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Re: [Qemu-devel] [question] virtio-blk performance degradationhappened w
From: |
Andrey Korolyov |
Subject: |
Re: [Qemu-devel] [question] virtio-blk performance degradationhappened with virito-serial |
Date: |
Tue, 2 Sep 2014 22:27:36 +0400 |
On Tue, Sep 2, 2014 at 10:11 PM, Amit Shah <address@hidden> 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.
- Re: [Qemu-devel] [question] virtio-blk performance degradationhappenedwith virito-serial, (continued)
- Re: [Qemu-devel] [question] virtio-blk performance degradationhappenedwith virito-serial, Zhang Haoyu, 2014/09/04
- Re: [Qemu-devel] [question] virtio-blk performance degradationhappenedwith virito-serial, Zhang Haoyu, 2014/09/07
- Re: [Qemu-devel] [question] virtio-blk performance degradationhappenedwith virito-serial, Amit Shah, 2014/09/11
- Re: [Qemu-devel] [question] virtio-blk performance degradation happened with virito-serial, Zhang Haoyu, 2014/09/11
- Re: [Qemu-devel] [question] virtio-blk performance degradation happened with virito-serial, Stefan Hajnoczi, 2014/09/12
- Re: [Qemu-devel] [question] virtio-blk performance degradation happened with virito-serial, Max Reitz, 2014/09/13
- Re: [Qemu-devel] [question] virtio-blk performance degradation happened with virito-serial, Zhang Haoyu, 2014/09/16
Re: [Qemu-devel] [question] virtio-blk performance degradationhappened with virito-serial, Amit Shah, 2014/09/02
Re: [Qemu-devel] [question] virtio-blk performancedegradationhappened with virito-serial, Zhang Haoyu, 2014/09/03
Re: [Qemu-devel] [question] virtio-blk performance degradationhappened with virito-serial, Fam Zheng, 2014/09/19
Re: [Qemu-devel] [question] virtio-blk performance degradationhappened with virito-serial, Paolo Bonzini, 2014/09/19
Re: [Qemu-devel] [question] virtio-blk performancedegradationhappened with virito-serial, Zhang Haoyu, 2014/09/22
Re: [Qemu-devel] [question] virtio-blk performancedegradationhappened with virito-serial, Fam Zheng, 2014/09/22