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Re: [Xen-users] CPU intensive VM starves IO intensive VMs
| To: | "Tim Wood" <twwood@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-users] CPU intensive VM starves IO intensive VMs |
| From: | "Diwaker Gupta" <diwaker.lists@xxxxxxxxx> |
| Date: | Fri, 1 Sep 2006 16:58:02 -0700 |
| Cc: | Xen Users <xen-users@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Fri, 01 Sep 2006 16:58:52 -0700 |
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In all of these examples I am using the sedf scheduler with equal CPU weights for dom0 and all VMs. Desite this, in the 2 VM scenario, the scheduler ends up giving 99% of the cpu to the VM running the hog app, practically starving the IO intensive VM. Are you running in work conserving mode or non-work conserving mode? (the extra flag is set to 0 for the latter). I have done similar experiments with good results in non work conserving mode. -- Web/Blog/Gallery: http://floatingsun.net/blog _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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