linux-kernel - Re: ZONE_NORMAL memory exhausted by 4000 TCP sockets

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Message-ID: <f55850a70611060103o1415d6f2x81d6c724320a4c04@mail.gmail.com>
Date:	Mon, 6 Nov 2006 17:03:15 +0800
From:	"Zhao Xiaoming" <xiaoming.nj@...il.com>
To:	"Eric Dumazet" <dada1@...mosbay.com>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: ZONE_NORMAL memory exhausted by 4000 TCP sockets

2006/11/6, Eric Dumazet <dada1@...mosbay.com>:
>
> Slab:           293952 kB
> So 292 MB used by slab for 2000 sessions.
>
> Expect 600 MB used by slab for 4000 sessions.
>
> So your precious LOWMEM is not gone at all. It *IS* used by SLAB.
>
> You forgot to send
> cat /proc/slabinfo
>
sorry I didn't make myself clear enough. 2000 sessions means 4000
sockets, 2000 for the server, 2000 for the client.
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