[PATCH 0/5] Eliminate multifd flush

[Juan Quintela]

Upstream multifd code synchronize all threads after each RAM section.  This is 
suboptimal.
Change it to only flush after we go trough all ram.

Preserve all semantics for old machine types.

Juan Quintela (5):
  multifd: Create property multifd-sync-each-iteration
  multifd: Put around all sync calls tests for each iteration
  migration: Simplify ram_find_and_save_block()
  migration: Make find_dirty_block() return a single parameter
  multifd: Only sync once each full round of memory

 migration/migration.h |  6 ++++
 hw/core/machine.c     |  1 +
 migration/migration.c | 10 ++++++
 migration/ram.c       | 80 ++++++++++++++++++++++++++++---------------
 4 files changed, 70 insertions(+), 27 deletions(-)

-- 
2.34.1