Programming Language and compiler
Benchmarks

C VS Go 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.)

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
c 1.c 1.2ms 0.0ms 2.1MB 0ms 0ms gcc 15.1.0
c 1.c 1.3ms 0.1ms 2.1MB 0ms 0ms clang 14.0.0-1ubuntu1.1
c 1.c 1.3ms 0.2ms 1.3MB 0ms 0ms zigcc 0.14.1
go 1.go 1.5ms 0.0ms 3.4MB 0ms 0ms go 1.24.4

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1-m.c 171ms 3.7ms 24.2MB 403ms 10ms gcc 15.1.0
c 1-m.c 298ms 5.1ms 25.7MB 993ms 23ms clang 14.0.0-1ubuntu1.1
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
c 1-m.c 28ms 1.2ms 13.6MB 60ms 0ms gcc 15.1.0
c 1-m.c 39ms 0.8ms 15.0MB 110ms 0ms clang 14.0.0-1ubuntu1.1
go 7-m.go 131ms 3.9ms 22.8MB 350ms 17ms go 1.24.4

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1-mffi.c 231ms 18ms 7.6MB 853ms 10ms clang 14.0.0-1ubuntu1.1
c 1-mffi.c 264ms 0.4ms 6.6MB 820ms 0ms gcc 15.1.0
c 1-mffi.c 331ms 2.3ms 6.0MB 320ms 0ms zigcc 0.14.1
c 1-ffi.c 332ms 1.4ms 6.1MB 320ms 0ms zigcc 0.14.1
c 1-ffi.c 455ms 3.6ms 6.5MB 443ms 0ms clang 14.0.0-1ubuntu1.1
c 1-ffi.c 542ms 0.4ms 6.8MB 530ms 0ms gcc 15.1.0
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
c 1-mffi.c 16ms 0.8ms 4.5MB 40ms 0ms clang 14.0.0-1ubuntu1.1
c 1-ffi.c 16ms 0.2ms 3.0MB 10ms 0ms zigcc 0.14.1
c 1-mffi.c 16ms 0.2ms 3.0MB 10ms 0ms zigcc 0.14.1
c 1-mffi.c 18ms 0.4ms 3.6MB 43ms 0ms gcc 15.1.0
c 1-ffi.c 24ms 5.3ms 3.6MB 13ms 0ms clang 14.0.0-1ubuntu1.1
c 1-ffi.c 26ms 0.9ms 3.9MB 20ms 0ms gcc 15.1.0
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

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 8-i.c 269ms 3.0ms 1.5MB 260ms 0ms zigcc 0.14.1
c 8-i.c 300ms 0.9ms 2.1MB 290ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 309ms 1.8ms 2.3MB 300ms 0ms gcc 15.1.0
c 2.c 313ms 2.3ms 1.5MB 300ms 0ms zigcc 0.14.1
c 5.c 313ms 0.7ms 2.3MB 300ms 0ms gcc 15.1.0
c 5.c 315ms 0.5ms 1.5MB 307ms 0ms zigcc 0.14.1
c 5.c 317ms 2.1ms 2.1MB 310ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 318ms 2.8ms 2.1MB 310ms 0ms clang 14.0.0-1ubuntu1.1
c 8-i.c 337ms 0.8ms 2.3MB 330ms 0ms gcc 15.1.0
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
c 8-i.c 29ms 0.5ms 1.5MB 20ms 0ms zigcc 0.14.1
c 8-i.c 33ms 0.5ms 2.1MB 27ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 33ms 0.3ms 1.5MB 30ms 0ms zigcc 0.14.1
c 2.c 34ms 0.5ms 2.3MB 23ms 0ms gcc 15.1.0
c 5.c 34ms 0.6ms 2.3MB 30ms 0ms gcc 15.1.0
c 5.c 34ms 0.1ms 1.5MB 30ms 0ms zigcc 0.14.1
c 2.c 34ms 0.9ms 2.1MB 30ms 0ms clang 14.0.0-1ubuntu1.1
c 5.c 35ms 0.9ms 2.1MB 30ms 0ms clang 14.0.0-1ubuntu1.1
c 8-i.c 36ms 0.4ms 2.3MB 30ms 0ms gcc 15.1.0
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
c 1.c 280ms 23ms 41.1MB 263ms 0ms gcc 15.1.0
c 1.c 300ms 13ms 40.3MB 283ms 0ms zigcc 0.14.1
c 1.c 311ms 7.1ms 40.8MB 293ms 0ms clang 14.0.0-1ubuntu1.1
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
c 1.c 52ms 3.9ms 11.8MB 43ms 0ms gcc 15.1.0
c 1.c 53ms 3.3ms 11.7MB 43ms 0ms clang 14.0.0-1ubuntu1.1
go 1.go 58ms 2.1ms 21.6MB 50ms 0ms go 1.24.4
c 1.c 58ms 2.4ms 11.0MB 50ms 0ms zigcc 0.14.1
go 1.go 68ms 2.4ms 10.1MB 60ms 0ms tinygo 0.38.0
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

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 3-m.c 737ms 1.3ms 2.0MB 2893ms 0ms gcc 15.1.0
c 6-im.c 953ms 1.8ms 2.0MB 3750ms 0ms gcc 15.1.0
c 4-m.c 988ms 1.5ms 2.0MB 3890ms 0ms gcc 15.1.0
c 6-im.c 1003ms 2.1ms 3.3MB 3940ms 0ms clang 14.0.0-1ubuntu1.1
c 4-m.c 1120ms 3.0ms 3.3MB 4407ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 1161ms 30ms 2.0MB 4523ms 0ms gcc 15.1.0
c 5-im.c 1334ms 14ms 3.3MB 5230ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 1836ms 7.3ms 3.3MB 7223ms 7ms clang 14.0.0-1ubuntu1.1
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
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
c 3-m.c 194ms 0.6ms 2.0MB 737ms 0ms gcc 15.1.0
c 6-im.c 245ms 0.6ms 2.0MB 940ms 0ms gcc 15.1.0
c 6-im.c 258ms 0.7ms 3.3MB 990ms 0ms clang 14.0.0-1ubuntu1.1
c 4-m.c 258ms 0.4ms 2.0MB 997ms 0ms gcc 15.1.0
c 4-m.c 287ms 0.2ms 3.3MB 1103ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 295ms 3.4ms 2.0MB 1137ms 0ms gcc 15.1.0
c 5-im.c 342ms 1.7ms 3.3MB 1310ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 464ms 1.1ms 3.3MB 1803ms 0ms clang 14.0.0-1ubuntu1.1
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
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
c 3-m.c 56ms 0.8ms 2.0MB 197ms 0ms gcc 15.1.0
c 6-im.c 68ms 0.4ms 2.3MB 247ms 0ms gcc 15.1.0
c 6-im.c 71ms 0.2ms 3.4MB 250ms 0ms clang 14.0.0-1ubuntu1.1
c 4-m.c 72ms 0.5ms 2.0MB 260ms 0ms gcc 15.1.0
c 4-m.c 78ms 0.6ms 3.3MB 280ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 80ms 0.4ms 2.0MB 293ms 0ms gcc 15.1.0
c 5-im.c 93ms 1.9ms 3.3MB 333ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 123ms 0.4ms 3.3MB 453ms 0ms clang 14.0.0-1ubuntu1.1
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
go 1.go 351ms 0.6ms 0.4MB 340ms 0ms tinygo 0.38.0