[Qemu-devel] [PATCH v4 0/8] migration: Optimizate the xbzrle and fix one corruption issue

[arei.gonglei]

From: ChenLiang <address@hidden>

V3-->V4
* Excluding auto convergence changes, modify it later.

V2-->V3
* rename the bitmap_sync_cnt to bitmap_sync_counter
* expose xbzrle cache miss rate

V1-->V2
* expose the counter that logs the times of updating the dirty
  bitmap to end user.

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 (8):
  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
  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 ++++--
 9 files changed, 111 insertions(+), 115 deletions(-)

-- 
1.7.12.4