The Computer Language
Benchmarks Game

Java versus Substrate VM 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.

pidigits
source secs mem gz busy cpu load
Java 3.07 39,184 938 3.29 99% 3% 4% 1%
Substrate VM 28.24 267,884 800 28.40 0% 100% 0% 1%
binary-trees
source secs mem gz busy cpu load
Java 8.29 966,764 835 27.76 86% 80% 86% 83%
Substrate VM 20.36 718,500 835 42.84 34% 50% 52% 75%
regex-redux
source secs mem gz busy cpu load
Java 10.25 634,884 740 30.23 68% 95% 67% 65%
Substrate VM 24.95 1,351,092 929 51.17 43% 31% 99% 32%
reverse-complement
source secs mem gz busy cpu load
Java 3.26 738,800 2183 7.49 44% 63% 73% 48%
Substrate VM 5.80 963,136 2183 9.71 58% 23% 22% 65%
k-nucleotide
source secs mem gz busy cpu load
Java 9.06 435,240 1812 28.35 98% 73% 72% 69%
Substrate VM 14.79 589,992 1812 44.18 98% 66% 67% 68%
fannkuch-redux
source secs mem gz busy cpu load
Java 17.93 34,616 1282 70.89 98% 100% 98% 99%
Substrate VM 25.34 2,956 1282 100.59 100% 100% 99% 98%
spectral-norm
source secs mem gz busy cpu load
Java 4.20 36,636 950 16.37 97% 98% 97% 97%
Substrate VM 5.56 4,236 950 21.92 98% 99% 99% 98%
n-body
source secs mem gz busy cpu load
Java 21.91 35,356 1429 22.28 100% 0% 0% 1%
Substrate VM 25.83 3,040 1489 25.98 0% 0% 1% 100%
mandelbrot
source secs mem gz busy cpu load
Java 6.90 78,956 796 27.14 99% 98% 98% 98%
Substrate VM 7.80 35,380 802 31.04 99% 99% 99% 100%
fasta
source secs mem gz busy cpu load
Java 2.24 44,876 2473 6.13 18% 79% 79% 97%
Substrate VM 1.80 7,120 2473 6.80 94% 93% 98% 93%
Java

openjdk 13 2019-09-17
OpenJDK Runtime Environment (build 13+33)
OpenJDK 64-Bit Server VM (build 13+33, mixed mode, sharing)

Substrate VM

javac 1.8.0_212
GraalVM Version 19.0.0 CE