From: Eric Wong <normalperson-rMlxZR9MS24@public.gmane.org>
To: Rainbows! list <rainbows-talk-GrnCvJ7WPxnNLxjTenLetw@public.gmane.org>
Subject: Re: c10k paradigm
Date: Tue, 16 Apr 2013 17:24:17 +0000 [thread overview]
Message-ID: <20130416172417.GA12658@dcvr.yhbt.net> (raw)
In-Reply-To: <516D338C.9060408-VwDbj2YsoUp0ZRtCdD4y8VAUjnlXr6A1@public.gmane.org>
Alexandre Riveira <alexandre-VwDbj2YsoUp0ZRtCdD4y8VAUjnlXr6A1@public.gmane.org> wrote:
> Em 15-04-2013 19:34, Eric Wong escreveu:
> >Yes, you would use EventMachine.threadpool_size = 50, though, with
> >Rainbows::EventMachine::TryDefer
> >
> >http://rainbows.rubyforge.org/Rainbows/EventMachine/TryDefer.html
> >
> >I forgot about this, not sure if it's used much, but "app.deferred?" is
> >an ad-hoc extension which Thin also supports
>
> * EventMachine (less memory and cpu usage)
> I did a test using a core with ab-n 3000-c 1000
> http://127.0.0.1:3000/manager and rainbows with 3 workers,
> EventMachine then 25% cpu free while XEpollThreadPool left only
> 5% free.
With Matz Ruby, XEpollThreadPool is only a win if much of your
code/extensions releases the GVL (or if you don't feel like porting
your code to take advantage of EM).
> *EventMachine.threadpool_size = 50
> I found this code and run perfectly. But he has a kind of lock
> slowness as if using XEpollThreadPool but memory consumption was
> lower. Wonder you can put some of the rails Controllers work
> by EventMachine without using threads while others controlles
> using threads. Explain the need.
"lock slowness" - which version of Ruby is this?
Did you modify your app to use app.deferred? + TryDefer as I pointed
you to in the other message?
> Could it be that the controllers of the rails would run without
> party pool threads only with EventMachine (C10K) while others
> would use the controller with EventMachine thread pool (erp)?
That should allow some rails controllers to use threads
(app.deferred? => true) while others do not use threads
(app.deferred? => false). Keep in mind this is not a very common
configuration, so not many people have experience with it in
production.
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next prev parent reply other threads:[~2013-04-16 17:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-15 11:45 c10k paradigm Alexandre Riveira
[not found] ` <516BE872.5060006-VwDbj2YsoUp0ZRtCdD4y8VAUjnlXr6A1@public.gmane.org>
2013-04-15 18:30 ` Eric Wong
[not found] ` <516C2A48.3070808@objectdata.com.br>
[not found] ` <516C2A48.3070808-VwDbj2YsoUp0ZRtCdD4y8VAUjnlXr6A1@public.gmane.org>
2013-04-15 19:34 ` Eric Wong
[not found] ` <20130415193403.GA742-yBiyF41qdooeIZ0/mPfg9Q@public.gmane.org>
2013-04-16 10:59 ` Alexandre Riveira
2013-04-16 11:18 ` Alexandre Riveira
[not found] ` <516D338C.9060408-VwDbj2YsoUp0ZRtCdD4y8VAUjnlXr6A1@public.gmane.org>
2013-04-16 17:24 ` Eric Wong [this message]
[not found] ` <20130416172417.GA12658-yBiyF41qdooeIZ0/mPfg9Q@public.gmane.org>
2013-04-16 15:11 ` Alexandre Riveira
[not found] ` <516D6A0C.50406-VwDbj2YsoUp0ZRtCdD4y8VAUjnlXr6A1@public.gmane.org>
2013-04-16 18:35 ` Eric Wong
[not found] ` <20130416183500.GA10540-yBiyF41qdooeIZ0/mPfg9Q@public.gmane.org>
2013-04-16 17:19 ` Alexandre Riveira
[not found] ` <516D882B.4070402-VwDbj2YsoUp0ZRtCdD4y8VAUjnlXr6A1@public.gmane.org>
2013-04-16 20:48 ` Eric Wong
[not found] ` <20130416204813.GA15083-yBiyF41qdooeIZ0/mPfg9Q@public.gmane.org>
2013-04-16 20:27 ` c10k paradigm [SOLVED] Alexandre Riveira
2013-04-16 18:19 ` c10k paradigm Mark J. Titorenko
[not found] ` <37F3CDA5-C42E-4B91-A74F-E748B956D6BF-Tt5uHDgV0oUB085IDyDbTA@public.gmane.org>
2013-04-16 15:45 ` Alexandre Riveira
[not found] ` <516D7237.6000700-VwDbj2YsoUp0ZRtCdD4y8VAUjnlXr6A1@public.gmane.org>
2013-04-16 19:00 ` Mark J. Titorenko
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