Perl 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
java 2.java 1191ms 22ms 1054.4MB 577ms 773ms openjdk/zgc 21
perl 1.pl timeout 0.0ms 77.8MB 4963ms 23ms perl 5.40.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
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
java 2.java 305ms 2.0ms 241.5MB 157ms 197ms openjdk/zgc 21
perl 1.pl 1814ms 11ms 14.4MB 1800ms 0ms perl 5.40.2

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
java 4.java 566ms 2.0ms 45.1MB 530ms 140ms openjdk/zgc 21
perl 1.pl 3699ms 175ms 10.9MB 3687ms 0ms perl 5.40.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
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
perl 1.pl 365ms 1.2ms 6.6MB 357ms 0ms perl 5.40.2

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
perl 1.pl 2.7ms 0.4ms 5.3MB 0ms 0ms perl 5.40.2
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

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
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
perl 2.pl timeout 0.0ms 6.1MB 4990ms 0ms perl 5.40.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
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
perl 2.pl 2731ms 3.5ms 6.1MB 2723ms 0ms perl 5.40.2

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
perl 4.pl timeout 0.0ms 10.0MB 19643ms 7ms perl 5.40.2

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
perl 4.pl timeout 0.0ms 10.0MB 19530ms 3ms perl 5.40.2

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
java 2-m.java 328ms 5.5ms 93.3MB 1020ms 40ms graal/jvm 17.0.8
java 2-m.java 381ms 12ms 45.7MB 770ms 147ms openjdk/zgc 21
perl 4-m.pl 3449ms 32ms 9.4MB 13333ms 3ms perl 5.40.2