Marcelo Tosatti wrote: [snip]
Would be useful to collect sar (sar -B -b -u) output every one second in both host/guest. You already mentioned load was low, but this should give more details.
Here we go: http://www.corpit.ru/mjt/hrtimer-interrupt-too-slow/ Two incindents - cases when hrtimer: interrupt is too slow were reported in the guest (with Marcelo's patch so that min_delta is increased to 50% only), happened at 11:44:48 and 21:46:56 (as shown in guest-dmesg file). For both, there's `sar -BWbd' output for a 2-minute interval (starting one minute before the delay and ending one minute after) from both host and guest.
Was there swapping going on?
Not as far as I can see, and sar output agrees. /mjt -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html