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

Avi Kivity
2010-03-16T11:10:21Z

On 03/16/2010 12:50 PM, Ingo Molnar wrote:
>
>> I'm confused - initrd seems to be guest-side. I was talking about the host
>> side.
>>
> host side doesnt need much support - just some client capability in perf
> itself. I suspect vmchannels are sufficiently flexible and configuration-free
> for such purposes? (i.e. like a filesystem in essence)
>

I haven't followed vmchannel closely, but I think it is. vmchannel is
terminated in qemu on the host side, not in the host kernel. So perf
would need to connect to qemu.

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