Re: QEMU PIC indirection patch for in-kernel APIC work

Avi Kivity
2007-04-04T16:54:12Z

Anthony Liguori wrote:
>>
>>> BTW, I see CPU utilization of qemu is almost always 99% in the top
>>> command when I run kernel build in an x86-64 Linux guest.
>>>
>>
>
> qemu would be 99% even if all the time is being spent in the guest
> context.
>
> If the user time is high, an oprofile run would be pretty useful.
> I've found that the VGA drawing routines can be pretty expensive.
>

Ah, Jun's used to seeing Xen's qemu-dm idling when the guest is not
issuing I/O. With kvm, guest cpu time is accounted as system time to
the qemu process. Thanks for clearing that up, I didn't understand the
question till now.

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error compiling committee.c: too many arguments to function