The Computer Language
Benchmarks Game

Java programs versus C gcc

by benchmark task performance

k-nucleotide
source secs mem gz cpu cpu load
Java 8.75 385,056 1812 27.09 85% 72% 70% 85%
C gcc 6.67 130,160 1506 19.33 76% 50% 92% 75%
fasta
source secs mem gz cpu cpu load
Java 2.27 43,628 2473 5.93 51% 75% 57% 81%
C gcc 1.32 2,912 2268 5.25 100% 99% 100% 99%
reverse-complement
source secs mem gz cpu cpu load
Java 3.15 680,424 2183 7.07 52% 70% 43% 63%
C gcc 1.78 994,444 1438 3.96 42% 49% 96% 42%
pidigits
source secs mem gz cpu cpu load
Java 3.13 36,984 938 3.36 4% 4% 99% 3%
C gcc 1.74 2,716 452 1.74 100% 1% 1% 2%
fannkuch-redux
source secs mem gz cpu cpu load
Java 18.27 31,820 1282 72.06 99% 99% 98% 98%
C gcc 8.66 980 910 34.22 100% 97% 100% 100%
spectral-norm
source secs mem gz cpu cpu load
Java 4.38 35,388 950 16.80 96% 96% 95% 97%
C gcc 2.00 1,300 569 7.89 99% 99% 100% 99%
n-body
source secs mem gz cpu cpu load
Java 22.17 33,040 1489 22.27 100% 1% 0% 1%
C gcc 9.12 1,176 1490 9.12 1% 100% 2% 2%
binary-trees
source secs mem gz cpu cpu load
Java 8.39 933,808 835 28.28 82% 86% 84% 88%
C gcc 2.44 133,956 836 7.57 80% 65% 68% 100%
mandelbrot
source secs mem gz cpu cpu load
Java 6.10 76,520 796 23.59 97% 98% 98% 96%
C gcc 1.64 29,424 1135 6.53 99% 100% 100% 100%
regex-redux
source secs mem gz cpu cpu load
Java 10.51 573,972 929 31.30 70% 73% 70% 86%
C gcc 1.48 152,352 1230 4.05 59% 99% 57% 61%
Java

java 10 2018-03-20
Java(TM) SE Runtime Environment 18.3 (build 10+46)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10+46, mixed mode)

C gcc

gcc (Ubuntu 7.2.0-8ubuntu3) 7.2.0