On 7/31/25 20:34, Frank van der Linden wrote: > Not sure what the right thing to do would be. Either explicitly boost > the priority of a thread temporarily during migrate_pages_batch, or > mitigate the issue by dealing with 'busy' pages more quickly in > migrate_pages_batch. There's a workaround for realtime tasks. If you mlock[all]() their memory, setting sysctl vm.compact_unevictable_allowed to 0 should exclude these pages from migration by compaction. Vlastimil > - Frank >
