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Re: [Qemu-devel] [PATCH 05/10] migration: Fix the migrate auto converge

From: Eric Blake
Subject: Re: [Qemu-devel] [PATCH 05/10] migration: Fix the migrate auto converge process
Date: Tue, 11 Mar 2014 14:55:18 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0

On 03/11/2014 02:48 PM, Juan Quintela wrote:
> <address@hidden> wrote:
>> From: ChenLiang <address@hidden>
>> It is inaccuracy and complex that using the transfer speed of
>> migration thread to determine whether the convergence migration.
>> The dirty page may be compressed by XBZRLE or ZERO_PAGE.The counter
>> of updating dirty bitmap will be increasing continuously if the
>> migration can't convergence.
> "It is inexact and complex to use the migration transfer speed to
> dectermine weather the convergence of migration."

or even better (plus spelling fixes):

determine whether migration is converging

>> @@ -530,21 +523,11 @@ static void migration_bitmap_sync(void)
>>      /* more than 1 second = 1000 millisecons */

Pre-existing, but as long as you are touching this area of code:

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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