Programming Language and compiler
Benchmarks

Rust VS C++ benchmarks

Current benchmark data was generated on Sat Nov 16 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

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 1.0ms 0.0ms 1.4MB 0ms 0ms g++ 11.4.0
rust 1.rs 1.3ms 0.1ms 1.8MB 0ms 0ms rustc 1.84.0-nightly
rust 1.rs 1.3ms 0.1ms 1.8MB 0ms 0ms rustc 1.82.0
cpp 1.cpp 1.4ms 0.1ms 2.3MB 0ms 0ms clang++ 14.0.0-1ubuntu1.1

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 9.rs 252ms 8.8ms 4.9MB 243ms 0ms rustc 1.84.0-nightly
rust 8.rs 306ms 1.5ms 4.9MB 297ms 0ms rustc 1.82.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 9.rs 13ms 0.1ms 2.0MB 0ms 0ms rustc 1.84.0-nightly
rust 8.rs 15ms 0.2ms 1.9MB 0ms 0ms rustc 1.82.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 165ms 2.7ms 1.8MB 153ms 0ms rustc 1.82.0
cpp 0-i.cpp 166ms 0.2ms 1.5MB 160ms 0ms g++ 11.4.0
cpp 0-i.cpp 170ms 0.3ms 2.3MB 160ms 0ms clang++ 14.0.0-1ubuntu1.1
rust 7-i.rs 236ms 1.4ms 1.9MB 230ms 0ms rustc 1.82.0
rust 1.rs 239ms 0.6ms 1.8MB 223ms 0ms rustc 1.82.0
rust 2.rs 278ms 0.5ms 1.8MB 270ms 0ms rustc 1.82.0
rust 3.rs 280ms 0.3ms 1.8MB 270ms 0ms rustc 1.84.0-nightly
cpp 1.cpp 313ms 1.4ms 1.9MB 300ms 0ms g++ 11.4.0
cpp 1.cpp 314ms 0.4ms 2.3MB 300ms 0ms clang++ 14.0.0-1ubuntu1.1

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 18ms 0.1ms 1.5MB 10ms 0ms g++ 11.4.0
rust 4-i.rs 19ms 0.2ms 1.8MB 10ms 0ms rustc 1.82.0
cpp 0-i.cpp 19ms 0.1ms 2.3MB 10ms 0ms clang++ 14.0.0-1ubuntu1.1
rust 7-i.rs 26ms 0.3ms 1.9MB 17ms 0ms rustc 1.82.0
rust 1.rs 26ms 0.3ms 1.8MB 20ms 0ms rustc 1.82.0
rust 3.rs 30ms 0.1ms 1.9MB 20ms 0ms rustc 1.84.0-nightly
rust 2.rs 30ms 0.0ms 1.8MB 20ms 0ms rustc 1.82.0
cpp 1.cpp 34ms 0.8ms 1.8MB 23ms 0ms g++ 11.4.0
cpp 1.cpp 34ms 0.5ms 2.3MB 27ms 0ms clang++ 14.0.0-1ubuntu1.1

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 470ms 3.4ms 5.4MB 1820ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 484ms 2.2ms 4.2MB 1877ms 0ms g++ 11.4.0
rust 8-m.rs 496ms 0.1ms 4.5MB 1907ms 0ms rustc 1.84.0-nightly
rust 7-m.rs 498ms 0.3ms 4.2MB 1917ms 3ms rustc 1.82.0
cpp 6-im.cpp 931ms 22ms 7.4MB 3610ms 10ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 932ms 17ms 4.3MB 3617ms 0ms g++ 11.4.0
rust 8.rs 1010ms 2.8ms 2.4MB 1000ms 0ms rustc 1.84.0-nightly
rust 2-m.rs 1936ms 2.2ms 4.1MB 7590ms 7ms rustc 1.82.0
rust 7.rs 2078ms 11ms 1.9MB 2067ms 0ms rustc 1.82.0
rust 2.rs 4188ms 1.3ms 2.0MB 4177ms 0ms rustc 1.82.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 125ms 0.5ms 5.4MB 450ms 0ms clang++ 14.0.0-1ubuntu1.1
rust 8-m.rs 128ms 0.4ms 4.2MB 467ms 3ms rustc 1.84.0-nightly
rust 7-m.rs 128ms 0.2ms 4.1MB 467ms 0ms rustc 1.82.0
cpp 8-m.cpp 129ms 0.9ms 4.1MB 473ms 0ms g++ 11.4.0
cpp 6-im.cpp 239ms 2.6ms 5.4MB 897ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 241ms 2.7ms 4.2MB 917ms 0ms g++ 11.4.0
rust 8.rs 255ms 0.6ms 2.1MB 247ms 0ms rustc 1.84.0-nightly
rust 2-m.rs 488ms 1.2ms 4.1MB 1873ms 7ms rustc 1.82.0
rust 7.rs 529ms 14ms 1.8MB 517ms 0ms rustc 1.82.0
rust 2.rs 1049ms 1.1ms 1.9MB 1040ms 0ms rustc 1.82.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 36ms 0.3ms 6.1MB 113ms 0ms rustc 1.82.0
rust 8-m.rs 36ms 0.4ms 6.1MB 113ms 0ms rustc 1.84.0-nightly
cpp 8-m.cpp 38ms 0.7ms 7.3MB 107ms 3ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 40ms 1.0ms 4.0MB 127ms 0ms g++ 11.4.0
rust 8.rs 66ms 0.9ms 2.0MB 57ms 0ms rustc 1.84.0-nightly
cpp 6-im.cpp 67ms 0.4ms 5.4MB 223ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 69ms 1.4ms 4.0MB 233ms 0ms g++ 11.4.0
rust 2-m.rs 126ms 0.2ms 4.1MB 467ms 0ms rustc 1.82.0
rust 7.rs 135ms 3.0ms 1.8MB 123ms 0ms rustc 1.82.0
rust 2.rs 266ms 1.0ms 1.9MB 253ms 0ms rustc 1.82.0

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 1243ms 6.8ms 33.8MB 1220ms 7ms rustc 1.82.0
rust 5.rs 1316ms 2.7ms 33.8MB 1293ms 7ms rustc 1.82.0
rust 3.rs 1481ms 17ms 49.8MB 1453ms 17ms rustc 1.82.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 119ms 2.8ms 5.8MB 110ms 0ms rustc 1.82.0
rust 5.rs 126ms 3.2ms 5.8MB 117ms 0ms rustc 1.82.0
rust 3.rs 141ms 2.4ms 7.8MB 130ms 0ms rustc 1.82.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-m.rs 523ms 46ms 11.1MB 1937ms 87ms rustc 1.82.0
rust 5-m.rs 676ms 26ms 7.5MB 2553ms 73ms rustc 1.82.0
rust 1-m.rs 966ms 13ms 10.4MB 3450ms 323ms rustc 1.82.0
rust 3.rs 1129ms 26ms 9.3MB 1077ms 40ms rustc 1.82.0
rust 4.rs 1909ms 15ms 7.5MB 1890ms 0ms rustc 1.82.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5-m.rs 50ms 2.2ms 7.2MB 143ms 10ms rustc 1.82.0
rust 3-m.rs 50ms 3.1ms 6.4MB 157ms 7ms rustc 1.82.0
rust 3.rs 71ms 2.4ms 4.0MB 57ms 0ms rustc 1.82.0
rust 1-m.rs 80ms 7.5ms 9.8MB 233ms 43ms rustc 1.82.0
rust 4.rs 115ms 3.7ms 3.4MB 103ms 0ms rustc 1.82.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 117ms 2.2ms 3.6MB 107ms 0ms rustc 1.82.0
rust 2.rs 421ms 2.0ms 3.6MB 410ms 0ms rustc 1.82.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 33ms 0.9ms 2.9MB 23ms 0ms rustc 1.82.0
rust 2.rs 78ms 1.3ms 3.0MB 70ms 0ms rustc 1.82.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 403ms 8.3ms 4.5MB 1543ms 0ms g++ 11.4.0
cpp 1-im.cpp 405ms 7.4ms 7.9MB 1547ms 3ms clang++ 14.0.0-1ubuntu1.1
rust 3-im.rs 411ms 7.0ms 4.0MB 1563ms 0ms rustc 1.82.0
rust 5-m.rs 575ms 3.2ms 4.0MB 2170ms 0ms rustc 1.82.0
rust 2-im.rs 636ms 0.6ms 6.0MB 2410ms 0ms rustc 1.82.0
rust 1-m.rs 994ms 4.8ms 6.0MB 3793ms 0ms rustc 1.82.0
rust 3-i.rs 1492ms 0.6ms 1.9MB 1480ms 0ms rustc 1.82.0
rust 2-i.rs 1785ms 3.5ms 1.8MB 1777ms 0ms rustc 1.82.0
rust 1.rs 2696ms 3.0ms 1.8MB 2687ms 0ms rustc 1.82.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 38ms 0.2ms 4.0MB 120ms 0ms rustc 1.82.0
cpp 1-im.cpp 42ms 1.0ms 5.9MB 123ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1-im.cpp 44ms 0.9ms 4.5MB 140ms 0ms g++ 11.4.0
rust 5-m.rs 56ms 0.5ms 4.0MB 173ms 0ms rustc 1.82.0
rust 2-im.rs 61ms 2.5ms 6.0MB 197ms 0ms rustc 1.82.0
rust 1-m.rs 89ms 2.0ms 4.0MB 303ms 0ms rustc 1.82.0
rust 3-i.rs 125ms 0.2ms 1.9MB 113ms 0ms rustc 1.82.0
rust 2-i.rs 151ms 0.2ms 1.8MB 140ms 0ms rustc 1.82.0
rust 1.rs 228ms 2.5ms 1.8MB 217ms 0ms rustc 1.82.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5c-m.rs 89ms 1.0ms 4.8MB 240ms 3ms rustc 1.82.0
rust 5-m.rs 99ms 1.4ms 4.8MB 323ms 0ms rustc 1.82.0
rust 1c.rs 162ms 0.6ms 1.9MB 150ms 0ms rustc 1.82.0
rust 1.rs 195ms 0.9ms 1.9MB 180ms 0ms rustc 1.82.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5c-m.rs 16ms 0.4ms 4.8MB 23ms 0ms rustc 1.82.0
rust 5-m.rs 17ms 0.8ms 4.9MB 23ms 0ms rustc 1.82.0
rust 1c.rs 19ms 0.6ms 1.9MB 10ms 0ms rustc 1.82.0
rust 1.rs 22ms 0.1ms 1.9MB 10ms 0ms rustc 1.82.0

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 334ms 31ms 48.5MB 133ms 340ms rustc 1.82.0
rust 2-http2.rs 406ms 99ms 66.1MB 637ms 483ms rustc 1.82.0
rust 2-m.rs 499ms 44ms 87.2MB 220ms 833ms rustc 1.82.0
rust 1-http2.rs 535ms 89ms 71.7MB 747ms 743ms rustc 1.82.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 93ms 4.5ms 17.2MB 20ms 63ms rustc 1.82.0
rust 2.rs 130ms 8.5ms 31.2MB 37ms 153ms rustc 1.82.0
rust 2-http2.rs 193ms 20ms 27.7MB 263ms 153ms rustc 1.82.0
rust 1-http2.rs 306ms 52ms 35.1MB 673ms 217ms rustc 1.82.0

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5-i.rs 29ms 2.1ms 9.8MB 17ms 0ms rustc 1.82.0
rust 4-i.rs 30ms 2.3ms 7.9MB 17ms 0ms rustc 1.82.0
rust 3.rs 61ms 0.5ms 33.8MB 37ms 13ms rustc 1.82.0
rust 2.rs 64ms 1.7ms 35.5MB 40ms 10ms rustc 1.82.0
rust 1.rs 102ms 2.0ms 69.1MB 53ms 33ms rustc 1.82.0

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5-i.rs 208ms 0.9ms 52.8MB 177ms 13ms rustc 1.82.0
rust 4-i.rs 241ms 2.7ms 54.5MB 200ms 27ms rustc 1.82.0
rust 2.rs 403ms 2.8ms 238.0MB 307ms 80ms rustc 1.82.0
rust 3.rs 414ms 4.2ms 238.3MB 307ms 97ms rustc 1.82.0
rust 1.rs 687ms 5.7ms 551.0MB 437ms 237ms rustc 1.82.0

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 232ms 10ms 30.6MB 683ms 10ms rustc 1.82.0
rust 8.rs 479ms 3.9ms 23.8MB 457ms 7ms rustc 1.82.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 30ms 1.8ms 14.6MB 57ms 3ms rustc 1.82.0
rust 8.rs 60ms 2.9ms 11.6MB 43ms 7ms rustc 1.82.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 42ms 1.1ms 1.9MB 30ms 0ms rustc 1.82.0
rust 1.rs 50ms 12ms 2.0MB 37ms 0ms rustc 1.82.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 155ms 0.3ms 1.9MB 150ms 0ms rustc 1.82.0
rust 1.rs 205ms 20ms 2.0MB 193ms 0ms rustc 1.82.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 26ms 0.5ms 1.9MB 20ms 0ms rustc 1.82.0
rust 1.rs 29ms 0.5ms 1.9MB 20ms 0ms rustc 1.82.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 687ms 1.6ms 33.8MB 663ms 10ms rustc 1.82.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 148ms 2.0ms 9.8MB 133ms 0ms rustc 1.82.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 307ms 2.9ms 40.9MB 290ms 0ms rustc 1.82.0
rust 2.rs 321ms 3.0ms 6.6MB 310ms 0ms rustc 1.82.0
cpp 1.cpp 484ms 2.1ms 7.3MB 470ms 0ms g++ 11.4.0
cpp 1.cpp 530ms 0.3ms 7.7MB 520ms 0ms clang++ 14.0.0-1ubuntu1.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 60ms 3.1ms 11.6MB 50ms 0ms rustc 1.82.0
rust 2.rs 79ms 0.3ms 2.9MB 70ms 0ms rustc 1.82.0
cpp 1.cpp 120ms 2.3ms 3.6MB 110ms 0ms g++ 11.4.0
cpp 1.cpp 132ms 0.8ms 4.0MB 120ms 0ms clang++ 14.0.0-1ubuntu1.1

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 1529ms 13ms 2.9MB 1287ms 217ms rustc 1.82.0
rust 2.rs 1708ms 5.9ms 2.7MB 1613ms 77ms rustc 1.82.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 322ms 1.3ms 2.4MB 293ms 13ms rustc 1.82.0
rust 2.rs 379ms 1.9ms 2.5MB 367ms 0ms rustc 1.82.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 459ms 26ms 80.3MB 473ms 17ms rustc 1.82.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 52ms 2.2ms 11.3MB 47ms 0ms rustc 1.82.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0.rs 117ms 0.1ms 1.9MB 110ms 0ms rustc 1.82.0
rust 1.rs 1418ms 14ms 2.0MB 1403ms 0ms rustc 1.82.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0.rs 32ms 0.9ms 1.8MB 20ms 0ms rustc 1.82.0
rust 1.rs 360ms 1.8ms 2.0MB 347ms 0ms rustc 1.82.0