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.

Zig VS V 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.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 1604ms 9.3ms 101.7MB 1573ms 13ms v/clang+gc 0.5.2
zig 1.zig 2945ms 28ms 49.1MB 2920ms 7ms zig 0.14.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 138ms 4.5ms 19.4MB 120ms 0ms v/clang+gc 0.5.2
zig 1.zig 280ms 53ms 7.1MB 240ms 0ms zig 0.14.1

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 5068ms 18ms 2.4MB 5030ms 20ms zig 0.14.1
v 1.v 6596ms 54ms 30.9MB 6567ms 10ms v/clang+gc 0.5.2

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 841ms 12ms 2.0MB 823ms 3ms zig 0.14.1
v 1.v 1175ms 26ms 13.5MB 1157ms 3ms v/clang+gc 0.5.2

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 833ms 6.5ms 1.5MB 3140ms 0ms zig 0.14.1
zig 3-i.zig 1413ms 43ms 1.1MB 1400ms 0ms zig 0.14.1
zig 1.zig 2763ms 12ms 1.1MB 2753ms 0ms zig 0.14.1
v 1.v 2835ms 11ms 2.4MB 2820ms 0ms v/clang+gc 0.5.2

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 77ms 2.6ms 1.5MB 243ms 0ms zig 0.14.1
zig 3-i.zig 124ms 4.7ms 1.1MB 113ms 0ms zig 0.14.1
zig 1.zig 239ms 3.8ms 1.1MB 227ms 0ms zig 0.14.1
v 1.v 248ms 15ms 2.4MB 237ms 0ms v/clang+gc 0.5.2

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 138ms 0.5ms 1.1MB 127ms 0ms zig 0.14.1
v 1.v 877ms 9.0ms 2.5MB 663ms 200ms v/clang+gc 0.5.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 17ms 1.2ms 1.1MB 10ms 0ms zig 0.14.1
v 1.v 92ms 2.6ms 2.5MB 60ms 13ms v/clang+gc 0.5.2

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 1.3ms 0.5ms 1.1MB 0ms 0ms zig 0.14.1
v 1.v 2.1ms 0.6ms 2.3MB 0ms 0ms v/clang+gc 0.5.2

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1-m.zig 798ms 15ms 66.9MB 2580ms 27ms zig 0.14.1
zig 1.zig 1043ms 10ms 26.3MB 1013ms 7ms zig 0.14.1

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1-m.zig 117ms 4.2ms 55.0MB 293ms 43ms zig 0.14.1
zig 1.zig 130ms 6.2ms 15.5MB 107ms 3ms zig 0.14.1

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 51ms 1.5ms 2.7MB 40ms 0ms zig 0.14.1
v 1.v 11561ms 129ms 3.5MB 11530ms 10ms v/clang+gc 0.5.2

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 143ms 5.9ms 2.7MB 133ms 0ms zig 0.14.1
v 1.v 35304ms 114ms 3.5MB 35217ms 63ms v/clang+gc 0.5.2

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 26ms 0.9ms 1.1MB 13ms 0ms zig 0.14.1
v 1.v 788ms 3.2ms 2.9MB 773ms 0ms v/clang+gc 0.5.2

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 350ms 2.1ms 4.2MB 340ms 0ms zig 0.14.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 17ms 0.6ms 1.1MB 10ms 0ms zig 0.14.1

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 1494ms 63ms 41.2MB 1463ms 13ms zig 0.14.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 267ms 4.3ms 11.0MB 253ms 3ms zig 0.14.1

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 3.zig 379ms 3.1ms 1.1MB 370ms 0ms zig 0.14.1
zig 2.zig 470ms 2.9ms 1.1MB 457ms 0ms zig 0.14.1
zig 1.zig 510ms 3.2ms 1.1MB 500ms 0ms zig 0.14.1
v 1.v 569ms 4.3ms 2.4MB 557ms 0ms v/clang+gc 0.5.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 3.zig 42ms 3.2ms 1.1MB 33ms 0ms zig 0.14.1
zig 2.zig 50ms 2.1ms 1.1MB 40ms 0ms zig 0.14.1
zig 1.zig 56ms 2.3ms 1.1MB 47ms 0ms zig 0.14.1
v 1.v 61ms 1.7ms 2.4MB 50ms 0ms v/clang+gc 0.5.2

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2.zig 552ms 15ms 6.0MB 543ms 0ms zig 0.14.1
zig 1.zig 958ms 9.6ms 40.1MB 940ms 0ms zig 0.14.1
v 1.v 1130ms 3.7ms 61.2MB 1107ms 3ms v/clang+gc 0.5.2
v 2.v 1606ms 14ms 7.2MB 1593ms 0ms v/clang+gc 0.5.2

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2.zig 107ms 1.3ms 2.2MB 100ms 0ms zig 0.14.1
zig 1.zig 170ms 4.1ms 11.0MB 160ms 0ms zig 0.14.1
v 1.v 214ms 4.8ms 19.5MB 197ms 0ms v/clang+gc 0.5.2
v 2.v 357ms 2.7ms 3.7MB 343ms 0ms v/clang+gc 0.5.2

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 3461ms 6.4ms 2.3MB 3433ms 13ms zig 0.14.1
v 2.v 10837ms 116ms 4.6MB 10803ms 20ms v/clang+gc 0.5.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 854ms 121ms 1.9MB 837ms 0ms zig 0.14.1
v 2.v 2606ms 68ms 4.6MB 2590ms 0ms v/clang+gc 0.5.2

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 11048ms 5.2ms 3.2MB 11037ms 0ms v/clang+gc 0.5.2
zig 1.zig 11057ms 6.2ms 1.1MB 11043ms 0ms zig 0.14.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 2763ms 3.5ms 3.0MB 2753ms 0ms v/clang+gc 0.5.2
zig 1.zig 2773ms 1.4ms 1.1MB 2757ms 0ms zig 0.14.1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 697ms 1.0ms 1.1MB 690ms 0ms zig 0.14.1
v 1.v 697ms 6.9ms 2.7MB 683ms 0ms v/clang+gc 0.5.2