Re: [PATCH] Enhance perf to collect KVM guest os statistics from host side

Ingo Molnar
2010-03-17T08:16:41Z

* 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.

Ingo