From: Max Reitz <mreitz@redhat.com>
To: Kevin Wolf <kwolf@redhat.com>
Cc: xuanmao_001@163.com, qemu-devel@nongnu.org, stefanha@redhat.com
Subject: Re: [Qemu-devel] [PATCH 0/2] qcow2: Discard VM state in active L1 after creating snapshot
Date: Mon, 09 Sep 2013 16:27:56 +0200 [thread overview]
Message-ID: <522DDAEC.1050102@redhat.com> (raw)
In-Reply-To: <1378463546-26671-1-git-send-email-kwolf@redhat.com>
On 2013-09-06 12:32, Kevin Wolf wrote:
> This series fixes that 'savevm' becomes much slower after the first snapshot.
> The reason is unnecessary COW for the VM state, which is now avoided.
>
> Kevin Wolf (2):
> qcow2: Pass discard type to qcow2_discard_clusters()
> qcow2: Discard VM state in active L1 after creating snapshot
>
> block/qcow2-cluster.c | 8 ++++----
> block/qcow2-snapshot.c | 7 +++++++
> block/qcow2.c | 7 +------
> block/qcow2.h | 7 ++++++-
> 4 files changed, 18 insertions(+), 11 deletions(-)
>
Reviewed-by: Max Reitz <mreitz@redhat.com>
prev parent reply other threads:[~2013-09-09 14:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-06 10:32 [Qemu-devel] [PATCH 0/2] qcow2: Discard VM state in active L1 after creating snapshot Kevin Wolf
2013-09-06 10:32 ` [Qemu-devel] [PATCH 1/2] qcow2: Pass discard type to qcow2_discard_clusters() Kevin Wolf
2013-09-06 10:32 ` [Qemu-devel] [PATCH 2/2] qcow2: Discard VM state in active L1 after creating snapshot Kevin Wolf
2013-09-09 14:27 ` Max Reitz [this message]
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