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From: Vladimir Sementsov-Ogievskiy <vsementsov@parallels.com>
To: Paolo Bonzini <pbonzini@redhat.com>, qemu-devel@nongnu.org
Cc: kwolf@redhat.com, den@openvz.org, jsnow@redhat.com, stefanha@redhat.com
Subject: Re: [Qemu-devel] [PATCH 9/9] block-migration: add named dirty bitmaps migration
Date: Mon, 12 Jan 2015 17:20:58 +0300	[thread overview]
Message-ID: <54B3D84A.8000207@parallels.com> (raw)
In-Reply-To: <54AF0662.7050303@redhat.com>


Best regards,
Vladimir

On 09.01.2015 01:36, Paolo Bonzini wrote:
> The bitmaps are transmitted many times in their entirety, but only the 
> last copy actually means something. The others are lost. This means 
> you should use the non-live interface (register_savevm). This will 
> simplify the code a lot.

But what if the dirty bitmap is really big?

For example, for 5 Pb drive the bitmap with granularity 65536 will be of 
2 Gb size. So, shouldn't it be migrated iteratively for live migration?

  parent reply	other threads:[~2015-01-12 14:23 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-11 14:17 [Qemu-devel] [PATCH 0/8] Dirty bitmaps migration Vladimir Sementsov-Ogievskiy
2014-12-11 14:17 ` [Qemu-devel] [PATCH 1/9] block: rename bdrv_reset_dirty_bitmap Vladimir Sementsov-Ogievskiy
2015-01-08 21:19   ` John Snow
2014-12-11 14:17 ` [Qemu-devel] [PATCH 2/9] block-migration: fix pending() return value Vladimir Sementsov-Ogievskiy
2015-01-08 21:20   ` John Snow
2015-01-09 19:01     ` Dr. David Alan Gilbert
2014-12-11 14:17 ` [Qemu-devel] [PATCH 3/9] block: fix spoiling all dirty bitmaps by mirror and migration Vladimir Sementsov-Ogievskiy
2015-01-08 21:20   ` John Snow
2014-12-11 14:17 ` [Qemu-devel] [PATCH 4/9] hbitmap: store / restore Vladimir Sementsov-Ogievskiy
2015-01-08 21:21   ` John Snow
2015-01-08 21:37     ` Paolo Bonzini
2015-01-13 12:59     ` Vladimir Sementsov-Ogievskiy
2015-01-13 17:08       ` John Snow
2015-01-14 10:29         ` Vladimir Sementsov-Ogievskiy
2014-12-11 14:17 ` [Qemu-devel] [PATCH 5/9] block: BdrvDirtyBitmap store/restore interface Vladimir Sementsov-Ogievskiy
2015-01-08 21:22   ` John Snow
2015-01-14 11:27   ` Vladimir Sementsov-Ogievskiy
2014-12-11 14:17 ` [Qemu-devel] [PATCH 6/9] block-migration: tiny refactoring Vladimir Sementsov-Ogievskiy
2015-01-08 21:23   ` John Snow
2015-01-14 12:26     ` Vladimir Sementsov-Ogievskiy
2015-01-14 16:53       ` John Snow
2014-12-11 14:17 ` [Qemu-devel] [PATCH 7/9] block-migration: remove not needed iothread lock Vladimir Sementsov-Ogievskiy
2015-01-08 21:24   ` John Snow
2015-01-16 12:54     ` Vladimir Sementsov-Ogievskiy
2015-01-08 22:28   ` Paolo Bonzini
2015-01-16 13:03     ` Vladimir Sementsov-Ogievskiy
2014-12-11 14:17 ` [Qemu-devel] [PATCH 8/9] migration: add dirty parameter Vladimir Sementsov-Ogievskiy
2014-12-11 15:18   ` Eric Blake
2014-12-15  8:33     ` Vladimir Sementsov-Ogievskiy
2015-01-08 21:51   ` John Snow
2015-01-08 22:29     ` Eric Blake
2015-01-08 22:31       ` John Snow
2015-01-08 22:37     ` Paolo Bonzini
2014-12-11 14:17 ` [Qemu-devel] [PATCH 9/9] block-migration: add named dirty bitmaps migration Vladimir Sementsov-Ogievskiy
2015-01-08 22:05   ` John Snow
2015-01-17 17:17     ` Vladimir Sementsov-Ogievskiy
2015-01-20 17:25       ` John Snow
2015-01-08 22:36   ` Paolo Bonzini
2015-01-08 22:45     ` Eric Blake
2015-01-08 22:49       ` Paolo Bonzini
2015-01-12 14:20     ` Vladimir Sementsov-Ogievskiy [this message]
2015-01-12 14:42       ` Paolo Bonzini
2015-01-12 16:48   ` Paolo Bonzini
2015-01-12 17:31     ` John Snow
2015-01-12 19:09       ` Paolo Bonzini
2015-01-13  9:16         ` Vladimir Sementsov-Ogievskiy
2015-01-13 16:35           ` John Snow

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