On Mon, Nov 21, 2022 at 11:26:38AM -0500, huang...@chinatelecom.cn wrote: > From: Hyman Huang(黄勇) <huang...@chinatelecom.cn> > > 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 > migratioin-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) <huang...@chinatelecom.cn>
Acked-by: Peter Xu <pet...@redhat.com> PS: please replace 7.1 with 7.3 in this patch and the previous one. -- Peter Xu
