[CentOS] High system load but low cpu usage
Les Mikesell
lesmikesell at gmail.comThu Jun 9 17:28:45 UTC 2011
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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 at gmail.com
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