Rainbows! Rack HTTP server user/dev discussion
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From: Alexandre Riveira <alexandre-VwDbj2YsoUp0ZRtCdD4y8VAUjnlXr6A1@public.gmane.org>
To: "Rainbows! list" <rainbows-talk-GrnCvJ7WPxnNLxjTenLetw@public.gmane.org>
Subject: Re: memory usage
Date: Sun, 27 Oct 2013 11:35:40 +0000
Message-ID: <526CFA8C.7000300@objectdata.com.br> (raw)
In-Reply-To: <20131022160930.GA3020-yBiyF41qdooeIZ0/mPfg9Q@public.gmane.org>

Hello Eric,

I discovered that when you restart the server (linux 2.3.50, glibc 2.15) 
memory stopped growing indiscriminately.

2 questions:

1) The POOL_SIZE XEpollThreadPool series of the number of connections 
accepted epoll so'd have one for each thread
2) I saw the gem 'mall' and she seems to adjust as you indicted by glibc 
environment variables are correct? If yes in config / initializers added 
a file.rb with the following:
Mall.opt (Mall :: ARENA_MAX, 1)
Mall.opt (Mall :: ARENA_TEST, 1)


Tanks,

Alexandre Riveira

On 22-10-2013 16:09, Eric Wong wrote:
> Alexandre Riveira <alexandre-VwDbj2YsoUp0ZRtCdD4y8VAUjnlXr6A1@public.gmane.org> wrote:
>> I usually use XEpollThreadPool however persebi a large memory usage
>> for sites that have a lot of content and access reaching over 1 GB.
>> Changed to ThreadPool and memory fell not from 4x 256MB. However
>> XEpollThreadPool is faster than ThreadPool. Accepted suggestions for
>> configuration. I tested also with CoolioThreadPool speed was good
>> but the memory consumption and large too.
> Wait, ThreadPool uses significantly less than XEpollThreadPool?
>
> Since this is likely glibc/eglibc, try setting MALLOC_ARENA_MAX=1 and
> MALLOC_ARENA_TEST=1 in the env before starting Rainbows!  AFAIK, these
> are mainly documented by Red Hat, but in all recent-ish versions of
> glibc/eglibc support it.
>
> Then increase the values if you see performance gains (unlikely unless
> your app releases the GVL a lot or don't have one (rbx)).
> _______________________________________________
> Rainbows! mailing list - rainbows-talk-GrnCvJ7WPxnNLxjTenLetw@public.gmane.org
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> Do not quote signatures (like this one) or top post when replying
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  parent reply index

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-22  8:28 Alexandre Riveira
     [not found] ` <52663744.6040600-VwDbj2YsoUp0ZRtCdD4y8VAUjnlXr6A1@public.gmane.org>
2013-10-22 16:09   ` Eric Wong
     [not found]     ` <20131022160930.GA3020-yBiyF41qdooeIZ0/mPfg9Q@public.gmane.org>
2013-10-22 18:08       ` Alexandre Riveira
2013-10-27 11:35       ` Alexandre Riveira [this message]
     [not found]         ` <526CFA8C.7000300-VwDbj2YsoUp0ZRtCdD4y8VAUjnlXr6A1@public.gmane.org>
2013-10-28  0:37           ` Eric Wong
     [not found]             ` <20131028003755.GA6569-yBiyF41qdooeIZ0/mPfg9Q@public.gmane.org>
2013-10-28 18:40               ` Alexandre Riveira

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