3. Set the XBZRLE cache size - the cache size is in MBytes and should be a
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
cache size: H bytes
xbzrle transferred: I kbytes
xbzrle pages: J pages
- xbzrle cache miss: K
- xbzrle overflow: L
+ xbzrle cache miss: K pages
+ xbzrle cache miss rate: L
+ xbzrle encoding rate: M
+ xbzrle overflow: N
-xbzrle cache-miss: the number of cache misses to date - high cache-miss rate
+xbzrle cache miss: the number of cache misses to date - high cache-miss rate
indicates that the cache size is set too low.
xbzrle overflow: the number of overflows in the decoding which where the delta
could not be compressed. This can happen if the changes in the pages are too