# Benchmarking JRuby

**URL:** <https://www.ruby-forum.com/t/benchmarking-jruby/121858>\
**Category:** Ruby\
**Created:** [December 2, 2007, 1:11am UTC](https://www.ruby-forum.com/t/benchmarking-jruby/121858 "2007-12-02T01:11:28Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![headius](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/7c8e57/32.png) [@headius](https://www.ruby-forum.com/u/headius)\
**Post date:** [December 2, 2007, 1:11am UTC](https://www.ruby-forum.com/t/benchmarking-jruby/121858/1 "2007-12-02T01:11:28Z")

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For those of you playing with JRuby, if you run across benchmarks of any  
kind that show JRuby running slower than Ruby 1.8.x, we’d appreciate you  
filing them as bugs:

[http://jira.codehaus.org/browse/JRUBY](http://jira.codehaus.org/browse/JRUBY)

In general, performance in JRuby should be better for normal execution,  
so we’d like to find any remaining performance bottlenecks. Poor  
performance is a bug!

Thanks for your help!

- Charlie

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**Author:** ![headius](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/7c8e57/32.png) [@headius](https://www.ruby-forum.com/u/headius)\
**Post date:** [December 2, 2007, 2:55am UTC](https://www.ruby-forum.com/t/benchmarking-jruby/121858/2 "2007-12-02T02:55:30Z")

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Charles Oliver N. wrote:

> Thanks for your help!
> 
> - Charlie

You’ve got PetStore running faster than 1.8 now??

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**Author:** ![headius](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/7c8e57/32.png) [@headius](https://www.ruby-forum.com/u/headius)\
**Post date:** [December 2, 2007, 3:17am UTC](https://www.ruby-forum.com/t/benchmarking-jruby/121858/3 "2007-12-02T03:17:07Z")

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M. Edward (Ed) Borasky wrote:

> You’ve got PetStore running faster than 1.8 now??

I don’t think it’s quite there…and it ought to be, so there’s  
something slowing it down. Other Rails benchmarks, however, do show  
JRuby running faster. Work continues.

- Charlie

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**Author:** ![headius](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/7c8e57/32.png) [@headius](https://www.ruby-forum.com/u/headius)\
**Post date:** [December 5, 2007, 4:29am UTC](https://www.ruby-forum.com/t/benchmarking-jruby/121858/4 "2007-12-05T04:29:43Z")

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nice timing…

Antonio C. just completed a new run of his Ruby language shootout.  
The Great Ruby  
Shootout[http://antoniocangiano.com/2007/12/03/the-great-ruby-shootout/](http://antoniocangiano.com/2007/12/03/the-great-ruby-shootout/)

Major improvement on Feb’s numbers, impressive stuff.

M

> **[Huikau?](http://blog.huikau.com/)**
>
> ... finding time to write something useful is nontrivial ...

On Dec 1, 2007 7:09 PM, Charles Oliver N. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

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**Author:** ![headius](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/7c8e57/32.png) [@headius](https://www.ruby-forum.com/u/headius)\
**Post date:** [December 5, 2007, 4:44am UTC](https://www.ruby-forum.com/t/benchmarking-jruby/121858/5 "2007-12-05T04:44:56Z")

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Mike McKinney wrote:

> nice timing…
> 
> Antonio C. just completed a new run of his Ruby language shootout.  
> The Great Ruby  
> Shootout[http://antoniocangiano.com/2007/12/03/the-great-ruby-shootout/](http://antoniocangiano.com/2007/12/03/the-great-ruby-shootout/)
> 
> Major improvement on Feb’s numbers, impressive stuff.

Yeah, and Antonio’s numbers don’t even reflect true performance after  
the VM warms up and things JIT. There’s really only about two YARV  
benchmarks we’re slower on now.

- Charlie