Programming Language and compiler
Benchmarks

All C benchmarks

Current benchmark data was generated on Thu May 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

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.c 1.0ms 0.0ms 1.3MB 0ms 0ms zigcc 0.14.0
1.c 1.2ms 0.0ms 2.1MB 0ms 0ms gcc 15.1.0
1.c 1.3ms 0.1ms 2.1MB 0ms 0ms clang 14.0.0-1ubuntu1.1

knucleotide

Input: 2500000_in

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1-m.c 171ms 2.8ms 23.5MB 400ms 10ms gcc 15.1.0
1-m.c 299ms 5.2ms 25.7MB 1013ms 33ms clang 14.0.0-1ubuntu1.1

Input: 250000_in

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1-m.c 27ms 0.7ms 13.6MB 60ms 0ms gcc 15.1.0
1-m.c 37ms 0.6ms 14.9MB 103ms 3ms clang 14.0.0-1ubuntu1.1

mandelbrot

Input: 5000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1-mffi.c 223ms 8.7ms 7.6MB 827ms 10ms clang 14.0.0-1ubuntu1.1
1-mffi.c 264ms 0.7ms 6.6MB 813ms 0ms gcc 15.1.0
1-ffi.c 329ms 0.7ms 6.0MB 320ms 0ms zigcc 0.14.0
1-mffi.c 331ms 2.6ms 6.0MB 323ms 0ms zigcc 0.14.0
1-ffi.c 452ms 1.2ms 6.5MB 440ms 0ms clang 14.0.0-1ubuntu1.1
1-ffi.c 543ms 1.9ms 6.8MB 533ms 0ms gcc 15.1.0

Input: 1000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1-mffi.c 15ms 0.3ms 4.5MB 30ms 0ms clang 14.0.0-1ubuntu1.1
1-ffi.c 16ms 0.0ms 3.0MB 10ms 0ms zigcc 0.14.0
1-mffi.c 16ms 0.1ms 3.0MB 10ms 0ms zigcc 0.14.0
1-mffi.c 16ms 0.7ms 3.5MB 43ms 0ms gcc 15.1.0
1-ffi.c 22ms 1.1ms 3.6MB 10ms 0ms clang 14.0.0-1ubuntu1.1
1-ffi.c 25ms 0.4ms 3.8MB 20ms 0ms gcc 15.1.0

nbody

Input: 5000000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
8-i.c 267ms 0.0ms 1.5MB 260ms 0ms zigcc 0.14.0
8-i.c 302ms 1.1ms 2.1MB 290ms 0ms clang 14.0.0-1ubuntu1.1
2.c 309ms 1.2ms 2.3MB 300ms 0ms gcc 15.1.0
5.c 313ms 1.1ms 2.3MB 300ms 0ms gcc 15.1.0
2.c 315ms 3.3ms 1.5MB 307ms 0ms zigcc 0.14.0
5.c 315ms 1.3ms 2.1MB 310ms 0ms clang 14.0.0-1ubuntu1.1
5.c 316ms 1.7ms 1.5MB 307ms 0ms zigcc 0.14.0
2.c 318ms 1.3ms 2.1MB 310ms 0ms clang 14.0.0-1ubuntu1.1
8-i.c 337ms 0.2ms 2.3MB 330ms 0ms gcc 15.1.0

Input: 500000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
8-i.c 29ms 0.3ms 1.5MB 20ms 0ms zigcc 0.14.0
8-i.c 33ms 0.1ms 2.1MB 23ms 0ms clang 14.0.0-1ubuntu1.1
2.c 33ms 0.5ms 1.5MB 27ms 0ms zigcc 0.14.0
2.c 33ms 0.5ms 2.3MB 27ms 0ms gcc 15.1.0
5.c 33ms 0.2ms 2.3MB 27ms 0ms gcc 15.1.0
5.c 34ms 0.2ms 2.1MB 30ms 0ms clang 14.0.0-1ubuntu1.1
5.c 35ms 0.4ms 1.5MB 30ms 0ms zigcc 0.14.0
2.c 35ms 1.6ms 2.1MB 30ms 0ms clang 14.0.0-1ubuntu1.1
8-i.c 36ms 0.1ms 2.3MB 30ms 0ms gcc 15.1.0

nsieve

Input: 12

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.c 279ms 14ms 40.8MB 263ms 0ms clang 14.0.0-1ubuntu1.1
1.c 281ms 12ms 41.1MB 263ms 0ms gcc 15.1.0
1.c 297ms 11ms 40.3MB 280ms 0ms zigcc 0.14.0

Input: 10

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.c 52ms 3.5ms 11.6MB 43ms 0ms gcc 15.1.0
1.c 55ms 4.3ms 11.5MB 47ms 0ms clang 14.0.0-1ubuntu1.1
1.c 59ms 1.5ms 11.0MB 50ms 0ms zigcc 0.14.0

spectral-norm

Input: 8000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
3-m.c 739ms 2.6ms 2.0MB 2903ms 0ms gcc 15.1.0
6-im.c 958ms 3.1ms 2.0MB 3763ms 0ms gcc 15.1.0
4-m.c 997ms 13ms 2.0MB 3907ms 0ms gcc 15.1.0
6-im.c 1028ms 44ms 3.3MB 4000ms 10ms clang 14.0.0-1ubuntu1.1
4-m.c 1124ms 4.6ms 3.3MB 4410ms 3ms clang 14.0.0-1ubuntu1.1
5-im.c 1146ms 2.8ms 2.0MB 4513ms 0ms gcc 15.1.0
5-im.c 1331ms 1.7ms 3.1MB 5233ms 10ms clang 14.0.0-1ubuntu1.1
3-m.c 1851ms 34ms 3.3MB 7240ms 17ms clang 14.0.0-1ubuntu1.1

Input: 4000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
3-m.c 195ms 2.1ms 2.0MB 740ms 0ms gcc 15.1.0
6-im.c 246ms 0.9ms 2.0MB 940ms 0ms gcc 15.1.0
4-m.c 260ms 2.9ms 2.0MB 993ms 0ms gcc 15.1.0
6-im.c 261ms 6.0ms 3.3MB 993ms 0ms clang 14.0.0-1ubuntu1.1
4-m.c 288ms 1.3ms 3.1MB 1107ms 0ms clang 14.0.0-1ubuntu1.1
5-im.c 298ms 5.3ms 2.0MB 1147ms 0ms gcc 15.1.0
5-im.c 347ms 7.1ms 3.3MB 1323ms 0ms clang 14.0.0-1ubuntu1.1
3-m.c 486ms 22ms 3.1MB 1843ms 7ms clang 14.0.0-1ubuntu1.1

Input: 2000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
3-m.c 56ms 0.5ms 2.0MB 200ms 0ms gcc 15.1.0
6-im.c 70ms 0.6ms 3.3MB 243ms 0ms clang 14.0.0-1ubuntu1.1
4-m.c 72ms 0.5ms 2.0MB 260ms 0ms gcc 15.1.0
6-im.c 75ms 11ms 2.0MB 257ms 0ms gcc 15.1.0
4-m.c 79ms 3.5ms 3.3MB 280ms 0ms clang 14.0.0-1ubuntu1.1
5-im.c 81ms 1.2ms 2.0MB 293ms 0ms gcc 15.1.0
5-im.c 91ms 0.1ms 3.1MB 330ms 0ms clang 14.0.0-1ubuntu1.1
3-m.c 124ms 3.0ms 3.3MB 450ms 0ms clang 14.0.0-1ubuntu1.1