Our goal is to keep memory usage of a VM low on the host. For that reason, we use free page reporting which by default reports free pages of order 9 and larger to the host to be freed. The feature works well only if the memory in the guest is not fragmented below pages of order 9. Proactive compaction can be reused to achieve defragmentation after some parameter tweaking. Michal Clapinski (2): mm/compaction: remove low watermark cap for proactive compaction mm/compaction: expose a new param for proactive compaction mm/compaction.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) -- 2.48.1.262.g85cc9f2d1e-goog
