* Hailiang Zhang (zhang.zhanghaili...@huawei.com) wrote: > Hi, > > This is an untested serial that tries to reduce VM's pause time > while do checkpoint in COLO state. > > The second patch tries to reduce the total number of dirty pages > while do checkpoint with VM been paused, instead of sending all > dirty pages while VM been pause, it sends part of dirty pages during > the gap time of two checkpoints when SVM and PVM are running. > > The third patch tries to reduce the pause time of backup ram into > cache in secondary part.
This is quite nice; I've asked for a clarification on the last one, but it's only a tidy up. I guess this really helps continuous-COLO as well, because it means that restarting to the sync to the new secondary is a lot simpler? Dave > > Hailiang Zhang (3): > migration/colo: wrap incoming checkpoint process into new helper > COLO: Migrate dirty pages during the gap of checkpointing > COLO: Optimize memory back-up process > > migration/colo.c | 332 +++++++++++++++++++++++++---------------- > migration/migration.h | 1 + > migration/ram.c | 35 ++++- > migration/ram.h | 1 + > migration/trace-events | 1 + > qapi/migration.json | 4 +- > 6 files changed, 234 insertions(+), 140 deletions(-) > > -- > 2.21.0 > > -- Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
