From: ChenLiang <chenlian...@huawei.com>
V5-->V4
* Fix two issues: one is cache_insert don't update the page which
has been in the cache. Another avoiding the risk that run
xbzrle_encode_buffer on changing data.
a. Optimization the xbzrle remarkable decrease the cache misses.
The efficiency of compress increases more than fifty times.
Before the patch set, the cache almost totally miss when the
number of cache item less than the dirty page number. Now the
hot pages in the cache will not be replaced by other pages.
b. Reducing the data copy
c. Fix one corruption issues.
ChenLiang (10):
XBZRLE: Fix one XBZRLE corruption issues
migration: Add counts of updating the dirty bitmap
migration: expose the bitmap_sync_count to the end user
migration: expose xbzrle cache miss rate
XBZRLE: optimize XBZRLE to decrease the cache misses
XBZRLE: rebuild the cache_is_cached function
xbzrle: don't check the value in the vm ram repeatedly
xbzrle: check 8 bytes at a time after an concurrency scene
migration: optimize xbzrle by reducing data copy
migration: clear the dead code
arch_init.c | 74 +++++++++++++++++-------------
docs/xbzrle.txt | 8 ++++
hmp.c | 4 ++
include/migration/migration.h | 2 +
include/migration/page_cache.h | 10 ++--
migration.c | 3 ++
page_cache.c | 101 +++++++++++------------------------------
qapi-schema.json | 9 +++-
qmp-commands.hx | 15 ++++--
xbzrle.c | 48 ++++++++++++++------
10 files changed, 144 insertions(+), 130 deletions(-)
--
1.7.12.4
