Re: [squid-users] Squid very slow after 3 weeks

just an inquiry from someone's who's been following
this thread... are u saying that the ipchains
emulation on the 2.4 kernel is no good, but that
runing ipchains on the native 2.2 kernel should be no
problem...?...

if so, would it be worth considering that Sina tries a
2.2 kernel... just a thought...

AKNIT

 --- Henrik Nordstrom <hno@marasystems.com> wrote: >
On Saturday 06 July 2002 16.56, Sina Tolouei wrote:
>
> > AS you guessed ,I use Ipcahins for transparent
> proxy , the script
> > i wrote is as follows
>
> > does using iptables affect the speed?
>
> The thing is that the Linux-2.4 ipchains emulation
> is not very well
> tested, and many revisions of the Linux-2.4 kernel
> has serious bugs
> in ipchains. One quite notable is that the REDIRECT
> target leaks
> memory causing your system to gradually run out of
> memory and degrade
> in performance..
>
> iptables has been working really well for a long
> time, and is what
> people actively use on the Linux-2.4 kernel (and is
> why it is also
> considerably more stable and bug free than the
> ipchains emulation).
>
> > and i have to mention that the Runtime info was
> in the time of
> > worst cache speed!
>
> I did not see any highly obvious signs of poor
> performance in the
> runtime info at a first glance.
>
> Try the following procedure to try to isolate where
> the problem is:
>
> 1. Restart Squid. If this helps, and it still
> performs good after a
> few days then there probably was some kind of
> temporary hickup.
>
> 2. If it did not help, reboot the server. If
> rebooting helps then
> seriously consider swiching to use iptables instead
> of ipchains
> emulation..
>
> 3. If rebooting did not help then I would guess the
> problem is
> networking related. Check your cabling etc.. netstat
> -i is also your
> friend... (there should be no or very few errors in
> the network
> traffic)
>
> Regards
> Henrik
>

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Received on Mon Jul 08 2002 - 01:12:57 MDT