linux-kernel - Re: [PATCH v10] mm: vmscan: try to reclaim swapcache pages if no swap space

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Message-ID: <878r5wqcmy.fsf@yhuang6-desk2.ccr.corp.intel.com>
Date: Fri, 15 Dec 2023 13:05:09 +0800
From: "Huang, Ying" <ying.huang@...el.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Michal Hocko <mhocko@...e.com>,  Minchan Kim <minchan@...nel.org>,
  Yosry Ahmed <yosryahmed@...gle.com>,  Liu Shixin <liushixin2@...wei.com>,
  Yu Zhao <yuzhao@...gle.com>,  Sachin Sant <sachinp@...ux.ibm.com>,
  Johannes Weiner <hannes@...xchg.org>,  Kefeng Wang
 <wangkefeng.wang@...wei.com>,  linux-mm@...ck.org,
  linux-kernel@...r.kernel.org,  Mel Gorman <mgorman@...hsingularity.net>
Subject: Re: [PATCH v10] mm: vmscan: try to reclaim swapcache pages if no
 swap space

Andrew Morton <akpm@...ux-foundation.org> writes:

> tl;dr, what's the viewpoint on this patch now?
>
> I have a note here that we're hoping input from Johannes, Vlastimil and
> Mel (please).

Michal has performance concerns.  So, I think that we need to stop
scanning anon LRU if don't find enough page in swap cache at the tail of
the inactive list.

--
Best Regards,
Huang, Ying