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From: | Amit Shah |
Subject: | Re: [Qemu-devel] [question] virtio-blk performance degradationhappened with virito-serial |
Date: | Tue, 2 Sep 2014 23:41:13 +0530 |
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
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