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Re: [Qemu-devel] [PATCH v6 2/4] qcow2: add option to clean unused cache
From: |
Kevin Wolf |
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 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
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 <address@hidden>
> Reviewed-by: Max Reitz <address@hidden>
This patch doesn't apply cleanly any more. Can you please rebase and
change the QAPI documenation to say "since 2.5"?
Kevin
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