From: ChenLiang <chenlian...@huawei.com> Signed-off-by: ChenLiang <chenlian...@huawei.com> Signed-off-by: Gonglei <arei.gong...@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. -- 1.7.12.4
