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AW: Re: [Xen-devel] AW: Load increase after memory upgrade?
| To: | "konrad.wilk" <konrad.wilk@xxxxxxxxxx>, linux <linux@xxxxxxxxxxxxxx> |
|---|---|
| Subject: | AW: Re: [Xen-devel] AW: Load increase after memory upgrade? |
| From: | "Carsten Schiers" <carsten@xxxxxxxxxx> |
| Date: | Tue, 28 Jun 2011 22:34:12 +0200 |
| Cc: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Tue, 28 Jun 2011 13:36:07 -0700 |
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>is it actually the drivers that are consuming more cpu ? >2.6.32.x series still seem to show higher cpu utilazation and more wake-ups due to some console issue resulting in high events/0 in dom0. >That seems to be over in the new linux 3.0 kernels It seems that with the lower cpu utilization, main reasons to wake up according to powertop are: 1) timer (~50%) 2) saa7146(0) 3) saa7146(1) Whereas with higher CPU utilization its: 1) flexcop-pci 2) saa7146(0) 3) saa7146(1) 4) timer (<10%) If that helps. Funny: taking out the flexcop card will not change load, but taking out the saa7146 cards will lower load on the other kernel also. Carsten. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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