On Tue, Sep 2, 2014 at 10:11 PM, Amit Shah <amit.s...@redhat.com> wrote: > On (Tue) 02 Sep 2014 [22:05:45], Andrey Korolyov wrote: > >> Can confirm serious degradation comparing to the 1.1 with regular >> serial output - I am able to hang VM forever after some tens of >> seconds after continuously printing dmest to the ttyS0. VM just ate >> all available CPU quota during test and hanged over some tens of >> seconds, not even responding to regular pings and progressively >> raising CPU consumption up to the limit. > > Entirely different to what's being discussed here. You're observing > slowdown with ttyS0 in the guest -- the isa-serial device. This > thread is discussing virtio-blk and virtio-serial. > > Amit
Sorry for thread hijacking, the problem definitely not related to the interrupt rework, will start a new thread.
