Programming Language and compiler
Benchmarks

Results for 38 of 40 languages from this run on actest1.

Unavailable in this run: Hack, Lisp. Follow the run link for failure details.

Racket VS Java benchmarks

Current benchmark data was generated on Sun Sep 27 2026, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][4 cores] Intel(R) Core(TM) i7-3687U CPU @ 2.10GHz (Model 58)

* -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.)

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 4.java 471ms 5.9ms 48.4MB 617ms 17ms openjdk 21.0.12
java 4.java 569ms 9.0ms 44.2MB 627ms 110ms openjdk/zgc 21.0.12
racket 3.rkt 927ms 12ms 70.4MB 873ms 37ms racket 8.10.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 4-m.java 171ms 12ms 47.1MB 250ms 23ms openjdk 21.0.12
java 4.java 237ms 6.5ms 41.9MB 237ms 93ms openjdk/zgc 21.0.12
racket 3.rkt 240ms 10ms 65.0MB 200ms 27ms racket 8.10.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 93ms 5.3ms 44.3MB 116ms 12ms openjdk 21.0.12
racket 1.rkt 140ms 4.8ms 65.2MB 98ms 26ms racket 8.10.0
java 1.java 165ms 3.2ms 42.8MB 128ms 88ms openjdk/zgc 21.0.12

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 836ms 7.8ms 45.3MB 903ms 20ms openjdk 21.0.12
java 1.java 948ms 8.1ms 42.6MB 943ms 97ms openjdk/zgc 21.0.12
racket 2.rkt 1577ms 23ms 70.6MB 1533ms 30ms racket 8.10.0
java 2.java 2391ms 105ms 668.4MB 2600ms 133ms openjdk 21.0.12
java 2.java 4242ms 39ms 2140.1MB 3463ms 1093ms openjdk/zgc 21.0.12

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1-m.java 192ms 4.7ms 45.4MB 267ms 23ms openjdk 21.0.12
java 1.java 284ms 11ms 45.1MB 267ms 110ms openjdk/zgc 21.0.12
racket 2.rkt 315ms 11ms 70.3MB 267ms 33ms racket 8.10.0
java 2-m.java 470ms 6.5ms 319.0MB 713ms 53ms openjdk 21.0.12
java 2.java 889ms 1.9ms 558.5MB 850ms 327ms openjdk/zgc 21.0.12

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 1.java 5357ms 89ms 417.2MB 6753ms 143ms openjdk 21.0.12
racket 1.rkt 5907ms 26ms 71.7MB 5850ms 43ms racket 8.10.0
java 1.java 6538ms 393ms 2905.5MB 6313ms 1513ms openjdk/zgc 21.0.12

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
racket 1.rkt 1499ms 12ms 72.1MB 1453ms 30ms racket 8.10.0
java 1-m.java 1639ms 92ms 421.6MB 2920ms 107ms openjdk 21.0.12
java 1-m.java 2264ms 50ms 1392.4MB 2540ms 883ms openjdk/zgc 21.0.12

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 2-m.java 6269ms 79ms 47.7MB 24327ms 20ms openjdk 21.0.12
java 2-m.java 6422ms 61ms 45.2MB 24347ms 163ms openjdk/zgc 21.0.12
racket 3-m.rkt 8215ms 100ms 67.8MB 31520ms 47ms racket 8.10.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 2-m.java 1680ms 11ms 46.0MB 6267ms 40ms openjdk 21.0.12
java 2-m.java 1805ms 63ms 44.1MB 6343ms 120ms openjdk/zgc 21.0.12
racket 3-m.rkt 2097ms 14ms 67.5MB 7660ms 37ms racket 8.10.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
java 2-m.java 551ms 4.8ms 48.2MB 1853ms 20ms openjdk 21.0.12
racket 3-m.rkt 640ms 14ms 67.1MB 1983ms 33ms racket 8.10.0
java 2-m.java 646ms 7.1ms 45.7MB 1900ms 103ms openjdk/zgc 21.0.12