The Computer Language
Benchmarks Game

Haskell GHC versus C gcc fastest programs

Back in April 2010, Russ Cox charitably suggested that only fannkuch-redux, fasta, k-nucleotide, mandlebrot, nbody, reverse-complement and spectral-norm were close to fair comparisons. As someone who implemented programming languages, his interest was "measuring the quality of the generated code when both compilers are presented with what amounts to the same program."

Differences in approach - to memory management, parallel programming, regex, arbitrary precision arithmetic, implementation technique - don't fit in that kind-of fair comparison — but we still have to deal with them.

These are only the fastest programs. There may be additional measurements for programs which seem more-like a fair comparison to you. Always look at the source code.

regex-redux
source secs mem gz busy cpu load
Haskell GHC 1.73 308,544 2213 3.98 64% 76% 45% 45%
C gcc 1.46 152,236 1397 3.43 43% 100% 45% 48%
fasta
source secs mem gz busy cpu load
Haskell GHC 1.88 8,332 1998 4.80 64% 65% 64% 63%
C gcc 1.36 2,912 2268 5.42 99% 100% 99% 99%
spectral-norm
source secs mem gz busy cpu load
Haskell GHC 4.05 3,900 987 15.74 97% 97% 97% 98%
C gcc 1.98 1,252 1139 7.88 99% 100% 99% 99%
fannkuch-redux
source secs mem gz busy cpu load
Haskell GHC 18.12 4,264 842 71.41 96% 100% 100% 99%
C gcc 8.61 880 910 33.96 95% 100% 99% 100%
pidigits
source secs mem gz busy cpu load
Haskell GHC 4.20 10,248 379 5.32 86% 9% 8% 23%
C gcc 1.75 2,660 452 2.02 1% 100% 14% 1%
n-body
source secs mem gz busy cpu load
Haskell GHC 21.96 4,160 1883 86.83 98% 99% 98% 100%
C gcc 7.49 8 1391 7.56 0% 0% 100% 1%
reverse-complement
source secs mem gz busy cpu load
Haskell GHC 5.93 501,548 1020 7.92 100% 12% 10% 12%
C gcc 1.78 994,532 1438 4.02 42% 96% 46% 43%
binary-trees
source secs mem gz busy cpu load
Haskell GHC 13.52 493,528 592 50.12 92% 90% 92% 97%
C gcc 3.48 168,744 809 11.47 99% 74% 79% 79%
mandelbrot
source secs mem gz busy cpu load
Haskell GHC 11.60 37,756 782 46.30 100% 100% 100% 100%
C gcc 1.65 26,204 1135 6.56 99% 100% 99% 99%
k-nucleotide
source secs mem gz busy cpu load
Haskell GHC 35.69 756,200 1486 126.21 88% 88% 87% 90%
C gcc 5.01 130,104 1506 16.41 84% 100% 84% 59%
Haskell GHC

The Glorious Glasgow Haskell Compilation System,
version 8.6.5

C gcc

gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0