# Help with Rails Vs Grails benchmark comparison

**URL:** <https://www.ruby-forum.com/t/help-with-rails-vs-grails-benchmark-comparison/90051>\
**Category:** Rails\
**Created:** [March 25, 2007, 6:44pm UTC](https://www.ruby-forum.com/t/help-with-rails-vs-grails-benchmark-comparison/90051 "2007-03-25T18:44:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![kate\_rhodes](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/2bfe46/32.png) [@kate\_rhodes](https://www.ruby-forum.com/u/kate_rhodes)\
**Post date:** [March 25, 2007, 6:44pm UTC](https://www.ruby-forum.com/t/help-with-rails-vs-grails-benchmark-comparison/90051/1 "2007-03-25T18:44:45Z")

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Graeme Rocher (one of the lead Grails guys) has put together a benchmark  
comparison between a simplistic Rails app and a Grails app.  
[http://docs.codehaus.org/display/GRAILS/Grails+vs+Rails+Benchmark](http://docs.codehaus.org/display/GRAILS/Grails+vs+Rails+Benchmark)

But there’s some weirdness in the results that people with more Mongrel  
knowledge than I can help out with. The Rails app was given a cluster of  
10  
mongrels and the Grails app was limited to a max of 10 threads under  
tomcat  
to keep everything even. What’s weird is that Rails performance  
_degraded_  
compared to when it was just run with one mongrel. Obviously there’s  
something whacked with that and we would really appreciate your insight  
to  
make this a totally balanced comparison.

There’s some weirdness on the Java side of things too for any of you  
with  
good Tomcat knowledge. For some reason Grails seemed to perform _better_  
when Tomcat was limited to 10 threads as opposed to when it ran under  
the  
default # of threads.

Feel free to respond here or drop me an e-mail privately and I’ll make  
sure  
it gets to the right people. 🙂

–

- kate = masukomi  
[http://weblog.masukomi.org/](http://weblog.masukomi.org/)

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<div class="post-metadata">

**Author:** ![kate\_rhodes](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/2bfe46/32.png) [@kate\_rhodes](https://www.ruby-forum.com/u/kate_rhodes)\
**Post date:** [March 25, 2007, 7:06pm UTC](https://www.ruby-forum.com/t/help-with-rails-vs-grails-benchmark-comparison/90051/2 "2007-03-25T19:06:49Z")

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kate rhodes wrote:

> Graeme Rocher (one of the lead Grails guys) has put together a  
> benchmark comparison between a simplistic Rails app and a Grails app.  
> [http://docs.codehaus.org/display/GRAILS/Grails+vs+Rails+Benchmark](http://docs.codehaus.org/display/GRAILS/Grails+vs+Rails+Benchmark)
> 
> What’s weird is that Rails performance _degraded_ compared to when it  
> was just run with one mongrel. Obviously there’s something whacked  
> with that and we would really appreciate your insight to make this a  
> totally balanced comparison.  
> yes… the thing is they are running rails in development mode, so every  
> class is getting reloaded every time.

I posted it already at the original blog post, so hopefully they’ll  
re-benchmark and more accurate results should be produced (taking into  
account the benchmarking is not by any means exhaustive)

regards,

javier ramirez

## –

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