Re: [Qemu-devel] Re: [RFT][PATCH 07/15] qemu_irq: Add IRQ handlers with delivery feedback

[Paul Brook]

> >> Then the amount
> >> of CPU cycles between timer interrupts would increase and hopefully
> >> the guest can keep up. If the guest sleeps, time base could be
> >> accelerated to catch up with wall clock and then set back to 1:1 rate.
> > 
> > Can't follow you ATM, sorry. What should be slowed down then? And how
> > precisely?
> 
> I think vm_clock and everything that depends on vm_clock, also
> rtc_clock should be tied to vm_clock in this mode, not host_clock.

The problem is more fundamental than that. There is no real correlation 
between vm_clock and the amount of code executed by the guest, especially not 
on timescales less than a second.

Paul