Brakeman performance

gistfile1.txt

jruby 1.6.5 (ruby-1.8.7-p330) (2011-10-25 9dcd388) (Java HotSpot(TM) Client VM 1.6.0_26) [linux-i386-java]

Single core, no threads, Linux:

jruby 1.6.5:     60.91 user 279.93 system 7:13.53 elapsed 78% CPU
   --server:     60.51 user 175.19 system 4:55.54 elapsed 79% CPU
ruby 1.9.2-p290: 61.11 user 17.47  system 1:31.40 elapsed 85% CPU

Single core, with threads, Linux:

jruby 1.6.5:     60.15 user 281.74 system 6:18.44 elapsed 90% CPU
   --server:     60.13 user 172.11 system 4:51.94 elapsed 79% CPU
ruby 1.9.2-p290: 61.55 user 18.00  system 1:29.63 elapsed 88% CPU

jruby 1.6.5 (ruby-1.8.7-p330) (2011-10-25 9dcd388) (Java HotSpot(TM) Client VM 1.6.0_29) [Windows 7-x86-java]

Dual core, no threads, Windows:

jruby 1.6.5:     5:05.749 elapsed
ruby 1.9.2-p180: 1:06.715 elapsed

Dual core, with threads, Windows:

jruby 1.6.5:     4:58.68  elapsed
ruby 1.9.2-p180: 55.850   elapsed

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Running tests (cd test; ruby test.rb)

Single core, no threads, $VERBOSE = nil, Linux:

jruby 1.6.5:     7.43 user 2.75 system 0:10.91 elapsed 93% CPU
ruby 1.9.2-p280: 2.97 user 0.55 system 0:04.01 elapsed 88% CPU

@headius thanks for your interest in this. All you need to do is run Brakeman (available as a gem) against a medium/large Rails project if you have one available. The -n option turns off threads.