The Computer Language
Benchmarks Game

Rust programs versus C gcc

by benchmark task performance

reverse-complement
source secs mem gz cpu cpu load
Rust 0.33 268,384 1324 0.61 100% 36% 31% 31%
C gcc 0.42 143,948 812 0.58 15% 26% 98% 2%
k-nucleotide
source secs mem gz cpu cpu load
Rust 5.40 156,208 1627 16.18 86% 99% 66% 51%
C gcc 5.38 129,772 1499 16.37 61% 82% 89% 74%
pidigits
source secs mem gz cpu cpu load
Rust 1.74 7,820 1306 1.74 3% 1% 100% 2%
C gcc 1.73 2,116 448 1.73 1% 99% 1% 0%
fasta
source secs mem gz cpu cpu load
Rust 1.49 18,592 1887 4.64 77% 84% 76% 76%
C gcc 1.33 2,856 2249 5.28 100% 99% 100% 99%
fannkuch-redux
source secs mem gz cpu cpu load
Rust 10.99 20,012 1020 43.08 94% 100% 99% 100%
C gcc 8.97 1,660 910 35.00 98% 94% 99% 100%
spectral-norm
source secs mem gz cpu cpu load
Rust 2.44 20,048 817 9.60 98% 99% 98% 99%
C gcc 1.99 1,824 1139 7.88 99% 99% 99% 100%
n-body
source secs mem gz cpu cpu load
Rust 12.82 5,672 1540 12.81 0% 0% 100% 1%
C gcc 9.96 1,016 1490 9.95 1% 1% 1% 100%
regex-redux
source secs mem gz cpu cpu load
Rust 2.73 175,372 701 4.24 19% 19% 100% 20%
C gcc 1.45 155,768 1230 4.03 61% 64% 56% 100%
binary-trees
source secs mem gz cpu cpu load
Rust 4.66 184,704 717 17.32 92% 91% 91% 100%
C gcc 2.38 131,728 836 7.70 98% 87% 73% 68%
mandelbrot
source secs mem gz cpu cpu load
Rust 4.93 71,144 868 19.48 99% 98% 100% 100%
C gcc 1.65 32,684 1135 6.53 99% 99% 100% 99%
Rust

rustc 1.19.0 (0ade33941 2017-07-17)

C gcc

gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406