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Re: [Qemu-devel] [PATCH v2 00/12] qcow2: Add new overlap check functions
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH v2 00/12] qcow2: Add new overlap check functions |
Date: |
Tue, 25 Nov 2014 13:25:46 +0000 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Mon, Nov 24, 2014 at 04:56:48PM +0100, Max Reitz wrote:
> * CPU usage at runtime decreased by 150 to 275 percent on
> overlap-check-heavy tasks
> * No additional performance problems at loading time (in theory has the
> same runtime complexity as a single overlap check right now; in
> practice I could not find any problems)
> * Decent RAM usage (40 kB for a 1 TB image with 64 kB clusters; 40 MB
> for a 1 PB image etc. pp.)
RAM usage seems fine and the CPU reduction is very nice.
I will review the individual patches for QEMU 2.3. If there is demand
it can be added to the QEMU 2.2 -stable branch at a later date.
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- [Qemu-devel] [PATCH v2 07/12] qcow2/overlaps: Protect active L1 table, (continued)
- [Qemu-devel] [PATCH v2 07/12] qcow2/overlaps: Protect active L1 table, Max Reitz, 2014/11/24
- [Qemu-devel] [PATCH v2 08/12] qcow2/overlaps: Protect active L2 tables, Max Reitz, 2014/11/24
- [Qemu-devel] [PATCH v2 06/12] qcow2/overlaps: Protect refcount blocks, Max Reitz, 2014/11/24
- [Qemu-devel] [PATCH v2 09/12] qcow2/overlaps: Protect snapshot table, Max Reitz, 2014/11/24
- [Qemu-devel] [PATCH v2 10/12] qcow2/overlaps: Protect inactive L1 tables, Max Reitz, 2014/11/24
- [Qemu-devel] [PATCH v2 12/12] qcow2: Use new metadata overlap check function, Max Reitz, 2014/11/24
- [Qemu-devel] [PATCH v2 11/12] qcow2/overlaps: Protect inactive L2 tables, Max Reitz, 2014/11/24
- Re: [Qemu-devel] [PATCH v2 00/12] qcow2: Add new overlap check functions, Eric Blake, 2014/11/24
- Re: [Qemu-devel] [PATCH v2 00/12] qcow2: Add new overlap check functions, Max Reitz, 2014/11/24
- Re: [Qemu-devel] [PATCH v2 00/12] qcow2: Add new overlap check functions, Max Reitz, 2014/11/25
- Re: [Qemu-devel] [PATCH v2 00/12] qcow2: Add new overlap check functions,
Stefan Hajnoczi <=