[linux-lvm] Re: Daemon or Thread with 5 minute interval

[Howard Rifkin]

We do have the right kernel support for our didsks. But, you do not need 
a lot of CPU activity to generate noise. Just enough to disrupt the 
cashe. Does kupdated run every 5 minutes? If so it could still be the 
culprit.

Thanks

Howard


Bill Mair wrote:
> Howard Rifkin wrote:
> 
>>  So, my question is does anyone know of a
>> kernel thread or daemon in the 2.4 kernel that wakes up every 5 minutes?
> 
> 
> [kupdated] can cause massive CPU load if your kernel does not have the 
> IDE chipset support for your system. I think it flushed any data in the HD
> buffers to disk and if the chipset support isn't there, then the main 
> CPU has
> to do this using PIO.
> 
> -- 
> Bill
> 
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