Messages in this thread | | | Date | Mon, 12 Dec 2011 18:20:00 +0100 | From | Ingo Molnar <> | Subject | Re: [patch 0/3] kvm tool: Serial emulation overhaul |
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* Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> > [*] Also, those 10K cycles include some significant Qemu > > overhead - a couple of thousand cycles - that should be much > > lower in the tools/kvm case. > > Are all the traps going into qemu - is KVM still that braindead ?
I don't know what exactly Marcelo has measured - it seems a PIO trap handled by the VM monitor process - i.e. Qemu in that case.
Thanks,
Ingo
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