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Re: [Qemu-block] [PATCH 2/2] docs: Document the new default sizes of the

From: Eric Blake
Subject: Re: [Qemu-block] [PATCH 2/2] docs: Document the new default sizes of the qcow2 caches
Date: Tue, 13 Mar 2018 13:25:30 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0

On 03/13/2018 10:02 AM, Alberto Garcia wrote:
We have just reduced the refcount cache size to the minimum unless
the user explicitly requests a larger one, so we have to update the
documentation to reflect this change.

Signed-off-by: Alberto Garcia <address@hidden>
  docs/qcow2-cache.txt | 31 ++++++++++++++-----------------
  1 file changed, 14 insertions(+), 17 deletions(-)

+Before QEMU 2.12 the refcount cache had a default size of 1/4 of the
+L2 cache size. This resulted in unnecessarily large caches, so now the
+refcount cache is as small as possible unless overriden by the user.


Reviewed-by: Eric Blake <address@hidden>

Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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