Programming Language and compiler
Benchmarks

Zig VS Crystal benchmarks

Current benchmark data was generated on Wed Jan 22 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
crystal 1.cr 1316ms 80ms 64.1MB 1290ms 10ms crystal 1.15.0
zig 1.zig 1729ms 12ms 49.1MB 1700ms 13ms zig 0.13.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 110ms 9.3ms 10.9MB 100ms 0ms crystal 1.15.0
zig 1.zig 146ms 1.2ms 7.1MB 137ms 0ms zig 0.13.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 62ms 1.9ms 6.4MB 43ms 3ms crystal 1.15.0
zig 1.zig 2269ms 5.3ms 2.5MB 2230ms 23ms zig 0.13.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 23ms 1.6ms 5.1MB 10ms 0ms crystal 1.15.0
zig 1.zig 384ms 2.4ms 1.9MB 370ms 3ms zig 0.13.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 661ms 18ms 3.5MB 2427ms 0ms zig 0.13.0
zig 3-i.zig 1788ms 0.6ms 1.1MB 1777ms 0ms zig 0.13.0
zig 2.zig 2476ms 64ms 1.1MB 2467ms 0ms zig 0.13.0
crystal 1.cr 2495ms 6.5ms 2.8MB 2483ms 0ms crystal 1.15.0
zig 1.zig 2868ms 9.8ms 1.1MB 2857ms 0ms zig 0.13.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 60ms 2.2ms 3.5MB 190ms 0ms zig 0.13.0
zig 3-i.zig 149ms 0.2ms 1.1MB 140ms 0ms zig 0.13.0
zig 2.zig 199ms 5.9ms 1.1MB 190ms 0ms zig 0.13.0
crystal 1.cr 205ms 1.5ms 2.8MB 193ms 0ms crystal 1.15.0
zig 1.zig 239ms 0.8ms 1.1MB 230ms 0ms zig 0.13.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 87ms 0.6ms 1.1MB 80ms 0ms zig 0.13.0
crystal 2.cr 573ms 3.5ms 3.5MB 450ms 107ms crystal 1.15.0
crystal 1.cr 720ms 0.6ms 14.6MB 573ms 127ms crystal 1.15.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 10ms 0.1ms 1.1MB 0ms 0ms zig 0.13.0
crystal 2.cr 61ms 1.2ms 3.5MB 43ms 7ms crystal 1.15.0
crystal 1.cr 76ms 0.8ms 4.9MB 53ms 7ms crystal 1.15.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 1.0ms 0.1ms 1.3MB 0ms 0ms zig 0.13.0
crystal 1.cr 1.9ms 0.2ms 2.9MB 0ms 0ms crystal 1.15.0

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 788ms 2.8ms 20.8MB 767ms 7ms zig 0.13.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 89ms 1.6ms 7.5MB 73ms 0ms zig 0.13.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 35ms 1.1ms 2.9MB 30ms 0ms zig 0.13.0
crystal 0-unsafe.cr 37ms 1.0ms 2.9MB 23ms 0ms crystal 1.15.0
crystal 1.cr 65ms 1.7ms 3.0MB 57ms 0ms crystal 1.15.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 97ms 2.2ms 2.9MB 83ms 0ms zig 0.13.0
crystal 0-unsafe.cr 101ms 1.0ms 2.9MB 90ms 0ms crystal 1.15.0
crystal 1.cr 184ms 2.6ms 2.9MB 170ms 0ms crystal 1.15.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 16ms 0.6ms 1.4MB 10ms 0ms zig 0.13.0
crystal 0-unsafe.cr 18ms 0.6ms 2.9MB 10ms 0ms crystal 1.15.0
crystal 1.cr 30ms 1.5ms 2.9MB 20ms 0ms crystal 1.15.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 247ms 0.8ms 4.2MB 237ms 0ms zig 0.13.0
crystal 1.cr 314ms 3.9ms 9.2MB 303ms 0ms crystal 1.15.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 12ms 0.2ms 1.3MB 0ms 0ms zig 0.13.0
crystal 1.cr 18ms 0.3ms 5.8MB 10ms 0ms crystal 1.15.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 831ms 6.3ms 41.1MB 800ms 17ms zig 0.13.0
crystal 1.cr 860ms 29ms 64.1MB 830ms 10ms crystal 1.15.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 170ms 0.9ms 11.1MB 153ms 0ms zig 0.13.0
crystal 1.cr 178ms 4.4ms 22.0MB 160ms 3ms crystal 1.15.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2.zig 274ms 0.5ms 1.1MB 270ms 0ms zig 0.13.0
zig 1.zig 313ms 0.7ms 1.3MB 300ms 0ms zig 0.13.0
crystal 1.cr 342ms 2.4ms 3.3MB 330ms 0ms crystal 1.15.0
crystal 2.cr 342ms 1.6ms 3.3MB 330ms 0ms crystal 1.15.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2.zig 29ms 0.0ms 1.1MB 20ms 0ms zig 0.13.0
zig 1.zig 34ms 0.3ms 1.3MB 27ms 0ms zig 0.13.0
crystal 2.cr 37ms 0.7ms 3.3MB 23ms 0ms crystal 1.15.0
crystal 1.cr 38ms 1.4ms 3.3MB 30ms 0ms crystal 1.15.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 268ms 1.7ms 40.3MB 247ms 3ms zig 0.13.0
crystal 2.cr 299ms 3.7ms 8.2MB 287ms 0ms crystal 1.15.0
zig 2.zig 334ms 8.4ms 6.1MB 323ms 0ms zig 0.13.0
crystal 1.cr 419ms 1.3ms 42.8MB 403ms 0ms crystal 1.15.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 50ms 1.6ms 11.0MB 37ms 0ms zig 0.13.0
crystal 2.cr 75ms 1.4ms 4.4MB 67ms 0ms crystal 1.15.0
zig 2.zig 81ms 1.4ms 2.4MB 70ms 0ms zig 0.13.0
crystal 1.cr 89ms 2.6ms 13.0MB 77ms 0ms crystal 1.15.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1907ms 10ms 6.2MB 1877ms 13ms crystal 1.15.0
zig 1.zig 2472ms 10ms 2.3MB 2437ms 17ms zig 0.13.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 449ms 18ms 5.1MB 430ms 0ms crystal 1.15.0
zig 1.zig 566ms 0.6ms 1.8MB 553ms 0ms zig 0.13.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 473ms 1.2ms 3.9MB 1583ms 7ms zig 0.13.0
zig 2.zig 916ms 1.6ms 1.5MB 903ms 0ms zig 0.13.0
zig 1.zig 3670ms 6.3ms 1.5MB 3660ms 0ms zig 0.13.0
crystal 1.cr 3801ms 27ms 4.4MB 3787ms 0ms crystal 1.15.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 125ms 0.3ms 3.7MB 273ms 3ms zig 0.13.0
zig 2.zig 231ms 2.4ms 1.4MB 220ms 0ms zig 0.13.0
zig 1.zig 921ms 1.9ms 1.4MB 910ms 0ms zig 0.13.0
crystal 1.cr 955ms 2.5ms 4.3MB 943ms 0ms crystal 1.15.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 39ms 1.5ms 3.7MB 33ms 0ms zig 0.13.0
zig 2.zig 60ms 0.8ms 1.4MB 50ms 0ms zig 0.13.0
zig 1.zig 232ms 0.8ms 1.4MB 220ms 0ms zig 0.13.0
crystal 1.cr 245ms 2.9ms 3.8MB 237ms 0ms crystal 1.15.0