Re: [Qemu-devel] [PATCH 10/10] XBZRLE: update the doc of XBZRLE

[Juan Quintela <quintela@redhat.com>]

<arei.gonglei@huawei.com> wrote:
> From: ChenLiang <chenliang88@huawei.com>
>
> Signed-off-by: ChenLiang <chenliang88@huawei.com>
> Signed-off-by: Gonglei <arei.gonglei@huawei.com>
> ---
>  docs/xbzrle.txt | 7 +++++++
>  1 file changed, 7 insertions(+)
>
> diff --git a/docs/xbzrle.txt b/docs/xbzrle.txt
> index cc3a26a..cdf1e3e 100644
> --- a/docs/xbzrle.txt
> +++ b/docs/xbzrle.txt
> @@ -71,6 +71,13 @@ encoded buffer:
>  encoded length 24
>  e9 07 0f 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 03 01 67 01 01 69
>  
> +The strategy of updating cache
> +=================================
> +Keeping the hot page in cache is effective to decrease cache missing.
> +XBZRLE use a counter as the age of page. The counter will increase
> +after the ram dirty bitmap syncing. When cache conflicts XBZRLE only
> +replace the old page in cache.
> +
>  Usage
>  ======================
>  1. Verify the destination QEMU version is able to decode the new format.

You can merge this one with patch3, but not important.

Thanks, Juan.