[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [kvm-devel] [Qemu-devel] [PATCH] [RFC] Fix time drift of rtc clock +
Re: [kvm-devel] [Qemu-devel] [PATCH] [RFC] Fix time drift of rtc clock + general support
Mon, 24 Mar 2008 09:15:25 +0200
Thunderbird 184.108.40.206 (X11/20080226)
Paul Brook wrote:
a new timer will be fired to try inject it again soon (==0.1msec)
If the guest is missing interrupts, the chances of a 0.1ms interval working
are not great. Most likely It's either going trigger immediately, or be
delayed significantly and you're going to end up even further behind.
If 0.1 ms is within qemu's timeslice, then qemu should get the wakeup on
time (assuming a host with high resolution timers).
If triggering immediately is OK then why not do that all the time?
Triggering immediately doesn't help, the guest likely has interrupts
blocked processing the same interrupt.
If triggering immediately is not acceptable then you're still going to loose
You're still accounting for them, so if the load decreases eventually
it's going to catch up.
Do not meddle in the internals of kernels, for they are subtle and quick to