C++ VS Rust benchmarks

Current benchmark data was generated on Wed Sep 28 2022, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][2 cores] Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz (Model 106)

* -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.)

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 719ms 6.5ms 0.7MB 1387ms 0ms rustc 1.64.0
cpp 1-im.cpp 752ms 3.8ms 1.0MB 1450ms 0ms g++ 12.2.0
cpp 1-im.cpp 769ms 6.3ms 3.6MB 1493ms 0ms clang++ 11.0.0
rust 2-im.rs 1078ms 2.5ms 0.7MB 2070ms 0ms rustc 1.64.0
rust 5-m.rs 1233ms 12ms 0.7MB 2380ms 0ms rustc 1.64.0
rust 3-i.rs 1432ms 1.8ms 0.6MB 1420ms 0ms rustc 1.64.0
rust 1-m.rs 1946ms 14ms 0.7MB 3787ms 0ms rustc 1.64.0
rust 2-i.rs 1996ms 0.5ms 0.6MB 1980ms 0ms rustc 1.64.0
rust 1.rs 3862ms 80ms 0.6MB 3850ms 0ms rustc 1.64.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 66ms 1.6ms 0.7MB 110ms 0ms rustc 1.64.0
cpp 1-im.cpp 72ms 0.8ms 1.0MB 120ms 0ms g++ 12.2.0
cpp 1-im.cpp 73ms 0.6ms 3.6MB 120ms 0ms clang++ 11.0.0
rust 2-im.rs 96ms 0.1ms 0.7MB 160ms 0ms rustc 1.64.0
rust 5-m.rs 112ms 2.9ms 0.7MB 190ms 0ms rustc 1.64.0
rust 3-i.rs 120ms 0.7ms 0.6MB 110ms 0ms rustc 1.64.0
rust 2-i.rs 166ms 0.6ms 0.6MB 160ms 0ms rustc 1.64.0
rust 1-m.rs 173ms 2.7ms 0.7MB 310ms 0ms rustc 1.64.0
rust 1.rs 323ms 1.7ms 0.6MB 310ms 0ms rustc 1.64.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 1.5ms 0.3ms 2.0MB 0ms 0ms rustc 1.64.0
cpp 1.cpp 2.2ms 0.9ms 1.1MB 0ms 0ms clang++ 11.0.0
cpp 1.cpp 2.5ms 1.1ms 1.0MB 0ms 0ms g++ 12.2.0
rust 1.rs 2.8ms 1.5ms 2.0MB 0ms 0ms rustc 1.66.0-nightly

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 225ms 0.2ms 0.9MB 210ms 0ms g++ 12.2.0
rust 4-i.rs 252ms 0.3ms 0.6MB 240ms 0ms rustc 1.64.0
cpp 0-i.cpp 257ms 0.5ms 1.1MB 243ms 0ms clang++ 11.0.0
rust 7-i.rs 305ms 1.6ms 0.6MB 290ms 0ms rustc 1.64.0
rust 3.rs 338ms 0.5ms 0.7MB 330ms 0ms rustc 1.66.0-nightly
cpp 1.cpp 339ms 1.0ms 0.9MB 330ms 0ms g++ 12.2.0
rust 2.rs 343ms 4.2ms 0.6MB 333ms 0ms rustc 1.64.0
rust 1.rs 383ms 0.6ms 0.6MB 370ms 0ms rustc 1.64.0
cpp 1.cpp 384ms 0.4ms 1.1MB 373ms 0ms clang++ 11.0.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 25ms 0.3ms 1.0MB 20ms 0ms g++ 12.2.0
rust 4-i.rs 27ms 0.4ms 0.6MB 20ms 0ms rustc 1.64.0
cpp 0-i.cpp 28ms 0.3ms 1.1MB 20ms 0ms clang++ 11.0.0
rust 7-i.rs 33ms 0.3ms 0.6MB 27ms 0ms rustc 1.64.0
rust 3.rs 36ms 0.6ms 0.6MB 27ms 0ms rustc 1.66.0-nightly
rust 2.rs 36ms 0.4ms 0.6MB 30ms 0ms rustc 1.64.0
cpp 1.cpp 37ms 0.2ms 1.0MB 30ms 0ms g++ 12.2.0
cpp 1.cpp 42ms 0.7ms 1.1MB 30ms 0ms clang++ 11.0.0
rust 1.rs 42ms 1.0ms 0.6MB 30ms 0ms rustc 1.64.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 415ms 6.4ms 7.5MB 403ms 0ms clang++ 11.0.0
rust 2.rs 461ms 8.7ms 6.7MB 447ms 0ms rustc 1.64.0
rust 1.rs 633ms 88ms 40.8MB 617ms 3ms rustc 1.64.0
cpp 1.cpp 648ms 9.1ms 7.7MB 633ms 0ms g++ 12.2.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 94ms 0.8ms 3.7MB 87ms 0ms clang++ 11.0.0
rust 2.rs 105ms 0.5ms 3.2MB 97ms 0ms rustc 1.64.0
rust 1.rs 130ms 6.1ms 11.7MB 117ms 0ms rustc 1.64.0
cpp 1.cpp 154ms 0.7ms 4.0MB 140ms 0ms g++ 12.2.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 1057ms 1.7ms 2.1MB 2053ms 0ms rustc 1.64.0
rust 8-m.rs 1058ms 1.0ms 2.5MB 2050ms 0ms rustc 1.66.0-nightly
cpp 8-m.cpp 1060ms 1.0ms 3.1MB 2073ms 0ms clang++ 11.0.0
cpp 7-m.cpp 1061ms 2.4ms 3.2MB 2073ms 0ms clang++ 11.0.0
cpp 8-m.cpp 1062ms 1.1ms 0.9MB 2080ms 0ms g++ 12.2.0
cpp 7-m.cpp 1065ms 1.7ms 1.0MB 2083ms 0ms g++ 12.2.0
rust 8.rs 2060ms 0.5ms 2.5MB 2050ms 0ms rustc 1.66.0-nightly
rust 7.rs 2061ms 1.5ms 2.2MB 2050ms 0ms rustc 1.64.0
rust 2-m.rs 2124ms 0.5ms 2.1MB 4147ms 0ms rustc 1.64.0
cpp 6-im.cpp 2234ms 1.6ms 1.0MB 4400ms 0ms g++ 12.2.0
cpp 6-im.cpp 2245ms 15ms 3.2MB 4407ms 0ms clang++ 11.0.0
rust 2.rs timeout 0.0ms 0.0MB 0ms 0ms rustc 1.64.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 272ms 0.9ms 0.7MB 507ms 0ms rustc 1.64.0
rust 8-m.rs 274ms 0.6ms 2.2MB 510ms 0ms rustc 1.66.0-nightly
cpp 8-m.cpp 274ms 0.2ms 1.0MB 520ms 0ms g++ 12.2.0
cpp 8-m.cpp 275ms 0.2ms 3.2MB 517ms 0ms clang++ 11.0.0
cpp 7-m.cpp 276ms 1.7ms 3.2MB 517ms 0ms clang++ 11.0.0
cpp 7-m.cpp 277ms 2.5ms 1.0MB 520ms 0ms g++ 12.2.0
rust 7.rs 517ms 0.3ms 0.6MB 510ms 0ms rustc 1.64.0
rust 8.rs 517ms 0.5ms 2.1MB 507ms 0ms rustc 1.66.0-nightly
rust 2-m.rs 549ms 13ms 2.3MB 1033ms 3ms rustc 1.64.0
cpp 6-im.cpp 568ms 2.1ms 0.9MB 1100ms 0ms g++ 12.2.0
cpp 6-im.cpp 568ms 1.5ms 3.2MB 1097ms 0ms clang++ 11.0.0
rust 2.rs 1707ms 1.9ms 0.6MB 1697ms 0ms rustc 1.64.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 74ms 1.4ms 0.7MB 123ms 0ms rustc 1.64.0
rust 8-m.rs 75ms 1.4ms 2.2MB 127ms 0ms rustc 1.66.0-nightly
cpp 8-m.cpp 76ms 1.8ms 3.2MB 127ms 0ms clang++ 11.0.0
cpp 7-m.cpp 76ms 1.1ms 3.2MB 127ms 0ms clang++ 11.0.0
cpp 8-m.cpp 77ms 0.8ms 1.0MB 130ms 0ms g++ 12.2.0
cpp 7-m.cpp 77ms 0.6ms 1.0MB 130ms 0ms g++ 12.2.0
rust 8.rs 131ms 0.2ms 2.2MB 120ms 0ms rustc 1.66.0-nightly
rust 7.rs 132ms 0.8ms 1.9MB 120ms 0ms rustc 1.64.0
rust 2-m.rs 143ms 0.2ms 0.7MB 257ms 0ms rustc 1.64.0
cpp 6-im.cpp 151ms 0.1ms 1.0MB 277ms 0ms g++ 12.2.0
cpp 6-im.cpp 151ms 2.2ms 3.2MB 273ms 0ms clang++ 11.0.0
rust 2.rs 429ms 0.1ms 0.6MB 420ms 0ms rustc 1.64.0