All C benchmarks

Current benchmark data was generated on Sun Dec 01 2024, 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 1.4MB 0ms 0ms zigcc 0.13.0
1.c 1.3ms 0.1ms 2.1MB 0ms 0ms gcc 14.2.0
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 180ms 7.8ms 25.8MB 427ms 0ms gcc 14.2.0
1-m.c 298ms 4.2ms 27.7MB 1027ms 17ms 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 30ms 1.4ms 12.6MB 63ms 3ms gcc 14.2.0
1-m.c 38ms 0.4ms 14.9MB 100ms 3ms clang 14.0.0-1ubuntu1.1

nbody

Input: 5000000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
8-i.c 245ms 1.0ms 1.5MB 230ms 0ms zigcc 0.13.0
5.c 298ms 0.2ms 1.5MB 283ms 0ms zigcc 0.13.0
8-i.c 301ms 1.8ms 2.1MB 290ms 0ms clang 14.0.0-1ubuntu1.1
2.c 308ms 1.0ms 2.3MB 300ms 0ms gcc 14.2.0
2.c 312ms 1.5ms 1.5MB 300ms 0ms zigcc 0.13.0
5.c 312ms 0.9ms 2.3MB 300ms 0ms gcc 14.2.0
5.c 315ms 2.3ms 2.1MB 307ms 0ms clang 14.0.0-1ubuntu1.1
2.c 317ms 2.8ms 2.1MB 307ms 0ms clang 14.0.0-1ubuntu1.1
8-i.c 332ms 0.1ms 2.3MB 320ms 0ms gcc 14.2.0

Input: 500000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
8-i.c 27ms 0.1ms 1.5MB 20ms 0ms zigcc 0.13.0
5.c 32ms 0.2ms 1.5MB 20ms 0ms zigcc 0.13.0
8-i.c 32ms 0.3ms 2.1MB 20ms 0ms clang 14.0.0-1ubuntu1.1
2.c 33ms 0.1ms 2.3MB 23ms 0ms gcc 14.2.0
5.c 34ms 0.6ms 2.3MB 20ms 0ms gcc 14.2.0
2.c 34ms 0.6ms 1.5MB 23ms 0ms zigcc 0.13.0
5.c 34ms 0.9ms 2.1MB 23ms 0ms clang 14.0.0-1ubuntu1.1
8-i.c 36ms 0.4ms 2.3MB 30ms 0ms gcc 14.2.0
2.c 37ms 5.1ms 2.1MB 27ms 0ms clang 14.0.0-1ubuntu1.1

nsieve

Input: 12

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.c 278ms 2.0ms 40.9MB 257ms 10ms gcc 14.2.0
1.c 287ms 8.8ms 40.9MB 267ms 7ms clang 14.0.0-1ubuntu1.1
1.c 310ms 10ms 40.3MB 297ms 3ms zigcc 0.13.0

Input: 10

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.c 53ms 2.4ms 11.6MB 40ms 0ms gcc 14.2.0
1.c 57ms 3.4ms 11.5MB 43ms 0ms clang 14.0.0-1ubuntu1.1
1.c 61ms 3.5ms 11.0MB 47ms 0ms zigcc 0.13.0

spectral-norm

Input: 8000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
6-im.c 956ms 1.0ms 4.1MB 3750ms 0ms gcc 14.2.0
4-m.c 966ms 0.5ms 4.0MB 3790ms 0ms gcc 14.2.0
6-im.c 1012ms 17ms 5.1MB 3937ms 7ms clang 14.0.0-1ubuntu1.1
5-im.c 1124ms 47ms 4.1MB 4327ms 3ms gcc 14.2.0
4-m.c 1139ms 14ms 5.3MB 4427ms 10ms clang 14.0.0-1ubuntu1.1
5-im.c 1334ms 8.3ms 5.2MB 5227ms 3ms clang 14.0.0-1ubuntu1.1
3-m.c 1835ms 6.5ms 7.2MB 7190ms 10ms clang 14.0.0-1ubuntu1.1
3-m.c 1981ms 16ms 4.1MB 7780ms 0ms gcc 14.2.0

Input: 4000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
6-im.c 251ms 2.9ms 4.0MB 953ms 0ms gcc 14.2.0
4-m.c 253ms 1.2ms 4.1MB 957ms 0ms gcc 14.2.0
6-im.c 261ms 3.2ms 7.2MB 973ms 0ms clang 14.0.0-1ubuntu1.1
5-im.c 290ms 11ms 4.0MB 1093ms 0ms gcc 14.2.0
4-m.c 291ms 2.9ms 5.4MB 1097ms 0ms clang 14.0.0-1ubuntu1.1
5-im.c 342ms 3.7ms 5.4MB 1313ms 0ms clang 14.0.0-1ubuntu1.1
3-m.c 479ms 25ms 7.3MB 1803ms 10ms clang 14.0.0-1ubuntu1.1
3-m.c 502ms 2.4ms 4.0MB 1950ms 0ms gcc 14.2.0

Input: 2000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
6-im.c 72ms 0.5ms 7.0MB 243ms 0ms clang 14.0.0-1ubuntu1.1
4-m.c 74ms 3.3ms 4.1MB 257ms 0ms gcc 14.2.0
6-im.c 74ms 6.9ms 4.0MB 250ms 0ms gcc 14.2.0
5-im.c 80ms 1.3ms 4.0MB 283ms 0ms gcc 14.2.0
4-m.c 82ms 2.6ms 7.0MB 277ms 0ms clang 14.0.0-1ubuntu1.1
5-im.c 95ms 3.2ms 5.2MB 333ms 3ms clang 14.0.0-1ubuntu1.1
3-m.c 124ms 1.2ms 5.3MB 450ms 0ms clang 14.0.0-1ubuntu1.1
3-m.c 134ms 0.3ms 4.0MB 497ms 0ms gcc 14.2.0