migration: Skip the first dirty sync

[PATCH v1 0/2] migration: Skip the first dirty sync

Hyman Huang posted 2 patches 2 weeks ago

Download series mbox

hw/virtio/virtio-balloon.c |  2 +-
migration/cpu-throttle.c   |  2 +-
migration/ram.c            | 11 ++++++++---
3 files changed, 10 insertions(+), 5 deletions(-)

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[PATCH v1 0/2] migration: Skip the first dirty sync

Posted by Hyman Huang 2 weeks ago

The first iteration's RAMBlock dirty sync can be omitted because QEMU
always initializes the RAMBlock's bmap to all 1s by default.

Prior to that, a pre-requisite patch was offered to maintain the free
page optimizing behavior.

For more details, please refers to:
https://lore.kernel.org/qemu-devel/CAK9dgmZSmoydJkFQP5VXfN21etMZc_bNq51R+if08F+NTApN_A@mail.gmail.com/T/#t

Please review, thanks

Yong

Hyman Huang (2):
  virtio-balloon: Enable free page hinting during PRECOPY_NOTIFY_SETUP
  migration: Do not perform RAMBlock dirty sync during the first
    iteration

 hw/virtio/virtio-balloon.c |  2 +-
 migration/cpu-throttle.c   |  2 +-
 migration/ram.c            | 11 ++++++++---
 3 files changed, 10 insertions(+), 5 deletions(-)

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2.39.1