Re: [exim] Finding system bottlenecks to speed up Exim

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Author: Marc Perkel
Date:  
To: exim-users@exim.org >> \"'exim-users@exim.org'\"
Subject: Re: [exim] Finding system bottlenecks to speed up Exim


Martin A. Brooks wrote:
> Marc Perkel wrote:
>> The server is a dual core AMD running at 3ghz and has 8 gigs of ram.
>> Running 64bit Fedora 8.
>>
>
> "fedora" and "server" are mutually exclusive terms.

Works fine for me.
>
>> I'm running the old xosview program to watch various loads.
>
> You have X installed on a server?

Yes - but I run in from remote on my home workstation. I install X
because if I'm at the colo at 2:00am trying to fix something sometimes I
need to search Google to find out how to fix somethiung. But I don't run
X on the server normally.
>
>> Disk IO is not real heavy. It has a reasonably fast SATA II drive
>> that's not very full. Writes about 3 gigs of log file entries a day.
>>
>
> A server with _one_ disk?

I have 2 drives in this server.
>
>> Or - what tools or tricks can I use to see where the bottleneck is
>
> The usual *stat tools will tell you for sure, but I'm betting that
> you're IO bound.

What stat tools specifically? Yes, I think I'm IO bound. I think it's
the number of connections and the TCP stack that's slowing me down.
>