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
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