From: Paolo Bonzini <pbonzini@redhat.com>
To: Amit Shah <amit.shah@redhat.com>
Cc: Chris Friesen <chris.friesen@windriver.com>,
qemu-devel@nongnu.org, armbru@redhat.com
Subject: Re: [Qemu-devel] virtio-serial-pci very expensive during live migration
Date: Thu, 08 May 2014 15:36:13 +0200 [thread overview]
Message-ID: <536B884D.6080504@redhat.com> (raw)
In-Reply-To: <20140508133052.GA25602@grmbl.mre>
Il 08/05/2014 15:30, Amit Shah ha scritto:
> On (Thu) 08 May 2014 [15:14:26], Paolo Bonzini wrote:
>> Il 08/05/2014 15:02, Amit Shah ha scritto:
>>>>> I tried the patch below. Unfortunately it seems to cause qemu to crash.
>>> This doesn't remove the memory_region_transaction_begin() and
>>> _commit() from memory_region_add_eventfd(), which will still be
>>> called.
>>
>> That's correct, transactions can be nested.
>
> But each _commit() will add to the delay?
No, only the outermost one.
Paolo
next prev parent reply other threads:[~2014-05-08 13:36 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-06 20:01 [Qemu-devel] virtio-serial-pci very expensive during live migration Chris Friesen
2014-05-07 5:58 ` Markus Armbruster
2014-05-07 6:39 ` Paolo Bonzini
2014-05-07 22:25 ` Chris Friesen
2014-05-08 13:02 ` Amit Shah
2014-05-08 13:14 ` Paolo Bonzini
2014-05-08 13:30 ` Amit Shah
2014-05-08 13:36 ` Paolo Bonzini [this message]
2014-05-08 13:47 ` Amit Shah
2014-05-08 15:40 ` Chris Friesen
2014-05-09 0:53 ` Chris Friesen
2014-05-09 8:19 ` Paolo Bonzini
2014-06-19 15:19 ` Chris Friesen
2014-06-19 15:31 ` Paolo Bonzini
2014-05-08 14:31 ` Chris Friesen
2014-05-08 14:34 ` Paolo Bonzini
2014-05-08 15:57 ` Chris Friesen
2014-05-08 16:02 ` Paolo Bonzini
2014-05-08 20:57 ` Chris Friesen
2014-05-09 1:44 ` ChenLiang
2014-05-09 3:31 ` Chris Friesen
2014-05-08 2:54 ` Gonglei (Arei)
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