From: Kevin Wolf <kwolf@redhat.com>
To: Alberto Garcia <berto@igalia.com>
Cc: qemu-block@nongnu.org, qemu-devel@nongnu.org,
Stefan Hajnoczi <stefanha@redhat.com>,
Max Reitz <mreitz@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v6 2/4] qcow2: add option to clean unused cache entries after some time
Date: Wed, 8 Jul 2015 14:43:49 +0200 [thread overview]
Message-ID: <20150708124349.GJ4117@noname.redhat.com> (raw)
In-Reply-To: <04bf5acbb995258f57f86f6922d3053dd45dd3cd.1433521455.git.berto@igalia.com>
Am 05.06.2015 um 18:27 hat Alberto Garcia geschrieben:
> This adds a new 'cache-clean-interval' option that cleans all qcow2
> cache entries that haven't been used in a certain interval, given in
> seconds.
>
> This allows setting a large L2 cache size so it can handle scenarios
> with lots of I/O and at the same time use little memory during periods
> of inactivity.
>
> This feature currently relies on MADV_DONTNEED to free that memory, so
> it is not useful in systems that don't follow that behavior.
>
> Signed-off-by: Alberto Garcia <berto@igalia.com>
> Reviewed-by: Max Reitz <mreitz@redhat.com>
This patch doesn't apply cleanly any more. Can you please rebase and
change the QAPI documenation to say "since 2.5"?
Kevin
next prev parent reply other threads:[~2015-07-08 12:44 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-05 16:27 [Qemu-devel] [PATCH v6 0/4] Clean unused entries in the qcow2 L2/refcount cache Alberto Garcia
2015-06-05 16:27 ` [Qemu-devel] [PATCH v6 1/4] qcow2: mark the memory as no longer needed after qcow2_cache_empty() Alberto Garcia
2015-06-05 16:27 ` [Qemu-devel] [PATCH v6 2/4] qcow2: add option to clean unused cache entries after some time Alberto Garcia
2015-07-08 12:43 ` Kevin Wolf [this message]
2015-06-05 16:27 ` [Qemu-devel] [PATCH v6 3/4] docs: document how to configure the qcow2 L2/refcount caches Alberto Garcia
2015-06-05 17:19 ` Max Reitz
2015-06-05 16:27 ` [Qemu-devel] [PATCH v6 4/4] qcow2: reorder fields in Qcow2CachedTable to reduce padding Alberto Garcia
2015-06-24 17:14 ` [Qemu-devel] [PATCH v6 0/4] Clean unused entries in the qcow2 L2/refcount cache Alberto Garcia
2015-06-25 12:41 ` [Qemu-devel] [Qemu-block] " Stefan Hajnoczi
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