diff options
| author | Cao jin <caoj.fnst@cn.fujitsu.com> | 2016-09-08 19:13:58 +0800 |
|---|---|---|
| committer | Juan Quintela <quintela@trasno.org> | 2016-10-13 17:23:53 +0200 |
| commit | 7c2b0f65cc2b6b14ad797549b8bde13aa97f6ba2 (patch) | |
| tree | ea5627e0532e0cbfffd103be09cff3796f5122d0 /docs/xbzrle.txt | |
| parent | 2ff30257974e19ebe2a97baad32ac29c06da5fb9 (diff) | |
docs/xbzrle: correction
1. Default cache size is 64MB.
2. Semantics correction.
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'docs/xbzrle.txt')
| -rw-r--r-- | docs/xbzrle.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/docs/xbzrle.txt b/docs/xbzrle.txt index 52c8511a4c..c0a7dfd44c 100644 --- a/docs/xbzrle.txt +++ b/docs/xbzrle.txt @@ -42,7 +42,7 @@ nzrun = length byte... length = uleb128 encoded integer On the sender side XBZRLE is used as a compact delta encoding of page updates, -retrieving the old page content from the cache (default size of 512 MB). The +retrieving the old page content from the cache (default size of 64MB). The receiving side uses the existing page's content and XBZRLE to decode the new page's content. @@ -73,7 +73,7 @@ e9 07 0f 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 03 01 67 01 01 69 Cache update strategy ===================== -Keeping the hot pages in the cache is effective for decreased cache +Keeping the hot pages in the cache is effective for decreasing cache misses. XBZRLE uses a counter as the age of each page. The counter will increase after each ram dirty bitmap sync. When a cache conflict is detected, XBZRLE will only evict pages in the cache that are older than |