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This will trigger memory reclaim sooner and make the THP >>>> availability more likely but this was at times where we didn't have >>>> pro-active compaction and many changes in the compaction. So is this >>>> actually needed in general resp. only large pageblocks systems? >>> >>> Ohh even better :) >>> >>> I did find it strange that we increased accordingly. >>> >>> I'm more than happy to see this just die altogether if people agree that's >>> a sensible way forward... >> >> It sounds reasonable to me. >> >> My first reaction was that THP generation might be hurt due to fewer >> free pages. But probably the extra min_free_kbytes just moves reclaim earlier, >> like Michal said. >> >> After removing this automatic min_free_kbytes bump, user can retain the old >> behavior by setting a higher min_free_kbytes at boot time. > > Nimrod - care to send a patch to just yank this min_free_kbytes change for > thp out? :) > > This solves your problem another way and is neater overall. Absolutely :) Thanks for the suggestion!