ms 40ms graal/jvm 17.0.3
java 1.java 577ms 9.9ms 116.3MB 327ms 43ms graal/jvm 17.0.3
java 1b.java 620ms 17ms 123.1MB 447ms 53ms graal/jvm 17.0.3
java 2.java 879ms 20ms 585.0MB 1000ms 187ms openjdk 19
java 2.java 940ms 19ms 547.6MB 1083ms 163ms openjdk 18.0.1
java 2.java 1586ms 64ms 1105.3MB 1177ms 707ms openjdk/zgc 18.0.1

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 573ms 6.4ms 366.3MB 573ms 103ms openjdk 18.0.1
java 1.java 575ms 12ms 364.4MB 590ms 83ms openjdk 19
java 1.java 972ms 22ms 447.4MB 777ms 140ms graal/jvm 17.0.3
java 1.java 1041ms 9.3ms 778.4MB 703ms 493ms openjdk/zgc 18.0.1
nim 1.nim 1385ms 10ms 35.0MB 1363ms 3ms nim 1.6.6
nim 1.nim 1590ms 8.8ms 35.1MB 1563ms 7ms nim/clang 1.6.6

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 240ms 4.4ms 171.2MB 230ms 63ms openjdk 19
java 1.java 243ms 2.4ms 220.9MB 237ms 53ms openjdk 18.0.1
nim 1.nim 322ms 21ms 9.3MB 307ms 0ms nim 1.6.6
nim 1.nim 338ms 0.6ms 10.0MB 323ms 0ms nim/clang 1.6.6
java 1.java 459ms 21ms 334.9MB 273ms 227ms openjdk/zgc 18.0.1
java 1.java 624ms 24ms 246.2MB 413ms 77ms graal/jvm 17.0.3

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 418ms 30ms 0.9MB 403ms 0ms nim 1.6.6
nim 2.nim 437ms 11ms 0.9MB 427ms 0ms nim/clang 1.6.6
java 1.java 626ms 14ms 40.9MB 643ms 13ms openjdk 18.0.1
java 1.java 628ms 13ms 39.7MB 637ms 17ms openjdk 19
java 1.java 696ms 1.2ms 38.4MB 663ms 53ms openjdk/zgc 18.0.1
java 1.java 891ms 1.3ms 88.1MB 610ms 33ms graal/jvm 17.0.3
java 2.java 2253ms 3.5ms 526.9MB 2250ms 147ms openjdk 18.0.1
java 2.java 2272ms 9.4ms 508.4MB 2277ms 157ms openjdk 19
java 2.java 3326ms 73ms 1646.8MB 2433ms 1097ms openjdk/zgc 18.0.1

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 43ms 4.2ms 1.0MB 33ms 0ms nim 1.6.6
nim 2.nim 46ms 0.8ms 1.0MB 37ms 0ms nim/clang 1.6.6
java 1.java 147ms 1.2ms 39.8MB 163ms 13ms openjdk 19
java 1.java 152ms 7.3ms 40.4MB 157ms 23ms openjdk 18.0.1
java 1.java 205ms 6.2ms 39.8MB 160ms 70ms openjdk/zgc 18.0.1
java 2.java 459ms 12ms 314.1MB 487ms 110ms openjdk 18.0.1
java 1.java 468ms 0.9ms 82.5MB 180ms 30ms graal/jvm 17.0.3
java 2.java 481ms 1.1ms 345.4MB 523ms 103ms openjdk 19
java 2.java 788ms 8.8ms 521.2MB 570ms 370ms openjdk/zgc 18.0.1

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 663ms 1.3ms 6.6MB 650ms 0ms nim/clang 1.6.6
nim 2.nim 776ms 0.8ms 6.1MB 760ms 0ms nim 1.6.6
java 2.java 934ms 57ms 51.2MB 970ms 13ms openjdk 18.0.1
java 2.java 1037ms 49ms 50.1MB 1067ms 23ms openjdk 19
java 2.java 1090ms 3.0ms 47.3MB 1067ms 63ms openjdk/zgc 18.0.1
nim 1.nim 1202ms 31ms 41.5MB 1180ms 7ms nim/clang 1.6.6
nim 1.nim 1255ms 71ms 40.4MB 1233ms 7ms nim 1.6.6
java 1.java 1767ms 54ms 82.7MB 1787ms 20ms openjdk 18.0.1
java 1.java 1820ms 4.2ms 108.5MB 1753ms 103ms openjdk/zgc 18.0.1
java 1.java 1852ms 16ms 82.3MB 1873ms 30ms openjdk 19
java 1.java 2029ms 33ms 170.9MB 2880ms 70ms graal/jvm 17.0.3
java 2-m.java 2082ms 1.6ms 136.2MB 3847ms 73ms graal/jvm 17.0.3

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 126ms 0.4ms 11.1MB 110ms 0ms nim 1.6.6
nim 1.nim 130ms 0.8ms 11.4MB 120ms 0ms nim/clang 1.6.6
nim 2.nim 152ms 1.1ms 3.3MB 140ms 0ms nim/clang 1.6.6
nim 2.nim 180ms 0.1ms 3.0MB 167ms 0ms nim 1.6.6
java 1.java 290ms 4.1ms 56.8MB 313ms 23ms openjdk 18.0.1
java 1.java 294ms 1.2ms 57.9MB 313ms 27ms openjdk 19
java 2.java 303ms 11ms 43.3MB 333ms 17ms openjdk 18.0.1
java 1.java 328ms 4.4ms 57.9MB 290ms 77ms openjdk/zgc 18.0.1
java 2.java 328ms 1.9ms 46.1MB 360ms 20ms openjdk 19
java 2.java 376ms 4.3ms 41.1MB 357ms 63ms openjdk/zgc 18.0.1
java 1.java 671ms 6.7ms 140.4MB 477ms 63ms graal/jvm 17.0.3
java 2.java 961ms 41ms 129.4MB 1160ms 33ms graal/jvm 17.0.3

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java timeout 0.0ms 0.0MB 0ms 0ms graal/jvm 17.0.3
java 1.java timeout 0.0ms 0.0MB 0ms 0ms openjdk 18.0.1
java 1.java timeout 0.0ms 0.0MB 0ms 0ms openjdk 19
java 1.java timeout 0.0ms 0.0MB 0ms 0ms openjdk/zgc 18.0.1
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.6
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.6

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 1559ms 24ms 379.5MB 1990ms 140ms graal/jvm 17.0.3
java 1.java 1649ms 6.5ms 261.4MB 1943ms 73ms openjdk 18.0.1
java 1.java 1663ms 16ms 262.7MB 2003ms 97ms openjdk 19
java 1.java 2164ms 24ms 984.4MB 2187ms 707ms openjdk/zgc 18.0.1
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.6
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.6

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 3300ms 230ms 1.9MB 3287ms 0ms nim 1.6.6
nim 1.nim 3433ms 1.4ms 1.8MB 3420ms 0ms nim/clang 1.6.6
java 2-m.java 4400ms 28ms 115.2MB 8420ms 57ms graal/jvm 17.0.3
java 2.java timeout 0.0ms 0.0MB 0ms 0ms openjdk 18.0.1
java 2.java timeout 0.0ms 0.0MB 0ms 0ms openjdk 19
java 2.java timeout 0.0ms 0.0MB 0ms 0ms openjdk/zgc 18.0.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 861ms 0.9ms 0.9MB 850ms 0ms nim/clang 1.6.6
nim 1.nim 862ms 1.5ms 0.9MB 850ms 0ms nim 1.6.6
java 2-m.java 1262ms 17ms 114.8MB 2297ms 53ms graal/jvm 17.0.3
java 2-m.java 1651ms 80ms 42.6MB 3087ms 23ms openjdk 19
java 2-m.java 2110ms 38ms 40.7MB 3980ms 13ms openjdk 18.0.1
java 2-m.java 2212ms 31ms 40.7MB 4127ms 67ms openjdk/zgc 18.0.1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 210ms 15ms 1.0MB 200ms 0ms nim/clang 1.6.6
nim 1.nim 218ms 0.5ms 0.9MB 207ms 0ms nim 1.6.6
java 2-m.java 522ms 28ms 40.2MB 907ms 13ms openjdk 19
java 2-m.java 634ms 6.8ms 39.1MB 1107ms 13ms openjdk 18.0.1
java 2-m.java 710ms 20ms 38.6MB 1183ms 53ms openjdk/zgc 18.0.1
java 2.java 755ms 14ms 104.2MB 733ms 37ms graal/jvm 17.0.3