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Re: [Xen-devel] Performance difference between Xen versions
On 5/2/2011 11:12 AM, Konrad Rzeszutek Wilk wrote:
On Mon, May 02, 2011 at 10:52:45AM -0700, John Weekes wrote:Or I am I just missing something entirely here?Oh? I think git commit a3ca5a20ec9d5c4917271021d49768961e7a8421 Author: Yu Ke<ke.yu@xxxxxxxxx> Date: Thu Apr 28 09:50:55 2011 -0400 xen/acpi: add xen acpi processor driver Xen hypervisor need parsed acpi processor info for CPU Cx/Px power management, so this patch introduces xen acpi processor driver to parse the acpi info, and notify the hypervisor upon receiving the info. This patch has two components: - driver/acpi/processor_xen.c: implement the xen acpi processor driver - drivers/xen/acpi_processor.c: provide the interface to notify Xen hypervisor adds it in the 2.6.32 tree?
Thanks, Konrad.It looks like the commit in question is actually this one, from March 2010: http://git.kernel.org/?p=linux/kernel/git/jeremy/xen.git;a=commit;h=7529008534a694c5784dfb11aa46184e33adc227. My search didn't find it because the files don't use the string "px_pminfo" anywhere.
The important thing that I missed on my end was not having the ACPI processor driver selected (for some reason). I had cpufreq and ACPI enabled, but I needed that, as well.
-John _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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