From: Paolo Bonzini <pbonzini@redhat.com>
To: Andrey Korolyov <andrey@xdel.ru>, kvm@vger.kernel.org
Subject: Re: QEMU P2P migration speed
Date: Wed, 05 Feb 2014 16:15:21 +0100 [thread overview]
Message-ID: <52F25589.50503@redhat.com> (raw)
In-Reply-To: <52F2169D.9080806@xdel.ru>
Il 05/02/2014 11:46, Andrey Korolyov ha scritto:
> On 02/05/2014 11:27 AM, Paolo Bonzini wrote:
>> Il 04/02/2014 18:06, Andrey Korolyov ha scritto:
>>> Migration time is almost independent of VM RSS(varies by ten percent at
>>> maximum), for situation when VM is active on target host, time is about
>>> 85 seconds to migrate 8G between hosts, and when it is turned off,
>>> migration time *increasing* to 120s. For curious ones, frequency
>>> management is completely inactive on both nodes, neither CStates
>>> mechanism. Interconnection is relatively fast (20+Gbit/s by IPoIB).
>>
>> What version of QEMU?
>>
>> Paolo
>
> Ancie.. ehm, stable - 1.1.2 from wheezy. Should I try 1.6/1.7?
Yeah, you can checkout the release notes on wiki.qemu.org to find out
which versions had good improvements. You can also try compiling
straight from git, there are more speedups there.
Paolo
next prev parent reply other threads:[~2014-02-05 15:15 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-04 17:06 QEMU P2P migration speed Andrey Korolyov
2014-02-05 7:27 ` Paolo Bonzini
2014-02-05 10:46 ` Andrey Korolyov
2014-02-05 15:15 ` Paolo Bonzini [this message]
2014-02-06 13:40 ` Andrey Korolyov
2014-02-07 8:14 ` Paolo Bonzini
2014-02-07 13:07 ` Andrey Korolyov
2014-02-07 15:26 ` Paolo Bonzini
2014-02-07 15:32 ` Paolo Bonzini
2014-02-07 16:10 ` Michael Tokarev
2014-02-08 11:33 ` Andrey Korolyov
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