Programming Language and compiler
Benchmarks

Chapel VS Zig 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
zig 1.zig 1872ms 186ms 49.0MB 1840ms 17ms zig 0.14.1
chapel 4.chpl 1953ms 3.7ms 62.3MB 1943ms 0ms chpl 1.31.0
chapel 3.chpl 2034ms 7.2ms 62.3MB 2027ms 0ms chpl 1.31.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 152ms 2.9ms 7.0MB 140ms 0ms zig 0.14.1
chapel 4.chpl 183ms 1.2ms 32.4MB 180ms 0ms chpl 1.31.0
chapel 3.chpl 184ms 0.6ms 32.3MB 180ms 0ms chpl 1.31.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 2252ms 44ms 799.1MB 4370ms 97ms chpl 1.31.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 220ms 8.1ms 759.6MB 343ms 67ms chpl 1.31.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 71ms 3.0ms 32.5MB 70ms 0ms chpl 1.31.0
zig 1.zig 2260ms 7.9ms 2.5MB 2237ms 10ms zig 0.14.1

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 33ms 1.6ms 30.5MB 30ms 0ms chpl 1.31.0
zig 1.zig 382ms 1.1ms 1.9MB 367ms 3ms zig 0.14.1

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 88ms 0.8ms 1.0MB 80ms 0ms zig 0.14.1
chapel 5-m.chpl 106ms 1.6ms 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 21ms 1.9ms 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 0.0ms 1.1MB 0ms 0ms zig 0.14.1
chapel 1.chpl 11ms 0.6ms 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 318ms 0.8ms 67.1MB 840ms 23ms zig 0.14.1
zig 1.zig 499ms 2.8ms 28.0MB 477ms 13ms zig 0.14.1
chapel 3-m.chpl 758ms 2.5ms 86.9MB 1433ms 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 1.8ms 54.3MB 133ms 33ms zig 0.14.1
zig 1.zig 66ms 2.2ms 15.4MB 50ms 3ms zig 0.14.1
chapel 3-m.chpl 117ms 1.8ms 87.0MB 203ms 3ms chpl 1.31.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 3.zig 198ms 1.1ms 1.0MB 190ms 0ms zig 0.14.1
zig 2.zig 280ms 0.5ms 1.0MB 270ms 0ms zig 0.14.1
zig 1.zig 315ms 0.8ms 1.1MB 303ms 0ms zig 0.14.1
chapel 2.chpl 322ms 1.9ms 28.9MB 317ms 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 0.3ms 1.0MB 10ms 0ms zig 0.14.1
zig 2.zig 30ms 0.1ms 1.0MB 20ms 0ms zig 0.14.1
zig 1.zig 34ms 0.6ms 1.1MB 30ms 0ms zig 0.14.1
chapel 2.chpl 43ms 0.4ms 28.8MB 40ms 0ms chpl 1.31.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 446ms 0.8ms 28.3MB 440ms 0ms chpl 1.31.0
zig 1.zig 2450ms 12ms 2.2MB 2420ms 17ms zig 0.14.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 115ms 1.5ms 30.4MB 110ms 0ms chpl 1.31.0
zig 1.zig 569ms 4.0ms 1.8MB 560ms 0ms zig 0.14.1

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 3.chpl 1387ms 2.0ms 246.2MB 1340ms 40ms chpl 1.31.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 3.chpl 162ms 2.3ms 48.9MB 143ms 10ms chpl 1.31.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 1210ms 43ms 29.0MB 1203ms 0ms chpl 1.31.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 315ms 12ms 29.1MB 310ms 0ms chpl 1.31.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 1924ms 19ms 28.9MB 3823ms 0ms chpl 1.31.0
zig 1.zig 3686ms 3.7ms 1.4MB 3677ms 0ms zig 0.14.1
chapel 1.chpl 3743ms 29ms 28.8MB 3740ms 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 2.1ms 28.9MB 953ms 0ms chpl 1.31.0
zig 1.zig 925ms 2.6ms 1.3MB 917ms 0ms zig 0.14.1
chapel 1.chpl 939ms 3.2ms 28.8MB 933ms 0ms chpl 1.31.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 138ms 9.9ms 28.9MB 250ms 3ms chpl 1.31.0
zig 1.zig 235ms 0.4ms 1.3MB 230ms 0ms zig 0.14.1
chapel 1.chpl 248ms 1.3ms 28.8MB 240ms 0ms chpl 1.31.0