[libvirt] [PATCH 0/8] Add perf and Intel CMT feature support

Daniel P. Berrange berrange at redhat.com
Tue Nov 17 10:47:06 UTC 2015

On Tue, Nov 17, 2015 at 04:00:40PM +0800, Qiaowei Ren wrote:
> The series mainly adds Intel CMT feature support into libvirt. CMT is
> new introduced PQos (Platform Qos) feature to monitor the usage of
> cache by applications running on the platform.
> Currently CMT patches has been merged into Linux kernel mainline.
> The CMT implementation in Linux kernel is based on perf mechanism and
> there is no support for perf in libvirt, and so this series firstly
> add perf support into libvirt, including two public API and a set of
> util interfaces. And based on these APIs and interfaces, thie series
> implements CMT perf event support.
> 1. This series relys on keeping an open file descriptor for the guest.
> We should add one patch to call sys_perf_event_open again iff libvirtd
> is restarted.

I've not done a detailed patch review, but overall I think this design
is pretty good now, so thanks for taking time to re-write this.

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