On Mon, Apr 19, 2021 at 10:50:47PM +0000, Dennis Zhou wrote: > The last patch implements reclaim by adding 2 additional lists where a > chunk's lifecycle is: > active_slot -> to_depopulate_slot -> sidelined_slot > > This worked great because we're able to nicely converge paths into > isolation. However, it's a bit aggressive to run for every free page. > Let's accumulate a few free pages before we do this. To do this, the new > lifecycle is: > active_slot -> sidelined_slot -> to_depopulate_slot -> sidelined_slot > > The transition from sidelined_slot -> to_depopulate_slot occurs on a > threshold instead of before where it directly went to the > to_depopulate_slot. pcpu_nr_isolated_empty_pop_pages[] is introduced to > aid with this. > > Suggested-by: Roman Gushchin <guro@xxxxxx> > Signed-off-by: Dennis Zhou <dennis@xxxxxxxxxx> Acked-by: Roman Gushchin <guro@xxxxxx> Thanks, Dennis!
