On 8/31/07, Alexey Verkhovsky <[EMAIL PROTECTED]> wrote:
> On 8/30/07, Charles Oliver Nutter <[EMAIL PROTECTED]> wrote:
> > > JETTY (ObjectSpace disabled)
> > > logging enabled: 29 req/sec
> > > logging disabled: 45 req/sec (!)
>
> > It's likely that similar
> > IO bottlenecks exist for sockets, which would certainly explain to some
> > extent overall poor performance.
>
> Jetty scenario with logging turned off, obviously, involves
> practically no I/O at JRuby level at all. I've tried to profile it,
> and saw no obvious bottlenecks in core classes. Most of the CPU time
> seems to consumed within the JRuby runtime stuff (ThreadContext,
> RubyObject and such).
>
> By the way, Petstore is a very simple Rails application. I'm going to
> do some comparisons with a couple of much bigger apps TW is building,
> we'll see how that stacks up. I won't be able to publish it, like
> Petstore, but I'll try to at least write up the general observations.

Alexy, how many times are you hitting these urls again?  You said 1000
at the top of this thread.  Can you try hitting like 100,000 to get an
idea if hotspot starts warming more.    Perhaps a start before you
leave work sort of test?

-Tom

-- 
Blog: http://www.bloglines.com/blog/ThomasEEnebo
Email: [EMAIL PROTECTED] , [EMAIL PROTECTED]

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