Go VS Zig benchmarks

Current benchmark data was generated on Tue Jul 01 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
go 1.go 1928ms 4.1ms 51.9MB 1907ms 7ms tinygo 0.38.0
zig 1.zig 2079ms 56ms 49.0MB 2047ms 17ms zig 0.14.1
go 1-m.go 2394ms 16ms 46.3MB 5317ms 47ms go 1.24.4

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 150ms 1.6ms 5.0MB 140ms 0ms tinygo 0.38.0
zig 1.zig 152ms 1.7ms 7.0MB 140ms 0ms zig 0.14.1
go 1-m.go 209ms 0.3ms 8.0MB 367ms 13ms go 1.24.4

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-m.go 515ms 53ms 15.5MB 2007ms 0ms go 1.24.4
go 1.go timeout 0.0ms 13.1MB 2563ms 16923ms tinygo 0.38.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-m.go 60ms 20ms 7.5MB 217ms 0ms go 1.24.4
go 1-m.go 660ms 66ms 4.3MB 317ms 2160ms tinygo 0.38.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 118ms 0.0ms 8.6MB 110ms 0ms go 1.24.4
zig 1.zig 2256ms 12ms 2.5MB 2227ms 17ms zig 0.14.1

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 34ms 0.5ms 8.2MB 30ms 0ms go 1.24.4
zig 1.zig 380ms 2.7ms 1.9MB 363ms 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 634ms 3.4ms 1.4MB 2393ms 0ms zig 0.14.1
go 3-m.go 672ms 0.8ms 5.5MB 2597ms 0ms go 1.24.4
go 3-m.go 728ms 4.2ms 2.9MB 2663ms 40ms tinygo 0.38.0
zig 3-i.zig 1791ms 48ms 1.0MB 1780ms 0ms zig 0.14.1
zig 1.zig 2728ms 20ms 1.0MB 2720ms 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 60ms 0.4ms 1.4MB 200ms 0ms zig 0.14.1
go 3-m.go 74ms 0.2ms 3.5MB 200ms 0ms go 1.24.4
go 3-m.go 104ms 2.9ms 3.0MB 193ms 33ms tinygo 0.38.0
zig 3-i.zig 147ms 0.3ms 1.0MB 140ms 0ms zig 0.14.1
zig 1.zig 228ms 1.0ms 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 88ms 0.6ms 1.0MB 80ms 0ms zig 0.14.1
go 3-m.go 126ms 0.7ms 5.5MB 377ms 0ms go 1.24.4

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 10ms 0.1ms 1.0MB 0ms 0ms zig 0.14.1
go 3-m.go 17ms 0.4ms 7.5MB 30ms 0ms go 1.24.4

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 0.7ms 0.0ms 0.3MB 0ms 0ms tinygo 0.38.0
zig 1.zig 0.9ms 0.0ms 1.1MB 0ms 0ms zig 0.14.1
go 1.go 1.5ms 0.0ms 3.4MB 0ms 0ms go 1.24.4

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-http2.go 123ms 1.9ms 56.3MB 350ms 80ms go 1.24.4
go 2-m.go 381ms 35ms 167.6MB 670ms 623ms go 1.24.4
go 1-m.go 397ms 21ms 166.2MB 737ms 610ms go 1.24.4

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-http2.go 31ms 1.3ms 26.0MB 60ms 20ms go 1.24.4
go 1-m.go 73ms 5.1ms 38.9MB 103ms 93ms go 1.24.4
go 2-m.go 78ms 5.4ms 34.7MB 113ms 110ms go 1.24.4

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 2-ffi.go 47ms 0.6ms 41.2MB 40ms 10ms go 1.24.4
go 1.go 140ms 1.7ms 18.6MB 133ms 0ms go 1.24.4

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 2-ffi.go 246ms 7.1ms 145.2MB 240ms 37ms go 1.24.4
go 1.go 742ms 5.5ms 104.8MB 733ms 10ms go 1.24.4

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1-m.zig 321ms 1.7ms 67.1MB 853ms 20ms zig 0.14.1
zig 1.zig 504ms 4.0ms 27.9MB 480ms 13ms zig 0.14.1
go 7-m.go 695ms 16ms 39.7MB 2387ms 30ms go 1.24.4

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1-m.zig 65ms 0.5ms 54.4MB 127ms 37ms zig 0.14.1
zig 1.zig 67ms 2.4ms 15.4MB 50ms 3ms zig 0.14.1
go 7-m.go 131ms 3.9ms 22.8MB 350ms 17ms go 1.24.4

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 36ms 0.2ms 2.8MB 30ms 0ms zig 0.14.1
go 3.go 121ms 2.4ms 3.5MB 113ms 0ms go 1.24.4
go 3.go 134ms 1.8ms 0.4MB 127ms 0ms tinygo 0.38.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 90ms 0.4ms 2.8MB 80ms 0ms zig 0.14.1
go 3.go 388ms 5.6ms 0.4MB 380ms 0ms tinygo 0.38.0
go 3.go 395ms 2.9ms 3.5MB 387ms 0ms go 1.24.4

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 14ms 0.1ms 1.3MB 10ms 0ms zig 0.14.1
go 3.go 50ms 1.2ms 3.5MB 43ms 0ms go 1.24.4
go 3.go 66ms 1.7ms 0.3MB 60ms 0ms tinygo 0.38.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 249ms 1.1ms 4.1MB 240ms 0ms zig 0.14.1
go 1.go 3224ms 8.6ms 7.7MB 3213ms 3ms go 1.24.4
go 1.go 3581ms 19ms 3.3MB 3573ms 0ms tinygo 0.38.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 12ms 0.3ms 1.1MB 0ms 0ms zig 0.14.1
go 1.go 137ms 0.8ms 3.6MB 130ms 0ms go 1.24.4
go 1.go 149ms 1.9ms 0.4MB 140ms 0ms tinygo 0.38.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 877ms 11ms 41.0MB 850ms 13ms zig 0.14.1
go 1.go 1100ms 7.0ms 35.5MB 1080ms 7ms tinygo 0.38.0
go 2.go 1430ms 21ms 51.9MB 1407ms 7ms tinygo 0.38.0
go 1-m.go 1489ms 1.4ms 49.0MB 3160ms 40ms go 1.24.4
go 2-m.go 1716ms 9.3ms 43.0MB 3753ms 40ms go 1.24.4

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 178ms 3.0ms 11.0MB 163ms 0ms zig 0.14.1
go 1.go 220ms 9.6ms 11.6MB 207ms 0ms tinygo 0.38.0
go 2.go 293ms 9.9ms 15.4MB 280ms 0ms tinygo 0.38.0
go 1-m.go 335ms 1.4ms 12.1MB 673ms 23ms go 1.24.4
go 2-m.go 376ms 1.7ms 13.9MB 793ms 20ms go 1.24.4

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 3.zig 198ms 1.0ms 1.0MB 190ms 0ms zig 0.14.1
zig 2.zig 279ms 0.3ms 1.0MB 270ms 0ms zig 0.14.1
zig 1.zig 315ms 1.5ms 1.1MB 307ms 0ms zig 0.14.1
go 1.go 352ms 3.6ms 3.5MB 343ms 0ms go 1.24.4
go 1.go 352ms 7.5ms 0.3MB 343ms 0ms tinygo 0.38.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 3.zig 22ms 0.1ms 1.0MB 10ms 0ms zig 0.14.1
zig 2.zig 30ms 0.0ms 1.0MB 20ms 0ms zig 0.14.1
zig 1.zig 33ms 0.1ms 1.1MB 30ms 0ms zig 0.14.1
go 1.go 38ms 1.4ms 3.5MB 30ms 0ms go 1.24.4
go 1.go 39ms 1.1ms 0.3MB 30ms 0ms tinygo 0.38.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 274ms 3.8ms 40.2MB 257ms 0ms zig 0.14.1
zig 2.zig 325ms 2.5ms 6.0MB 313ms 0ms zig 0.14.1
go 1.go 339ms 8.4ms 71.7MB 323ms 3ms go 1.24.4
go 1.go 359ms 47ms 39.4MB 343ms 0ms tinygo 0.38.0
go 2.go 470ms 2.5ms 20.0MB 457ms 0ms tinygo 0.38.0
go 2.go 750ms 9.1ms 21.6MB 737ms 7ms go 1.24.4

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 50ms 2.9ms 10.9MB 40ms 0ms zig 0.14.1
go 1.go 58ms 2.1ms 21.6MB 50ms 0ms go 1.24.4
go 1.go 68ms 2.4ms 10.1MB 60ms 0ms tinygo 0.38.0
zig 2.zig 81ms 0.8ms 2.3MB 70ms 0ms zig 0.14.1
go 2.go 119ms 5.6ms 4.1MB 107ms 0ms tinygo 0.38.0
go 2.go 185ms 0.8ms 6.3MB 173ms 0ms go 1.24.4

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 8.go 1207ms 7.6ms 8.6MB 1193ms 0ms go 1.24.4
zig 1.zig 2453ms 3.5ms 2.2MB 2427ms 17ms zig 0.14.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 8.go 283ms 3.4ms 8.6MB 270ms 0ms go 1.24.4
zig 1.zig 564ms 2.2ms 1.8MB 553ms 0ms zig 0.14.1

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3.go timeout 0.0ms 126.4MB 4987ms 40ms go 1.24.4
go 3.go timeout 0.0ms 84.8MB 4967ms 13ms tinygo 0.38.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3.go 1793ms 82ms 19.9MB 1777ms 27ms go 1.24.4
go 3.go 2297ms 19ms 23.0MB 2280ms 3ms tinygo 0.38.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 0-ffi.go 91ms 0.9ms 5.2MB 83ms 0ms go 1.24.4

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 0-ffi.go 25ms 0.9ms 5.2MB 20ms 0ms go 1.24.4

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 4-m.go 1900ms 1.2ms 5.5MB 7423ms 7ms go 1.24.4
go 1.go 3659ms 14ms 5.5MB 3650ms 3ms go 1.24.4
zig 1.zig 3691ms 6.4ms 1.4MB 3683ms 0ms zig 0.14.1
go 1.go timeout 0.0ms 0.5MB 4990ms 0ms tinygo 0.38.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 4-m.go 480ms 0.2ms 5.6MB 1843ms 0ms go 1.24.4
go 1.go 921ms 7.0ms 3.5MB 913ms 0ms go 1.24.4
zig 1.zig 925ms 2.3ms 1.3MB 913ms 0ms zig 0.14.1
go 1.go 1398ms 2.9ms 0.4MB 1390ms 0ms tinygo 0.38.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 4-m.go 125ms 1.2ms 5.5MB 450ms 0ms go 1.24.4
go 1.go 232ms 0.1ms 3.5MB 220ms 0ms go 1.24.4
zig 1.zig 233ms 1.3ms 1.3MB 223ms 0ms zig 0.14.1
go 1.go 351ms 0.6ms 0.4MB 340ms 0ms tinygo 0.38.0