From mboxrd@z Thu Jan  1 00:00:00 1970
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: AW: Load increase after memory upgrade?
Date: Mon, 27 Jun 2011 09:46:43 -0400
Message-ID: <20110627134643.GD6978@dumpdata.com>
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To: Carsten Schiers <carsten@schiers.de>
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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?