Re: to many sockets ?

[Eric Dumazet <dada1@cosmosbay.com>]

On Thursday 05 October 2006 09:14, Markus Wenke wrote:

> I tried the same scenario with SO_SNDBUF = SO_RCVBUF = 8k, so that the
> max memory is ca. 2G
> and the oom-killer kills my application at the same time (at 140000
> connections).
>
> I can not see in the messages that the system is out of memory,
> there is also no swap space used
>
> You can download my /var/log/messages at
> http://hemaho.mine.nu/~biber/messages
>
> May you can give me a hint which line/value in the log shows me,
> that the system is out of memory?

I think you lack of LOWMEM, since you use a 32bits kernel.

Could you post here the result of these commands when your system is using 
more than 100.000 connections (and before the OOM :) )

cat /proc/meminfo
cat /proc/slabinfo
cat /proc/net/sockstat
cat /proc/net/stat/rt_cache
cat /proc/buddyinfo
grep . /proc/sys/net/ipv4/*
grep . /proc/sys/net/ipv4/route/*

Eric