[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] AW: Load increase after memory upgrade?
Hello Konrad, Monday, June 27, 2011, 3:46:43 PM, you wrote: > On Mon, Jun 27, 2011 at 01:29:24PM +0200, Carsten Schiers wrote: >> Hi, >> >> the higher load is neither bound to memory increase nor Xen version, it's >> the kernel. >> Changed at the same time from a Xenified 2.6.34.7 kernel to pvops jeremy's >> git >> stable-2.6.32.x >> >> Konrad, are you interested? You can see from attached graphic the much higer >> load >> mid 21 to 24. riker (yellow) is using the cards constantly for scanning >> transponders, >> two seem to make use of DMA for that reason... > Um, so 2.6.34 to 2.6.32 causes this spike in usage? What is the SWIOTLB > (PCI-DMA32) > usage between these two kernels and are the drivers (budget_...) the same > version? 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 -- Sander _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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