Messages in this thread | | | Date | Wed, 17 Mar 2010 09:59:00 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH] Enhance perf to collect KVM guest os statistics from host side |
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* Avi Kivity <avi@redhat.com> wrote:
> On 03/17/2010 10:16 AM, Ingo Molnar wrote: > >* Avi Kivity<avi@redhat.com> wrote: > > > >> Monitoring guests from the host is useful for kvm developers, but less so > >> for users. > > > > Guest space profiling is easy, and 'perf kvm' is not about that. (plain > > 'perf' will work if a proper paravirt channel is opened to the host) > > > > I think you might have misunderstood the purpose and role of the 'perf > > kvm' patch here? 'perf kvm' is aimed at KVM developers: it is them who > > improve KVM code, not guest kernel users. > > Of course I understood it. My point was that 'perf kvm' serves a tiny > minority of users. [...]
I hope you wont be disappointed to learn that 100% of Linux, all 13+ million lines of it, was and is being developed by a tiny, tiny, tiny minority of users ;-)
> [...] That doesn't mean it isn't useful, just that it doesn't satisfy all > needs by itself.
Of course - and it doesnt bring world peace either. One step at a time.
Thanks,
Ingo
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