2005-05-30 15:05:10

by Christian Schmid

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Subject: vm-issues in 2.6.12-rc5

Hi.

Even in 2.6.12rc5 the vm-problem is still there. On a gigabit-webserver, when it reaches around 4000
downloaders, it slows-down immediately. Its no fs-issue or disk-issue because the lock-ups also
happen when I try to open a file on /proc. Normally it needs no time to open it but when it reaches
4000 sockets, it needs from 5-30 seconds to just open a "file". Its a dual Xeon with 8 GB Ram. Any idea?

Chris


2005-05-31 00:40:57

by Con Kolivas

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Subject: Re: vm-issues in 2.6.12-rc5

On Tue, 31 May 2005 01:01 am, Christian Schmid wrote:
> Even in 2.6.12rc5 the vm-problem is still there. On a gigabit-webserver,
> when it reaches around 4000 downloaders, it slows-down immediately. Its no
> fs-issue or disk-issue because the lock-ups also happen when I try to open
> a file on /proc. Normally it needs no time to open it but when it reaches
> 4000 sockets, it needs from 5-30 seconds to just open a "file". Its a dual
> Xeon with 8 GB Ram. Any idea?

Have you tried getting a profile output to see what it is doing during these
slowdowns?

Cheers,
Con