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From: Juan Quintela <quintela@redhat.com>
In-Reply-To: <1394542415-5152-11-git-send-email-arei.gonglei@huawei.com> (arei
	gonglei's message of "Tue, 11 Mar 2014 20:53:35 +0800")
References: <1394542415-5152-1-git-send-email-arei.gonglei@huawei.com>
	<1394542415-5152-11-git-send-email-arei.gonglei@huawei.com>
Date: Tue, 11 Mar 2014 22:09:58 +0100
Message-ID: <87ob1c1ly1.fsf@elfo.mitica>
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Subject: Re: [Qemu-devel] [PATCH 10/10] XBZRLE: update the doc of XBZRLE
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To: arei.gonglei@huawei.com
Cc: ChenLiang <chenliang88@huawei.com>, weidong.huang@huawei.com, qemu-devel@nongnu.org, owasserm@redhat.com, pbonzini@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.