On 16.08.24 09:48, gaoxu wrote:
Replace lruvec_add_folio with lruvec_add_folio_tail in the lru_lazyfree_fn:
1. The lazy-free folio is added to the LRU_INACTIVE_FILE list. If it's
moved to the LRU tail, it allows for faster release lazy-free folio and
reduces the impact on file refault.
2. When mglru is enabled, the lazy-free folio is reclaimabled and should be
added using lru_gen_add_folio(lruvec, folio, true) instead of
lru_gen_add_folio(lruvec, folio, false) for adding to gen.
With the change in place, workingset_refault_file is reduced by 33% in the
continuous startup testing of the applications in the Android system.
The patch subject does not match what you do in the patch -- at all.
"mm/swap: use lruvec_add_folio_tail() in lru_lazyfree()" ?
--
Cheers,
David / dhildenb
