Programming Language and compiler
Benchmarks

C VS C++ benchmarks

Current benchmark data was generated on Mon Feb 06 2023, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][2 cores] Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz (Model 85)

* -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
c 1.c 1.5ms 0.4ms 1.5MB 0ms 0ms zigcc 0.11.0-dev.1577+11cc1c16f
c 1.c 2.0ms 0.6ms 1.3MB 0ms 0ms gcc 12.2.0
c 1.c 2.2ms 0.6ms 1.4MB 0ms 0ms clang 14.0.0
cpp 1.cpp 2.3ms 0.8ms 1.4MB 0ms 0ms clang++ 14.0.0
cpp 1.cpp 2.4ms 0.7ms 1.4MB 0ms 0ms g++ 12.2.0

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1-m.c 248ms 8.5ms 23.5MB 403ms 13ms gcc 12.2.0
c 1-m.c 512ms 17ms 20.5MB 867ms 17ms clang 14.0.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 36ms 1.8ms 13.5MB 43ms 0ms gcc 12.2.0
c 1.c 69ms 16ms 9.8MB 103ms 0ms clang 14.0.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 184ms 0.1ms 1.3MB 173ms 0ms g++ 12.2.0
cpp 0-i.cpp 211ms 0.5ms 1.4MB 200ms 0ms clang++ 14.0.0
c 8-i.c 271ms 2.7ms 1.2MB 260ms 0ms zigcc 0.11.0-dev.1577+11cc1c16f
c 8-i.c 331ms 1.3ms 1.3MB 320ms 0ms gcc 12.2.0
c 5.c 335ms 0.5ms 1.3MB 327ms 0ms gcc 12.2.0
c 8-i.c 350ms 0.9ms 1.4MB 340ms 0ms clang 14.0.0
cpp 1.cpp 352ms 5.7ms 1.4MB 337ms 0ms clang++ 14.0.0
c 5.c 357ms 1.0ms 1.4MB 340ms 0ms clang 14.0.0
c 5.c 357ms 1.9ms 0.9MB 340ms 0ms zigcc 0.11.0-dev.1577+11cc1c16f
cpp 1.cpp 358ms 0.6ms 1.3MB 350ms 0ms g++ 12.2.0
c 2.c 362ms 3.2ms 1.2MB 350ms 0ms zigcc 0.11.0-dev.1577+11cc1c16f
c 2.c 389ms 0.2ms 1.4MB 377ms 0ms clang 14.0.0
c 2.c 489ms 8.2ms 1.3MB 473ms 0ms gcc 12.2.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 21ms 0.9ms 1.3MB 10ms 0ms g++ 12.2.0
cpp 0-i.cpp 26ms 1.3ms 1.4MB 17ms 0ms clang++ 14.0.0
c 8-i.c 30ms 0.3ms 1.2MB 20ms 0ms zigcc 0.11.0-dev.1577+11cc1c16f
c 8-i.c 36ms 0.2ms 1.3MB 30ms 0ms gcc 12.2.0
c 5.c 36ms 0.2ms 1.3MB 30ms 0ms gcc 12.2.0
c 5.c 38ms 0.7ms 1.0MB 30ms 0ms zigcc 0.11.0-dev.1577+11cc1c16f
c 5.c 38ms 0.3ms 1.4MB 30ms 0ms clang 14.0.0
c 8-i.c 38ms 0.3ms 1.4MB 30ms 0ms clang 14.0.0
cpp 1.cpp 38ms 1.3ms 1.4MB 30ms 0ms clang++ 14.0.0
cpp 1.cpp 39ms 1.6ms 1.4MB 30ms 0ms g++ 12.2.0
c 2.c 39ms 0.8ms 1.2MB 30ms 0ms zigcc 0.11.0-dev.1577+11cc1c16f
c 2.c 42ms 0.5ms 1.4MB 30ms 0ms clang 14.0.0
c 2.c 52ms 0.3ms 1.3MB 40ms 0ms gcc 12.2.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 664ms 9.6ms 7.5MB 650ms 0ms g++ 12.2.0
cpp 1.cpp 682ms 1.2ms 7.5MB 667ms 0ms clang++ 14.0.0
c 1.c 1280ms 8.3ms 40.9MB 1247ms 17ms clang 14.0.0
c 1.c 1306ms 10ms 40.0MB 1273ms 13ms zigcc 0.11.0-dev.1577+11cc1c16f
c 1.c 1306ms 19ms 40.9MB 1273ms 13ms gcc 12.2.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 136ms 3.6ms 11.0MB 120ms 0ms zigcc 0.11.0-dev.1577+11cc1c16f
c 1.c 138ms 4.0ms 11.8MB 117ms 3ms gcc 12.2.0
c 1.c 139ms 3.4ms 11.7MB 120ms 0ms clang 14.0.0
cpp 1.cpp 150ms 0.5ms 4.0MB 140ms 0ms g++ 12.2.0
cpp 1.cpp 155ms 0.5ms 3.9MB 143ms 0ms clang++ 14.0.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 7-m.cpp 894ms 1.2ms 3.3MB 1743ms 0ms clang++ 14.0.0
cpp 7-m.cpp 901ms 3.0ms 1.3MB 1753ms 0ms g++ 12.2.0
cpp 8-m.cpp 903ms 15ms 3.3MB 1740ms 3ms clang++ 14.0.0
cpp 8-m.cpp 903ms 1.4ms 1.3MB 1760ms 0ms g++ 12.2.0
c 4-m.c 1280ms 2.8ms 1.3MB 2503ms 0ms gcc 12.2.0
c 4-m.c 1595ms 21ms 3.2MB 3123ms 0ms clang 14.0.0
c 5-im.c 1605ms 1.3ms 1.3MB 3137ms 3ms gcc 12.2.0
c 6-im.c 1644ms 8.7ms 1.3MB 3200ms 0ms gcc 12.2.0
c 6-im.c 1667ms 15ms 3.2MB 3257ms 0ms clang 14.0.0
cpp 6-im.cpp 1847ms 1.3ms 1.4MB 3627ms 0ms g++ 12.2.0
c 3-m.c 1868ms 4.6ms 3.2MB 3673ms 0ms clang 14.0.0
cpp 6-im.cpp 1870ms 13ms 3.4MB 3650ms 0ms clang++ 14.0.0
c 3-m.c 1894ms 21ms 1.3MB 3697ms 0ms gcc 12.2.0
c 5-im.c 2042ms 13ms 3.2MB 3997ms 3ms clang 14.0.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 7-m.cpp 235ms 0.2ms 3.4MB 440ms 0ms clang++ 14.0.0
cpp 7-m.cpp 236ms 1.9ms 1.3MB 437ms 0ms g++ 12.2.0
cpp 8-m.cpp 237ms 1.3ms 1.3MB 440ms 0ms g++ 12.2.0
cpp 8-m.cpp 239ms 3.1ms 3.3MB 440ms 0ms clang++ 14.0.0
c 4-m.c 333ms 2.4ms 1.3MB 630ms 0ms gcc 12.2.0
c 4-m.c 408ms 1.5ms 3.1MB 777ms 0ms clang 14.0.0
c 5-im.c 416ms 2.7ms 1.3MB 790ms 0ms gcc 12.2.0
c 6-im.c 421ms 2.9ms 2.4MB 800ms 0ms gcc 12.2.0
c 6-im.c 426ms 1.8ms 3.3MB 810ms 0ms clang 14.0.0
cpp 6-im.cpp 473ms 1.6ms 3.3MB 907ms 0ms clang++ 14.0.0
cpp 6-im.cpp 477ms 3.6ms 1.3MB 907ms 0ms g++ 12.2.0
c 3-m.c 484ms 1.9ms 1.3MB 933ms 0ms gcc 12.2.0
c 3-m.c 490ms 17ms 3.2MB 930ms 0ms clang 14.0.0
c 5-im.c 524ms 0.6ms 3.2MB 1007ms 0ms clang 14.0.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 7-m.cpp 65ms 0.3ms 3.2MB 107ms 0ms clang++ 14.0.0
cpp 7-m.cpp 66ms 0.4ms 1.3MB 110ms 0ms g++ 12.2.0
cpp 8-m.cpp 66ms 2.4ms 1.3MB 107ms 0ms g++ 12.2.0
cpp 8-m.cpp 69ms 0.9ms 3.6MB 110ms 0ms clang++ 14.0.0
c 4-m.c 93ms 3.3ms 1.3MB 157ms 0ms gcc 12.2.0
c 4-m.c 111ms 0.6ms 3.1MB 190ms 0ms clang 14.0.0
c 5-im.c 114ms 0.7ms 1.3MB 200ms 0ms gcc 12.2.0
c 6-im.c 114ms 2.8ms 1.3MB 200ms 0ms gcc 12.2.0
c 6-im.c 117ms 3.2ms 3.3MB 203ms 0ms clang 14.0.0
cpp 6-im.cpp 127ms 0.2ms 3.6MB 227ms 0ms clang++ 14.0.0
cpp 6-im.cpp 128ms 2.0ms 1.3MB 227ms 0ms g++ 12.2.0
c 3-m.c 130ms 1.2ms 3.1MB 230ms 0ms clang 14.0.0
c 3-m.c 131ms 0.9ms 1.3MB 237ms 0ms gcc 12.2.0
c 5-im.c 142ms 1.3ms 3.1MB 253ms 0ms clang 14.0.0