[Rails] RubyGems runtime memory use in Rails apps...

[Stef T]

Hello Steve,
    Well, since you asked for help, can I suggest that you provide 
pertinent details ? OS used, ruby version, and also the example code 
that you used to profile would be nice ;) I must say, that rubygems 
hooks into the main process from what I can (hence the require) so I 
would -expect- it to stay resident in memory. Which reminds me, what 
memory are you profiling here ? VSZ ? RSZ ? Then again, in the day and 
age of 1GB in my desktop machine, its probably highly easy to dismiss a 
RSZ of 10MB ;) Heck, almost all of the servers at work have >4GB. Thats 
not the point, I know, but, there is no point in chasing rabbits down 
holes if you don't need to (also called the 'premature optimisation' 
problem).
   
    Details details, the devil is in the details*
    Regards
    Stef
(* this should not be taken as an endorsement of satan nor that I have 
-the- answer to your problems ;)

Steve Longdo wrote:
> This an open plea for someone with knowledge of RubyGems to explain 
> why RubyGems stays in memory (over 10MB) after a Rails application is 
> loaded.  I am unable to figure out why this would be necessary. I 
> haven't had any response from Jim or Chad from RubyGems about it so I 
> thought I would throw it open to the list to see if anyone could 
> educate me or share thier experiences with this.
>
> There is a more detailed write up on my blog ( 
> http://www.stevelongdo.com/articles/2006/08/08/rubygems-dependency-management-and-memory-use 
> <http://www.stevelongdo.com/articles/2006/08/08/rubygems-dependency-management-and-memory-use> 
> ).
>
> -- 
> Thanks,
> -Steve
> http://www.stevelongdo.com
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