linux-kernel - Re: Out of socket memory

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Date:	Wed, 19 Sep 2007 18:51:11 -0600
From:	Robert Hancock <hancockr@...w.ca>
To:	Ilya Eremin <che_guevara_3@...ru>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Out of socket memory

Ilya Eremin wrote:
> Hello,
> 
> I am running a P2P related server, which has many connections to it at one time (about 100,000 at peak times). But I have been getting
> eserver invoked oom-killer: gfp_mask=0xd0, order=0, oomkilladj=0 errors followed by
> Out of socket memory
> I believe this is related to rmem, but I am not sure. Here's my current net related sysctl settings
> 
> net.core.wmem_max = 8388608
> net.core.rmem_max = 8388608
> net.core.wmem_default = 104448
> net.core.rmem_default = 104448

..

> 
> I am not sure if I should increase rmem further or not

Increasing that will likely make things worse, not better, as it allows 
more memory to be allocated for each socket. I should think you want to 
adjust those values down, not up..

-- 
Robert Hancock      Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@...pamshaw.ca
Home Page: http://www.roberthancock.com/

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