[Qemu-devel] [PATCH v3 0/5] Reduce down time during migration without shared storage

[Liran Schour]

This series of patches reduce the down time of the guest during a migration
without shared storage. It does that by start transfer dirty blocks in the 
iterative phase. In the current code transferring of dirty blocks begins only 
during the full phase while the guest is suspended. Therefore the guest will 
be suspended linear to the amount of data that was written to disk during
migration.

Changes from v2: - don't duplicate code by using qemu_get_clock_ns() use Paolo 
                   Bonzini <address@hidden> patch.
                 - Coding style issues
                 - Remove unused constants
Changes from v1: - infer storage performance by get_clock()
                 - remove dirty max iterations, user is responsible for 
                   migration convergence
                 - remove trailing whitespaces
                 - minor cleanups

 block-migration.c |  235 +++++++++++++++++++++++++++++++++++++---------------
 block.c           |   16 +++-
 block.h           |    1 +
 block_int.h       |    1 +
 qemu-timer.h      |    1 +
 vl.c              |   21 +++++-
 6 files changed, 203 insertions(+), 72 deletions(-)

Signed-off-by: Liran Schour <address@hidden>