The Computer Language
Benchmarks Game

Rust programs versus C gcc

by benchmark task performance

reverse-complement
source secs mem gz cpu cpu load
Rust 0.33 270,416 1324 0.62 30% 34% 100% 32%
C gcc 0.42 143,948 812 0.58 15% 26% 98% 2%
pidigits
source secs mem gz cpu cpu load
Rust 1.74 7,888 1306 1.74 2% 1% 0% 100%
C gcc 1.73 2,116 448 1.73 1% 99% 1% 0%
k-nucleotide
source secs mem gz cpu cpu load
Rust 5.56 162,188 1627 16.48 73% 83% 85% 58%
C gcc 5.38 129,772 1499 16.37 61% 82% 89% 74%
fasta
source secs mem gz cpu cpu load
Rust 1.49 18,508 1887 4.58 75% 76% 83% 76%
C gcc 1.33 2,856 2249 5.28 100% 99% 100% 99%
spectral-norm
source secs mem gz cpu cpu load
Rust 2.33 20,068 817 9.26 100% 100% 100% 100%
C gcc 1.99 1,824 1139 7.88 99% 99% 99% 100%
mandelbrot
source secs mem gz cpu cpu load
Rust 2.03 46,668 1332 8.00 100% 99% 99% 99%
C gcc 1.65 32,684 1135 6.53 99% 99% 100% 99%
fannkuch-redux
source secs mem gz cpu cpu load
Rust 11.08 18,032 1020 43.28 93% 100% 100% 99%
C gcc 8.97 1,660 910 35.00 98% 94% 99% 100%
n-body
source secs mem gz cpu cpu load
Rust 12.82 5,692 1540 12.82 100% 1% 1% 1%
C gcc 9.96 1,016 1490 9.95 1% 1% 1% 100%
binary-trees
source secs mem gz cpu cpu load
Rust 4.38 188,656 717 16.31 92% 92% 100% 92%
C gcc 2.38 131,728 836 7.70 98% 87% 73% 68%
regex-redux
source secs mem gz cpu cpu load
Rust 2.88 177,456 804 4.29 17% 17% 100% 17%
C gcc 1.45 155,768 1230 4.03 61% 64% 56% 100%
Rust

rustc 1.20.0 (f3d6973f4 2017-08-27)

C gcc

gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406