[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH v1 2/2] migration: add bitmap for copied page
From: |
Peter Xu |
Subject: |
Re: [Qemu-devel] [PATCH v1 2/2] migration: add bitmap for copied page |
Date: |
Wed, 14 Jun 2017 12:58:15 +0800 |
User-agent: |
Mutt/1.5.24 (2015-08-30) |
On Tue, Jun 13, 2017 at 03:00:28PM +0300, Alexey Perevalov wrote:
> On 06/13/2017 02:42 PM, Juan Quintela wrote:
[...]
> >>Bitmap is placed into RAMBlock as another postcopy/precopy
> >>related bitmaps.
> >Why are we not using the TARGET_PAGE_SIZE as units of the bitmap?
> Page size per ram block can be different, just to
> reduce whole size of bitmap.
I think one reason that we should use TARGET_PAGE_SIZE not
per-ramblock page size bitmap is that we need to let this
copied_bitmap/recved_bitmap work even during precopy phase, and in
precopy phase we are migrating pages in target page size, not host
page size.
Thanks,
--
Peter Xu
- [Qemu-devel] [PATCH v1 0/2] Add bitmap for copied pages in postcopy migration, Alexey Perevalov, 2017/06/13
- Message not available
- Message not available
- Re: [Qemu-devel] [PATCH v1 2/2] migration: add bitmap for copied page, Peter Xu, 2017/06/14
- Re: [Qemu-devel] [PATCH v1 2/2] migration: add bitmap for copied page, Alexey Perevalov, 2017/06/14
- Re: [Qemu-devel] [PATCH v1 2/2] migration: add bitmap for copied page, Peter Xu, 2017/06/14
- Re: [Qemu-devel] [PATCH v1 2/2] migration: add bitmap for copied page, Alexey Perevalov, 2017/06/14