diff options
| author | Hyman Huang(黄勇) <yong.huang@smartx.com> | 2023-06-07 23:30:50 +0800 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2023-07-26 10:55:56 +0200 |
| commit | dc62395557b29312a9c2f9a1e0beece2557c3078 (patch) | |
| tree | 46c5d5bb78b2371af4825676d451b74af3abeb6e /pc-bios/README | |
| parent | 09f9ec99133ab5735b57486323d9c592630c9fc1 (diff) | |
migration: Introduce dirty-limit capability
Introduce migration dirty-limit capability, which can
be turned on before live migration and limit dirty
page rate durty live migration.
Introduce migrate_dirty_limit function to help check
if dirty-limit capability enabled during live migration.
Meanwhile, refactor vcpu_dirty_rate_stat_collect
so that period can be configured instead of hardcoded.
dirty-limit capability is kind of like auto-converge
but using dirty limit instead of traditional cpu-throttle
to throttle guest down. To enable this feature, turn on
the dirty-limit capability before live migration using
migrate-set-capabilities, and set the parameters
"x-vcpu-dirty-limit-period", "vcpu-dirty-limit" suitably
to speed up convergence.
Signed-off-by: Hyman Huang(黄勇) <yong.huang@smartx.com>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <168618975839.6361.17407633874747688653-4@git.sr.ht>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'pc-bios/README')
0 files changed, 0 insertions, 0 deletions