From: XliN <saikov.vb@gmail.com>
To: Marcus <shadowsor@gmail.com>
Cc: kvm@vger.kernel.org
Subject: Re: kvm (qemu) speed virtio
Date: Wed, 05 Feb 2014 01:31:03 +0400 [thread overview]
Message-ID: <52F15C17.3060700@gmail.com> (raw)
In-Reply-To: <CALFpzo6FA0OZaVot7PckXmN97vMnpODQE=Hi9knNF3BPJ=ndsw@mail.gmail.com>
04.02.2014 20:32, Marcus пишет:
> We may have seen this as well. Initial speed tests were actually
> pretty good, but after running a few IO test it would actually cause
> the physical disks that were dedicated to the windows vm host side to
> be stuck at 100% util with no throughput for 30 seconds at a time
> according to iostat. We were using noop scheduler on the disks. I
> think it's something with your host, as we stopped seeing it when we
> moved from stock CentOS 6.5 kernel to vanilla 3.10 kernel. Sorry I
> don't have more info on the cause, we saw the issue for a few days but
> were already upgrading due to the need for vxlan, so we didn't bother
> investigating.
>
> On Tue, Feb 4, 2014 at 7:22 AM, XliN <saikov.vb@gmail.com> wrote:
>> Good day. Very little speed drives Virtio. Drivers are the latest guest on
>> the system "Windows server 2008". Host system centos 6.5.
>>
>> All that can be tried, but failed to increase the speed. And there I have a
>> database running.
>>
>> Screenshots test speed drives
>>
>> http://itmages.ru/image/view/1471772/feec35c3
>> <http://itmages.ru/image/view/1471772/feec35c3>
>> http://itmages.ru/image/view/1471774/2b0baeae
>> <http://itmages.ru/image/view/1471774/2b0baeae>
>> http://itmages.ru/image/view/1471785/9fffb8f5
>> <http://itmages.ru/image/view/1471785/9fffb8f5>
>>
>> Thanks in advance. Apply nowhere else.
>> --
>> To unsubscribe from this list: send the line "unsubscribe kvm" in
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Offer a kernel upgrade to 3.10 on centos 6.5? Whether it will survive
the host system? =)
prev parent reply other threads:[~2014-02-04 21:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-04 14:22 kvm (qemu) speed virtio XliN
2014-02-04 16:32 ` Marcus
2014-02-04 21:31 ` XliN [this message]
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