The Computer Language
Benchmarks Game

Rust programs versus C gcc

by benchmark task performance

reverse-complement
source secs mem gz cpu cpu load
Rust 0.33 268,344 1324 0.61 34% 100% 31% 28%
C gcc 0.42 143,948 812 0.58 15% 26% 98% 2%
k-nucleotide
source secs mem gz cpu cpu load
Rust 5.27 156,408 1728 17.06 77% 91% 68% 91%
C gcc 5.38 129,772 1499 16.37 61% 82% 89% 74%
pidigits
source secs mem gz cpu cpu load
Rust 1.74 7,892 1420 1.74 0% 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 1.48 18,524 1887 4.56 83% 76% 76% 75%
C gcc 1.33 2,856 2249 5.28 100% 99% 100% 99%
mandelbrot
source secs mem gz cpu cpu load
Rust 1.93 52,796 1160 7.65 100% 99% 100% 99%
C gcc 1.65 32,684 1135 6.53 99% 99% 100% 99%
spectral-norm
source secs mem gz cpu cpu load
Rust 2.34 20,064 817 9.27 100% 100% 100% 100%
C gcc 1.99 1,824 1139 7.88 99% 99% 99% 100%
fannkuch-redux
source secs mem gz cpu cpu load
Rust 10.82 18,084 1020 42.18 99% 100% 93% 98%
C gcc 8.97 1,660 910 35.00 98% 94% 99% 100%
n-body
source secs mem gz cpu cpu load
Rust 13.08 5,704 1540 13.08 0% 1% 1% 100%
C gcc 9.96 1,016 1490 9.95 1% 1% 1% 100%
binary-trees
source secs mem gz cpu cpu load
Rust 4.43 196,468 717 16.56 92% 92% 100% 93%
C gcc 2.38 131,728 836 7.70 98% 87% 73% 68%
regex-redux
source secs mem gz cpu cpu load
Rust 2.83 179,428 804 4.22 88% 17% 17% 29%
C gcc 1.45 155,768 1230 4.03 61% 64% 56% 100%
Rust

rustc 1.18.0 (03fc9d622 2017-06-06)

C gcc

gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406