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DateTue, 7 Nov 2006 14:08:31 +0800
From"Zhao Xiaoming" <>
SubjectRe: ZONE_NORMAL memory exhausted by 4000 TCP sockets
On 11/7/06, Eric Dumazet <dada1@cosmosbay.com> wrote:
> Zhao Xiaoming a écrit :
> > On 11/6/06, Eric Dumazet <dada1@cosmosbay.com> wrote:
> >> In fact, your kernel has CONFIG_4KSTACKS, kernel thread stacks use 4K
> >> instead
> >> of 8K.
> >>
> >> If you want to increase LOWMEM, (and keep 32bits kernel), you can chose a
> >> 2G/2G user/kernel split, instead of the 3G/1G default split.
> >> (see config : CONFIG_VMSPLIT_2G)
> >>
> >> Eric
>
> > Thank you for your advice. I know increase LOMEM could be help, but
> > now my concern is why I lose my 500M bytes memory after excluding all
> > known memory cost.
>
> Unfortunatly you dont provide very much details.
> AFAIK you didnt even gave whcih version of linux you run, which programs you
> run...
> You keep answering where you 'lost' your mem, it's quite buging.
> Maybe some Oracles on this list will see the light for you, before exchanging
> 100 mails with you ?
>
>
I think I aready gave the kernel version and introduced my application
in the first post. What are the further details you want? The reason I
keep asking for the 'lost mem' is that I want to focus on the problem,
not the workarrounds that may lead to further problems if I keep
increasing the concurrent scale.
Anyway, since the problem is already solved (see my last post), I'd
like to thank you for the help.

Xiaoming.
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