A guide to DAMON tuning and results interpretation for hot pages
The initial version of this post was initially posted to DAMON mailing list as https://lore.kernel.org/20241108232536.73843-1-sj@kernel.org Posting it here too, for visibility and after-posting updates for any needs. One of common issues that I received from DAMON users is that DAMON’s monitoring results show hot regions much less than expected. Specifically, the users find regions of only zero or low ’nr_accesses’ value from the DAMON-generated access pattern snapshots. In some cases, it turned out the problem can be alleviated by tuning DAMON parameters or changing the way to interpret the results....