The Computer Language
Benchmarks Game

VW Smalltalk versus Java 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.

binary-trees
source secs mem gz busy cpu load
VW Smalltalk 32.47 376,016 930 81.92 61% 89% 34% 68%
Java 8.32 953,620 835 28.37 95% 87% 81% 77%
pidigits
source secs mem gz busy cpu load
VW Smalltalk 15.24 55,612 753 15.31 0% 66% 34% 0%
Java 3.07 39,320 938 3.31 2% 5% 3% 98%
spectral-norm
source secs mem gz busy cpu load
VW Smalltalk 33.72 247,024 1047 111.66 81% 83% 83% 83%
Java 4.19 36,680 950 16.31 98% 97% 97% 98%
n-body
source secs mem gz busy cpu load
VW Smalltalk 196.18 55,120 1782 198.51 0% 100% 0% 1%
Java 21.95 35,604 1429 22.75 2% 1% 100% 1%
fasta
source secs mem gz busy cpu load
VW Smalltalk 48.48 55,160 1539 49.05 0% 16% 84% 1%
Java 2.22 45,172 2473 5.99 61% 50% 98% 60%
mandelbrot
source secs mem gz busy cpu load
VW Smalltalk 167.01 176,972 929 580.60 89% 96% 75% 88%
Java 6.83 79,108 796 26.86 97% 99% 99% 99%
fannkuch-redux
source secs mem gz busy cpu load
VW Smalltalk 714.19 55,084 916 722.32 33% 13% 55% 0%
Java 14.33 34,888 1282 56.56 99% 98% 99% 98%
k-nucleotide
source secs mem gz busy cpu load
VW Smalltalk 652.61 385,272 1317 658.10 90% 1% 0% 10%
Java 9.33 447,976 1812 29.36 73% 83% 82% 77%
reverse-complement
source secs mem gz busy cpu load
VW Smalltalk   Bad Output
Java 3.16 712,368 2183 7.08 65% 47% 42% 70%
regex-redux
source secs mem gz busy cpu load
  No program contribute your program
Java 10.31 644,560 740 31.47 72% 72% 92% 70%
VW Smalltalk

VisualWorks® 8.3 Aug 19 2017

Java

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