From: Mel Gorman <mgorman@techsingularity.net>
To: Wei Yang <richard.weiyang@gmail.com>
Cc: willy@infradead.org, mhocko@suse.com, linux-mm@kvack.org,
akpm@linux-foundation.org
Subject: Re: [RFC] put page to pcp->lists[] tail if it is not on the same node
Date: Sun, 21 Oct 2018 13:12:51 +0100 [thread overview]
Message-ID: <20181021121251.GA8041@techsingularity.net> (raw)
In-Reply-To: <20181020163318.72oqszgdtqfafycu@master>
On Sat, Oct 20, 2018 at 04:33:18PM +0000, Wei Yang wrote:
> >Pages from remote nodes are not placed on local lists. Even in the slab
> >context, such objects are placed on alien caches which have special
> >handling.
> >
>
> Hmm... I am not sure get your point correctly.
>
The point is that one list should not contain a mix of pages belonging to
different nodes or zones or it'll result in unexpected behaviour. If you
are just shuffling the ordering of pages in the list, it needs justification
as to why that makes sense.
--
Mel Gorman
SUSE Labs
next prev parent reply other threads:[~2018-10-21 12:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-19 4:33 [RFC] put page to pcp->lists[] tail if it is not on the same node Wei Yang
2018-10-19 8:38 ` Mel Gorman
2018-10-20 0:54 ` Wei Yang
2018-10-20 16:33 ` Wei Yang
2018-10-21 2:36 ` Wei Yang
2018-10-21 12:12 ` Mel Gorman [this message]
2018-10-22 1:24 ` Wei Yang
2018-10-19 13:43 ` Vlastimil Babka
2018-10-20 1:38 ` Wei Yang
2018-10-20 16:10 ` Wei Yang
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