Messages in this thread | | | Date | Wed, 17 Mar 2010 10:20:27 +0200 | From | Avi Kivity <> | Subject | Re: [PATCH] Enhance perf to collect KVM guest os statistics from host side |
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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. That doesn't mean it isn't useful, just that it doesn't satisfy all needs by itself.
-- Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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