xbzrle: update xbzrle doc

Add new parameter description, also:
1. Remove unsociable space.
2. Nit picking: s/two/2 in report

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Message-Id: <20200320143216.423374-1-maozhongyi@cmss.chinamobile.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Mao Zhongyi 2020-03-20 22:32:16 +08:00 committed by Dr. David Alan Gilbert
parent 33ee3d96c7
commit 06b1c6f8b7
3 changed files with 8 additions and 3 deletions

View file

@ -92,6 +92,11 @@ Usage
power of 2. The cache default value is 64MBytes. (on source only)
{qemu} migrate_set_cache_size 256m
Commit 73af8dd8d7 "migration: Make xbzrle_cache_size a migration parameter"
(v2.11.0) deprecated migrate-set-cache-size, therefore, the new parameter
is recommended.
{qemu} migrate_set_parameter xbzrle-cache-size 256m
4. Start outgoing migration
{qemu} migrate -d tcp:destination.host:4444
{qemu} info migrate
@ -108,7 +113,7 @@ power of 2. The cache default value is 64MBytes. (on source only)
xbzrle transferred: I kbytes
xbzrle pages: J pages
xbzrle cache miss: K
xbzrle overflow : L
xbzrle overflow: L
xbzrle cache-miss: the number of cache misses to date - high cache-miss rate
indicates that the cache size is set too low.