Programming Language and compiler
Benchmarks

Zig VS Chapel benchmarks

Current benchmark data was generated on Thu Jul 31 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
zig 1.zig 1800ms 10ms 49.0MB 1770ms 20ms zig 0.14.1
chapel 4.chpl 1972ms 41ms 62.4MB 1963ms 0ms chpl 1.31.0
chapel 3.chpl 2087ms 30ms 62.4MB 2077ms 0ms chpl 1.31.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 151ms 1.4ms 7.0MB 140ms 0ms zig 0.14.1
chapel 4.chpl 186ms 3.0ms 32.3MB 177ms 0ms chpl 1.31.0
chapel 3.chpl 188ms 1.3ms 30.3MB 180ms 0ms chpl 1.31.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 72ms 1.0ms 32.4MB 67ms 0ms chpl 1.31.0
zig 1.zig 2264ms 7.3ms 2.5MB 2237ms 13ms zig 0.14.1

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 32ms 0.7ms 30.5MB 30ms 0ms chpl 1.31.0
zig 1.zig 381ms 1.3ms 1.9MB 367ms 0ms zig 0.14.1

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 635ms 4.9ms 1.4MB 2407ms 0ms zig 0.14.1
zig 3-i.zig 1764ms 1.1ms 1.0MB 1753ms 0ms zig 0.14.1
zig 1.zig 2717ms 2.6ms 1.0MB 2707ms 0ms zig 0.14.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 59ms 0.1ms 1.4MB 200ms 0ms zig 0.14.1
zig 3-i.zig 147ms 0.5ms 1.0MB 140ms 0ms zig 0.14.1
zig 1.zig 228ms 0.5ms 1.0MB 220ms 0ms zig 0.14.1

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 86ms 0.1ms 1.0MB 80ms 0ms zig 0.14.1
chapel 5-m.chpl 106ms 1.7ms 28.4MB 190ms 0ms chpl 1.31.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 11ms 0.8ms 1.0MB 0ms 0ms zig 0.14.1
chapel 5.chpl 23ms 1.7ms 28.4MB 20ms 0ms chpl 1.31.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 0.9ms 0.1ms 1.1MB 0ms 0ms zig 0.14.1
chapel 1.chpl 11ms 1.3ms 28.8MB 0ms 0ms chpl 1.31.0

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1-m.zig 332ms 7.0ms 66.5MB 890ms 27ms zig 0.14.1
zig 1.zig 509ms 14ms 28.0MB 487ms 13ms zig 0.14.1
chapel 3-m.chpl 752ms 3.5ms 86.9MB 1423ms 10ms chpl 1.31.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1-m.zig 65ms 0.7ms 54.3MB 130ms 33ms zig 0.14.1
zig 1.zig 67ms 2.2ms 15.4MB 50ms 0ms zig 0.14.1
chapel 3-m.chpl 115ms 1.3ms 89.0MB 200ms 3ms chpl 1.31.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 35ms 1.9ms 2.8MB 27ms 0ms zig 0.14.1

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 94ms 0.7ms 2.8MB 83ms 0ms zig 0.14.1

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 16ms 1.3ms 1.3MB 10ms 0ms zig 0.14.1

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 250ms 1.2ms 4.1MB 240ms 0ms zig 0.14.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 12ms 0.1ms 1.1MB 0ms 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 864ms 5.0ms 41.0MB 840ms 13ms zig 0.14.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 181ms 2.0ms 11.0MB 170ms 0ms zig 0.14.1

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 3.zig 200ms 4.7ms 1.0MB 193ms 0ms zig 0.14.1
zig 2.zig 280ms 1.7ms 1.0MB 270ms 0ms zig 0.14.1
zig 1.zig 316ms 1.6ms 1.1MB 307ms 0ms zig 0.14.1
chapel 2.chpl 322ms 0.6ms 28.9MB 320ms 0ms chpl 1.31.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 3.zig 22ms 0.2ms 1.3MB 10ms 0ms zig 0.14.1
zig 2.zig 30ms 0.0ms 1.0MB 20ms 0ms zig 0.14.1
zig 1.zig 34ms 1.5ms 1.1MB 30ms 0ms zig 0.14.1
chapel 2.chpl 46ms 0.7ms 28.8MB 40ms 0ms chpl 1.31.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 298ms 8.6ms 40.2MB 280ms 0ms zig 0.14.1
zig 2.zig 329ms 3.2ms 6.0MB 320ms 0ms zig 0.14.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 52ms 2.4ms 10.9MB 43ms 0ms zig 0.14.1
zig 2.zig 81ms 1.1ms 2.3MB 70ms 0ms zig 0.14.1

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 448ms 2.3ms 30.3MB 440ms 0ms chpl 1.31.0
zig 1.zig 2466ms 17ms 2.2MB 2440ms 10ms zig 0.14.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 115ms 2.8ms 30.4MB 110ms 0ms chpl 1.31.0
zig 1.zig 567ms 4.5ms 1.8MB 557ms 0ms zig 0.14.1

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 1915ms 0.4ms 28.9MB 3807ms 0ms chpl 1.31.0
zig 1.zig 3699ms 11ms 1.4MB 3687ms 0ms zig 0.14.1
chapel 1.chpl 3728ms 7.9ms 28.8MB 3720ms 0ms chpl 1.31.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 492ms 1.5ms 28.8MB 960ms 0ms chpl 1.31.0
zig 1.zig 927ms 5.2ms 1.3MB 917ms 0ms zig 0.14.1
chapel 1.chpl 948ms 14ms 28.8MB 943ms 3ms chpl 1.31.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 135ms 1.3ms 29.0MB 240ms 0ms chpl 1.31.0
zig 1.zig 234ms 0.3ms 1.3MB 230ms 0ms zig 0.14.1
chapel 1.chpl 248ms 5.5ms 28.8MB 243ms 0ms chpl 1.31.0