Re: High system load but low cpu usage

[Les Mikesell <lesmikesell@xxxxxxxxx>]

On 6/9/2011 12:02 PM, Emmanuel Noobadmin wrote:
>
>> disks are often swamped by "two things happening at once"...
>>     backups
>>     migrating a VM
>>     database upgrades
>>     .rrd average updates
>
> Unfortunately, the VMs are public facing and the offending one has got
> a relatively popular Wordpress blog as well as relatively high email
> traffic. So it's likely the result of those two things happening at
> once.

Don't forget the VM's don't isolate contention for the physical disk 
heads on the host device(s).  They just sort of hide your ability to see 
where that time goes.

-- 
   Les Mikesell
    lesmikesell@xxxxxxxxx
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