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docs/xbzrle: correction

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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>
This commit is contained in:
Cao jin 2016-09-08 19:13:58 +08:00 committed by Juan Quintela
parent 2ff3025797
commit 7c2b0f65cc
1 changed files with 2 additions and 2 deletions
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docs/xbzrle.txt
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@ -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