2016-08-12 23:58 GMT+08:00 Rik van Riel <r...@redhat.com>: [...] > Wanpeng, does the patch below work for you?
It will break steal time for full dynticks guest, and there is a calltrace of thread_group_cputime_adjusted call stack, RIP is cputime_adjust+0xff/0x130. > > Everybody else, does this patch look acceptable? > > ---8<--- > Subject: time,virt: do not limit steal_account_process_time > > When a guest is interrupted for a longer amount of time, missed clock > ticks are not redelivered later. Because of that, we should not limit Interesting, so do we need to add a feature like lapic timer interrrupt coalescing in kvm? There is a RTC interrupt coalescing in qemu to handle the scenario you mentioned for windows guest, if we need a similar feature for linux guest? Paolo, Radim? I can try it if you think it's valuable. :) Regards, Wanpeng Li
