On Sat, Apr 19, 2008 at 01:22:28PM -0300, Glauber Costa wrote: > > I've been able to reproduce the problem. Symptoms are that when using > > NOHZ vcpu0 LAPIC timer is ticking far less than the others (apparently > > vcpu0 > > is the only one ticking "correctly"): > > > > > > nohz=on with kvmclock > > [EMAIL PROTECTED] ~]# cat /proc/timer_stats | grep apic > > 13214, 8590 qemu-system-x86 apic_mmio_write (apic_timer_fn) > > 13214, 8589 qemu-system-x86 apic_mmio_write (apic_timer_fn) > > 13211, 8588 qemu-system-x86 apic_mmio_write (apic_timer_fn) > > 389, 8587 qemu-system-x86 apic_mmio_write (apic_timer_fn) > > > > nohz=off > > 3253, 8672 qemu-system-x86 apic_mmio_write (apic_timer_fn) > > 2876, 8673 qemu-system-x86 apic_mmio_write (apic_timer_fn) > > 2543, 8674 qemu-system-x86 apic_mmio_write (apic_timer_fn) > > 2179, 8675 qemu-system-x86 apic_mmio_write (apic_timer_fn) > > > > no-kvmclock > > 1017, 8808 qemu-system-x86 apic_mmio_write (apic_timer_fn) > > 1577, 8809 qemu-system-x86 apic_mmio_write (apic_timer_fn) > > 1708, 8807 qemu-system-x86 apic_mmio_write (apic_timer_fn) > > 1812, 8806 qemu-system-x86 apic_mmio_write (apic_timer_fn) > > > > > > Glauber will start looking at this next week. > > > > > > > > >From what me and marcelo discussed, I think there's a possibility that > it has marginally something to do with precision of clock calculation. > Gerd's patches address that issues. Can somebody test this with those > patches (both guest and host), while I'm off ?
Haven't seen Gerd's guest patches ? ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
