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The great Ruby Showdown
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chrismdp
February 22, 2012
Technology
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660
The great Ruby Showdown
How do the different Rubies out there perform with a non trivial ruby application?
chrismdp
February 22, 2012
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Transcript
The great Ruby Showdown How do the different Rubies out
there perform with a non trivial ruby application? Chris Parsons - @chrismdp Wednesday, 22 February 12
Battleship http://github.com/ threedaymonk/ battleship Wednesday, 22 February 12
Only one round No display GuntherPlayer with fixed random seed
Running on 2009 MBP http://github.com/ chrismdp/battleship My changes Wednesday, 22 February 12
Fixed random seed doesn’t work! Different Rubies do random differently
Need to perform 50 ‘ticks’ instead Also different startup times was a headache Lessons Wednesday, 22 February 12
The players mri 1.8.7 mri 1.9.2 mri 1.9.3 jruby maglev
rubinius macruby Wednesday, 22 February 12
Ruby 1.8.7 • No show - code doesn’t work •
You shouldn’t be using it anyway • Ruby 1.9.2 has out and stable since summer 2010 Wednesday, 22 February 12
MacRuby 0.10 • Ruby based on the Objective-C Runtime •
Long startup time • 442.65s (!!) • 431.90s (!!) Wednesday, 22 February 12
Rubinius (head) • Used: RBXOPT=-X19 rbx -v (can default to
1.9 too) • Long startup time • 56.41s • 52.35s • 90.16s (!) • 94.67s (!!) • 63.07s - very variable! Wednesday, 22 February 12
Maglev (head) • Based on vm-ware’s GemStone virtual machine •
Can “transparently manage very large datasets” • 44.91s • 44.99s • 53.02s • 45.53s Wednesday, 22 February 12
Ruby 1.9.2 • The ‘standard’ during the tournament • Was
focused on a ‘complete’ version of ruby 1.9 • 28.50s • 28.74s • 28.51s • 28.97s Wednesday, 22 February 12
Jruby (1.9) • A number of changes needed to the
app Not an ‘out the box’ change, but still worked after tweaks. • Used: JRUBY_OPTS='--1.9 --server -J-Xmx1024m' • Long startup time: ~ 20-30 seconds • 25.93s • 25.05s • 27.60s • 26.26s Wednesday, 22 February 12
Ruby 1.9.3 • Better GC - doesn’t stop the world
for as long • Focused on a better implementation rather than compliance • 23.64s • 23.80s • 26.30s • 24.67s Wednesday, 22 February 12
The Obligatory Graph mri 1.9.3 JRuby 1.9 mri 1.9.2 Maglev
Rubinius mri 1.8.7 0 20 40 60 80 (lower is better) Wednesday, 22 February 12
The Obligatory Graph mri 1.9.3 JRuby 1.9 mri 1.9.2 Maglev
Rubinius MacRuby 10 mri 1.8.7 0 125 250 375 500 (lower is better) Wednesday, 22 February 12
Conclusions Wednesday, 22 February 12
Use 1.9.3 Wednesday, 22 February 12
JRuby 1.9 Slow to start, but just as good Wednesday,
22 February 12
MRI 1.9.2 Ultra-stable Wednesday, 22 February 12
MacRuby Rubinius Need work Wednesday, 22 February 12
Maglev The new kid Looks promising Wednesday, 22 February 12
~ The End ~ Chris Parsons @chrismdp Wednesday, 22 February
12