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

[Ren, Qiaowei]

> -----Original Message-----
> From: Daniel P. Berrange [mailto:berrange at redhat.com]
> Sent: Tuesday, November 17, 2015 6:47 PM
> To: Ren, Qiaowei
> Cc: libvir-list at redhat.com; Jiri Denemark
> Subject: Re: [PATCH 0/8] Add perf and Intel CMT feature support
> 
> 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.
> >
> > TODO:
> > 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.
> 

Daniel, thanks for your feedback. ^-^

Thanks,
Qiaowei