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Re: [Qemu-devel] [RFC][PATCH 10/16 v6] run dump at the background
From: |
Jan Kiszka |
Subject: |
Re: [Qemu-devel] [RFC][PATCH 10/16 v6] run dump at the background |
Date: |
Tue, 14 Feb 2012 19:27:34 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
On 2012-02-14 19:05, Jan Kiszka wrote:
> On 2012-02-09 04:28, Wen Congyang wrote:
>> The new monitor command dump may take long time to finish. So we need run it
>> at the background.
>
> How does it work? Like live migration, i.e. you retransmit (overwrite)
> already written but then dirtied pages? Hmm... no.
>
> What does background mean then? What is the use case? What if the user
> decides to resume the vm?
OK, that is addressed in patch 15! I would suggest merging it into this
patch. It makes sense to handle that case gracefully right from the
beginning.
OK, now I have some other question: What is the point of rate-limiting
the dump? The guest is not running, thus not competing for bandwidth.
Jan
--
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux
- Re: [Qemu-devel] [RFC][PATCH 08/16 v6] target-i386: add API to get dump info, (continued)
Re: [Qemu-devel] [RFC][PATCH 08/16 v6] target-i386: add API to get dump info, Peter Maydell, 2012/02/15
[Qemu-devel] [RFC][PATCH 09/16 v6] introduce a new monitor command 'dump' to dump guest's memory, Wen Congyang, 2012/02/08
[Qemu-devel] [RFC][PATCH 10/16 v6] run dump at the background, Wen Congyang, 2012/02/08
- Re: [Qemu-devel] [RFC][PATCH 10/16 v6] run dump at the background, Jan Kiszka, 2012/02/14
- Re: [Qemu-devel] [RFC][PATCH 10/16 v6] run dump at the background,
Jan Kiszka <=
- Re: [Qemu-devel] [RFC][PATCH 10/16 v6] run dump at the background, Wen Congyang, 2012/02/14
- Re: [Qemu-devel] [RFC][PATCH 10/16 v6] run dump at the background, Jan Kiszka, 2012/02/15
- Re: [Qemu-devel] [RFC][PATCH 10/16 v6] run dump at the background, Wen Congyang, 2012/02/15
- Re: [Qemu-devel] [RFC][PATCH 10/16 v6] run dump at the background, Jan Kiszka, 2012/02/15
- Re: [Qemu-devel] [RFC][PATCH 10/16 v6] run dump at the background, Wen Congyang, 2012/02/15
- Re: [Qemu-devel] [RFC][PATCH 10/16 v6] run dump at the background, Jan Kiszka, 2012/02/15
[Qemu-devel] [RFC][PATCH 11/16 v6] support detached dump, Wen Congyang, 2012/02/08
[Qemu-devel] [RFC][PATCH 12/16 v6] support to cancel the current dumping, Wen Congyang, 2012/02/08
[Qemu-devel] [RFC][PATCH 13/16 v6] support to set dumping speed, Wen Congyang, 2012/02/08
[Qemu-devel] [RFC][PATCH 14/16 v6] support to query dumping status, Wen Congyang, 2012/02/08