On 1/25/25 17:20, Pasha Tatashin wrote: > Subject should be something like: > > mm/compaction: Make proactive compaction high watermark configurable via sysctl > > On Fri, Jan 24, 2025 at 1:21 PM Michal Clapinski <mclapinski@xxxxxxxxxx> wrote: >> >> Expose the diff between low and high watermark as a sysctl var. > > Please expand, for example: > > Currently, the difference between the low and high watermarks for > proactive compaction is hardcoded to 10. This hardcoded difference is > too large for free page reporting to work correctly. > > Add a new sysctl, `compaction_proactiveness_leeway`, to control the > difference between the low and high watermarks. Yeah, also please update Documentation/admin-guide/sysctl/vm.rst accordingly. Thanks, Vlastimil
