High CPU system usage

[Ugo Bellavance]

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Joshua Hirsh wrote:
>>Can't tell right now, i'll check next time such a burst 
>>happens.  We are running with 10 child processes on a HT 2.8 P4 with 2 GB RAM.
> 
> 
>  How much mail are you processing? You should be able to handle quite a bit of messages with a server like that. Is your IDE drive connected via SATA?
> 

Between 15 000 and 50 000 /day.

>  A quick test might be to test the read/write performance of the drive during off-hours and during your peak hours to see how much of a deviation occurs between the two.
> 
> 
> 
>  Although it's probably not the answer you want, you should see a performance boost by moving to a 2.6 based kernel (I'd personally recommend either CentOS or Tao for the task). I definitely noticed an overall system performance boost after migrating my servers to one of the newer RHEL4 rebuilds.
> 
> 
I already thought about that.  Anyone seen a significant improvement in
performance on a switch to 2.6?

Joshua, can you share your stats about CPU % system usage with a 2.6 kernel?

Thanks,

>  Cheers,
> -Joshua
> 

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