[Mongrel] Multiple mongrels for one app

Zed Shaw zedshaw at zedshaw.com
Tue Aug 22 18:15:00 EDT 2006

On Tue, 2006-08-22 at 11:31 -0500, Philip Hallstrom wrote:
> > This is my first post, so I'm not sure if it's been asked before, but
> > I can't find an answer anywhere.
> >
> > If I have one rails application running, one processor I'm running it
> > on, and mongrel is multi-threaded, why should I have more than one
> > mongrel running?
> >
> > Everyone seems to agree on 3-5 mongrels per rails app, but why?
> Performance... somewhere Zed has an article on how to benchmark things.. 
> something along the lines of benchmark a blank static html page.  That's 
> as fast as your server will go.  Then create a simple action that renders 
> "Hello" as text say, with one mongrel.  Benchmark that.  Keep increasing 
> the number of mongrels until you don't get any more performance 
> improvements.
> For us, it was 4.

Wow, someone listened.  Nice job Philip.

Zed A. Shaw
http://www.lingr.com/room/3yXhqKbfPy8 -- Come get help.

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