On 02/19/2018 08:54 AM, Alberto Garcia wrote:
This patch updates docs/qcow2-cache.txt explaining how to use the new
l2-cache-entry-size parameter.

Here's a more detailed technical description of this feature:


And here are some performance numbers:


Signed-off-by: Alberto Garcia <be...@igalia.com>
  docs/qcow2-cache.txt | 46 +++++++++++++++++++++++++++++++++++++++++++---
  1 file changed, 43 insertions(+), 3 deletions(-)

+Some things to take into account:
+ - The L2 cache entry size has the same restrictions as the cluster
+   size (power of two, at least 512 bytes).

Worth mentioning the upper limit of the cluster size?

Reviewed-by: Eric Blake <ebl...@redhat.com>

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

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