Programming Language and compiler
Benchmarks

Nim VS Java benchmarks

Current benchmark data was generated on Thu Jul 13 2023, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][2 cores] Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz (Model 106)

* -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 672ms 7.4ms 412.4MB 670ms 97ms openjdk 20
java 2.java 673ms 14ms 413.9MB 690ms 80ms openjdk 22
java 2.java 799ms 50ms 666.8MB 807ms 187ms graal/jvm 17.0.7
java 2.java 1336ms 56ms 1147.9MB 903ms 630ms openjdk/zgc 20
nim 2.nim 1955ms 2.8ms 34.1MB 1930ms 10ms nim 1.6.14
nim 2.nim 2105ms 6.7ms 35.0MB 2087ms 7ms nim/clang 1.6.14

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 2.java 165ms 6.2ms 108.9MB 160ms 27ms openjdk 22
java 2.java 165ms 3.9ms 108.4MB 157ms 33ms openjdk 20
nim 2.nim 186ms 1.2ms 5.6MB 177ms 0ms nim 1.6.14
java 2.java 187ms 9.1ms 164.5MB 217ms 40ms graal/jvm 17.0.7
nim 2.nim 194ms 3.4ms 5.7MB 183ms 0ms nim/clang 1.6.14
java 2.java 298ms 0.3ms 235.9MB 193ms 137ms openjdk/zgc 20

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 142.9MB 9613ms 87ms openjdk 20
java 1.java timeout 0.0ms 146.5MB 9657ms 77ms openjdk 22
java 1.java timeout 0.0ms 931.7MB 9253ms 423ms openjdk/zgc 20
nim 1.nim timeout 0.0ms 423.4MB 3330ms 1317ms nim 1.6.14
nim 1.nim timeout 0.0ms 424.2MB 3350ms 1300ms nim/clang 1.6.14

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 796ms 16ms 113.4MB 1413ms 57ms openjdk 20
java 1-m.java 887ms 100ms 102.5MB 1617ms 37ms openjdk 22
java 1-m.java 899ms 17ms 206.7MB 1447ms 160ms openjdk/zgc 20
nim 1.nim timeout 0.0ms 421.6MB 3370ms 1283ms nim 1.6.14
nim 1.nim timeout 0.0ms 423.3MB 3447ms 1203ms nim/clang 1.6.14

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 814ms 88ms 182.0MB 1423ms 77ms openjdk 20
java 1-m.java 834ms 39ms 326.2MB 1440ms 113ms graal/jvm 17.0.7
java 1-m.java 888ms 79ms 197.5MB 1563ms 90ms openjdk 22
java 1-m.java 1052ms 56ms 468.2MB 1553ms 307ms openjdk/zgc 20
nim 1.nim timeout 0.0ms 3.0MB 4990ms 0ms nim 1.6.14
nim 1.nim timeout 0.0ms 3.0MB 4983ms 0ms nim/clang 1.6.14

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 383ms 16ms 161.4MB 613ms 53ms graal/jvm 17.0.7
java 1-m.java 430ms 5.0ms 118.4MB 703ms 33ms openjdk 22
java 1-m.java 447ms 27ms 115.5MB 730ms 40ms openjdk 20
java 1-m.java 527ms 17ms 206.2MB 743ms 147ms openjdk/zgc 20
nim 1.nim timeout 0.0ms 2.3MB 4990ms 0ms nim 1.6.14
nim 1.nim timeout 0.0ms 2.2MB 4983ms 0ms nim/clang 1.6.14

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 259ms 0.7ms 1.0MB 250ms 0ms nim 1.6.14
nim 2.nim 346ms 1.7ms 1.3MB 330ms 0ms nim/clang 1.6.14
java 4.java 512ms 6.3ms 41.0MB 587ms 13ms openjdk 22
java 4.java 521ms 11ms 40.5MB 583ms 17ms openjdk 20
java 4.java 558ms 4.2ms 40.2MB 583ms 57ms openjdk/zgc 20
java 4.java 612ms 3.2ms 97.1MB 797ms 27ms graal/jvm 17.0.7
nim 1.nim 785ms 2.8ms 1.0MB 687ms 83ms nim 1.6.14
nim 1.nim 799ms 1.3ms 1.2MB 690ms 90ms nim/clang 1.6.14

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 28ms 0.5ms 1.0MB 20ms 0ms nim 1.6.14
nim 2.nim 36ms 0.3ms 1.3MB 30ms 0ms nim/clang 1.6.14
nim 1.nim 81ms 0.5ms 1.0MB 60ms 7ms nim 1.6.14
nim 1.nim 83ms 0.8ms 1.2MB 70ms 0ms nim/clang 1.6.14
java 4.java 147ms 14ms 39.8MB 167ms 7ms openjdk 20
java 4.java 149ms 10ms 40.2MB 170ms 7ms openjdk 22
java 4.java 158ms 3.6ms 86.0MB 183ms 17ms graal/jvm 17.0.7
java 4.java 189ms 7.0ms 39.3MB 170ms 50ms openjdk/zgc 20

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1.2ms 0.1ms 1.0MB 0ms 0ms nim 1.6.14
nim 1.nim 2.9ms 2.0ms 1.2MB 0ms 0ms nim/clang 1.6.14
java 1.java 72ms 3.2ms 61.2MB 70ms 8ms graal/jvm 17.0.7
java 1.java 76ms 1.1ms 41.5MB 76ms 8ms openjdk 22
java 1.java 81ms 4.5ms 39.3MB 78ms 10ms openjdk 20
java 1.java 118ms 5.5ms 38.2MB 74ms 52ms openjdk/zgc 20

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 718ms 6.0ms 94.6MB 340ms 347ms nim/clang 1.6.14
nim 1.nim 722ms 2.7ms 94.2MB 313ms 377ms nim 1.6.14

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 121ms 1.3ms 18.3MB 50ms 53ms nim/clang 1.6.14
nim 1.nim 124ms 2.1ms 18.0MB 57ms 53ms nim 1.6.14

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 145ms 0.9ms 1.2MB 137ms 0ms nim/clang 1.6.14
nim 2.nim 152ms 0.8ms 1.1MB 140ms 0ms nim 1.6.14
nim 1.nim timeout 0.0ms 1.1MB 4990ms 0ms nim 1.6.14
nim 1.nim timeout 0.0ms 1.2MB 4983ms 0ms nim/clang 1.6.14

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 428ms 0.6ms 1.3MB 417ms 0ms nim/clang 1.6.14
nim 2.nim 450ms 0.8ms 1.1MB 440ms 0ms nim 1.6.14
nim 1.nim timeout 0.0ms 1.0MB 4987ms 0ms nim 1.6.14
nim 1.nim timeout 0.0ms 1.3MB 4987ms 0ms nim/clang 1.6.14

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 63ms 0.5ms 1.2MB 50ms 0ms nim/clang 1.6.14
nim 2.nim 65ms 1.7ms 1.0MB 57ms 0ms nim 1.6.14
nim 1.nim 389ms 5.3ms 1.2MB 373ms 0ms nim/clang 1.6.14
nim 1.nim 444ms 3.1ms 1.0MB 430ms 0ms nim 1.6.14

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 656ms 0.7ms 4.8MB 647ms 0ms nim/clang 1.6.14
nim 1.nim 983ms 0.4ms 4.3MB 970ms 0ms nim 1.6.14
java 1b.java 1411ms 4.8ms 47.7MB 1480ms 20ms openjdk 22
java 1b.java 1424ms 14ms 47.3MB 1527ms 13ms openjdk 20
java 1b.java 1458ms 20ms 47.4MB 1507ms 60ms openjdk/zgc 20
java 1b.java 1470ms 5.7ms 108.0MB 1697ms 27ms graal/jvm 17.0.7
java 1a.java 1541ms 3.5ms 47.3MB 1613ms 13ms openjdk 20
java 1a.java 1552ms 5.7ms 48.0MB 1623ms 17ms openjdk 22
java 1a.java 1557ms 2.6ms 99.4MB 1653ms 17ms graal/jvm 17.0.7
java 1a.java 1579ms 7.5ms 48.6MB 1623ms 53ms openjdk/zgc 20
java 1.java 1620ms 3.0ms 205.7MB 1643ms 43ms openjdk 22
java 1.java 2015ms 21ms 163.3MB 2103ms 33ms graal/jvm 17.0.7
java 1.java 2133ms 6.2ms 200.5MB 2180ms 40ms openjdk 20
java 1.java 2521ms 8.8ms 576.8MB 2233ms 397ms openjdk/zgc 20
java 2.java timeout 0.0ms 583.5MB 5140ms 137ms openjdk 20
java 2.java timeout 0.0ms 535.8MB 5163ms 127ms openjdk 22
java 2.java timeout 0.0ms 1758.3MB 4587ms 833ms openjdk/zgc 20

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 30ms 0.7ms 1.2MB 20ms 0ms nim/clang 1.6.14
nim 1.nim 43ms 0.7ms 1.1MB 30ms 0ms nim 1.6.14
java 1a.java 210ms 9.5ms 44.0MB 257ms 20ms openjdk 20
java 1a.java 215ms 2.1ms 44.1MB 270ms 10ms openjdk 22
java 1.java 219ms 11ms 95.5MB 263ms 20ms openjdk 20
java 1b.java 219ms 8.3ms 43.1MB 267ms 20ms openjdk 20
java 1b.java 224ms 5.1ms 43.7MB 297ms 10ms openjdk 22
java 1a.java 234ms 13ms 95.4MB 300ms 20ms graal/jvm 17.0.7
java 1.java 241ms 10ms 98.0MB 293ms 23ms openjdk 22
java 1.java 242ms 14ms 101.2MB 313ms 23ms graal/jvm 17.0.7
java 1b-m.java 250ms 31ms 96.5MB 370ms 27ms graal/jvm 17.0.7
java 1a.java 251ms 2.6ms 45.6MB 260ms 57ms openjdk/zgc 20
java 1b.java 266ms 9.2ms 44.9MB 293ms 53ms openjdk/zgc 20
java 1.java 292ms 13ms 110.2MB 303ms 77ms openjdk/zgc 20
java 2.java 778ms 33ms 545.6MB 950ms 117ms openjdk 22
java 2.java 788ms 25ms 566.3MB 973ms 120ms openjdk 20
java 2.java 1377ms 10ms 1001.3MB 1017ms 643ms openjdk/zgc 20

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 512ms 13ms 287.9MB 523ms 67ms openjdk 22
java 1.java 521ms 6.6ms 286.6MB 533ms 67ms openjdk 20
java 1.java 573ms 65ms 370.7MB 733ms 83ms graal/jvm 17.0.7
java 1.java 957ms 46ms 764.8MB 643ms 447ms openjdk/zgc 20
nim 1.nim 992ms 2.9ms 34.7MB 977ms 0ms nim 1.6.14
nim 1.nim 1065ms 6.2ms 34.5MB 1047ms 3ms nim/clang 1.6.14

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 211ms 1.7ms 9.3MB 197ms 0ms nim 1.6.14
nim 1.nim 229ms 2.5ms 9.5MB 217ms 0ms nim/clang 1.6.14
java 1.java 230ms 13ms 223.6MB 233ms 47ms openjdk 22
java 1.java 233ms 11ms 222.5MB 247ms 43ms openjdk 20
java 1-m.java 269ms 18ms 279.1MB 370ms 57ms graal/jvm 17.0.7
java 1.java 433ms 5.6ms 346.0MB 257ms 217ms openjdk/zgc 20

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 382ms 0.6ms 1.3MB 370ms 0ms nim 1.6.14
nim 2.nim 411ms 0.8ms 1.3MB 400ms 0ms nim/clang 1.6.14
java 1.java 546ms 4.8ms 87.4MB 567ms 27ms graal/jvm 17.0.7
java 1.java 568ms 7.8ms 40.5MB 577ms 13ms openjdk 20
java 1.java 569ms 5.5ms 43.6MB 580ms 10ms openjdk 22
java 1.java 608ms 2.8ms 41.6MB 577ms 60ms openjdk/zgc 20
java 2.java 1893ms 12ms 514.6MB 1927ms 103ms openjdk 20
java 2.java 1933ms 5.9ms 506.0MB 1947ms 120ms openjdk 22
java 2.java 2609ms 2.3ms 1195.5MB 2063ms 730ms openjdk/zgc 20

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 41ms 0.3ms 1.3MB 30ms 0ms nim 1.6.14
nim 2.nim 43ms 0.0ms 1.2MB 30ms 0ms nim/clang 1.6.14
java 1.java 141ms 3.4ms 84.6MB 173ms 13ms graal/jvm 17.0.7
java 1.java 148ms 3.9ms 40.8MB 160ms 17ms openjdk 20
java 1.java 149ms 5.8ms 41.7MB 163ms 10ms openjdk 22
java 1.java 197ms 7.3ms 41.7MB 167ms 57ms openjdk/zgc 20
java 2.java 424ms 2.6ms 338.1MB 493ms 60ms openjdk 20
java 2.java 425ms 2.7ms 330.8MB 493ms 67ms openjdk 22
java 2.java 762ms 1.2ms 522.5MB 547ms 360ms openjdk/zgc 20

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 568ms 14ms 40.3MB 550ms 0ms nim 1.6.14
nim 2.nim 608ms 6.1ms 6.5MB 597ms 0ms nim/clang 1.6.14
nim 2.nim 633ms 1.1ms 6.1MB 617ms 0ms nim 1.6.14
java 1.java 694ms 14ms 85.4MB 700ms 23ms openjdk 22
java 1.java 734ms 33ms 84.7MB 750ms 23ms openjdk 20
nim 1.nim 758ms 55ms 41.3MB 743ms 0ms nim/clang 1.6.14
java 1.java 970ms 84ms 110.1MB 930ms 87ms openjdk/zgc 20
java 2.java 1000ms 5.3ms 48.9MB 980ms 57ms openjdk/zgc 20
java 2.java 1017ms 8.0ms 51.9MB 1053ms 7ms openjdk 22
java 2.java 1020ms 4.5ms 50.9MB 1043ms 13ms openjdk 20
java 1-m.java 1226ms 33ms 242.1MB 1830ms 90ms graal/jvm 17.0.7
java 2-m.java 1700ms 6.4ms 190.7MB 3000ms 70ms graal/jvm 17.0.7

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 129ms 0.5ms 11.0MB 120ms 0ms nim 1.6.14
nim 1.nim 136ms 0.4ms 11.3MB 123ms 0ms nim/clang 1.6.14
nim 2.nim 142ms 1.0ms 3.3MB 130ms 0ms nim/clang 1.6.14
nim 2.nim 148ms 0.7ms 3.0MB 140ms 0ms nim 1.6.14
java 1.java 240ms 8.0ms 59.6MB 257ms 23ms openjdk 22
java 1.java 241ms 1.4ms 58.8MB 257ms 20ms openjdk 20
java 1.java 290ms 3.0ms 59.3MB 263ms 63ms openjdk/zgc 20
java 2.java 327ms 5.8ms 45.0MB 350ms 17ms openjdk 20
java 2.java 330ms 7.5ms 47.6MB 350ms 17ms openjdk 22
java 1-m.java 339ms 12ms 151.2MB 477ms 40ms graal/jvm 17.0.7
java 2.java 360ms 6.3ms 44.3MB 340ms 53ms openjdk/zgc 20
java 2-m.java 623ms 7.0ms 150.9MB 1083ms 63ms graal/jvm 17.0.7

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 4975ms 15ms 338.9MB 5350ms 67ms graal/jvm 17.0.7
java 1.java timeout 0.0ms 299.0MB 5433ms 90ms openjdk 20
java 1.java timeout 0.0ms 285.3MB 5593ms 80ms openjdk 22
java 1.java timeout 0.0ms 1177.0MB 5083ms 597ms openjdk/zgc 20
nim 1.nim timeout 0.0ms 5.9MB 4990ms 0ms nim 1.6.14
nim 1.nim timeout 0.0ms 6.0MB 4990ms 0ms nim/clang 1.6.14

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 1328ms 19ms 352.8MB 1673ms 63ms graal/jvm 17.0.7
java 1.java 1448ms 18ms 250.9MB 1840ms 73ms openjdk 20
java 1.java 1460ms 5.9ms 305.3MB 1907ms 63ms openjdk 22
java 1.java 1985ms 21ms 968.9MB 1903ms 623ms openjdk/zgc 20
nim 1.nim timeout 0.0ms 5.8MB 4990ms 0ms nim 1.6.14
nim 1.nim timeout 0.0ms 6.1MB 4983ms 0ms nim/clang 1.6.14

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 2492ms 6.4ms 168.0MB 2437ms 37ms nim/clang 1.6.14
nim 1.nim 2557ms 7.1ms 167.1MB 2500ms 37ms nim 1.6.14
java 3.java timeout 0.0ms 250.5MB 5317ms 63ms graal/jvm 17.0.7
java 3.java timeout 0.0ms 204.5MB 5253ms 63ms openjdk 20
java 3.java timeout 0.0ms 228.0MB 5277ms 57ms openjdk 22
java 3.java timeout 0.0ms 331.8MB 4970ms 223ms openjdk/zgc 20

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 255ms 0.2ms 17.2MB 240ms 0ms nim/clang 1.6.14
nim 1.nim 264ms 1.1ms 16.8MB 250ms 0ms nim 1.6.14
java 3.java 1019ms 5.8ms 167.1MB 1397ms 50ms graal/jvm 17.0.7
java 3.java 1043ms 13ms 98.4MB 1397ms 27ms openjdk 22
java 3.java 1066ms 8.2ms 111.9MB 1410ms 23ms openjdk 20
java 3.java 1170ms 23ms 156.7MB 1343ms 123ms openjdk/zgc 20

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 4117ms 0.5ms 1.2MB 4103ms 0ms nim/clang 1.6.14
nim 1.nim 4119ms 0.2ms 1.3MB 4110ms 0ms nim 1.6.14
java 2-m.java 4198ms 143ms 90.9MB 8130ms 17ms graal/jvm 17.0.7
java 2-m.java 4416ms 29ms 45.5MB 8555ms 15ms openjdk 22
java 2.java timeout 0.0ms 40.2MB 9730ms 13ms openjdk 20
java 2.java timeout 0.0ms 42.4MB 9590ms 40ms openjdk/zgc 20

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1031ms 0.5ms 1.3MB 1020ms 0ms nim/clang 1.6.14
nim 1.nim 1034ms 3.4ms 1.3MB 1020ms 0ms nim 1.6.14
java 2-m.java 1192ms 17ms 43.5MB 2213ms 13ms openjdk 22
java 2-m.java 1208ms 38ms 91.5MB 2243ms 20ms graal/jvm 17.0.7
java 2-m.java 1701ms 17ms 40.6MB 3223ms 3ms openjdk 20
java 2-m.java 1845ms 184ms 40.3MB 3417ms 60ms openjdk/zgc 20

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 261ms 0.8ms 1.3MB 250ms 0ms nim/clang 1.6.14
nim 1.nim 261ms 1.1ms 1.3MB 250ms 0ms nim 1.6.14
java 2-m.java 418ms 13ms 43.6MB 710ms 7ms openjdk 22
java 2-m.java 435ms 10ms 93.6MB 717ms 33ms graal/jvm 17.0.7
java 2-m.java 595ms 5.3ms 40.9MB 1060ms 10ms openjdk 20
java 2-m.java 638ms 37ms 42.3MB 1057ms 57ms openjdk/zgc 20