From: Wei Yang <richard.weiyang@gmail.com>
To: Mel Gorman <mgorman@techsingularity.net>
Cc: Wei Yang <richard.weiyang@gmail.com>,
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: Mon, 22 Oct 2018 01:24:06 +0000 [thread overview]
Message-ID: <20181022012406.7qenlvgabt2s34as@master> (raw)
In-Reply-To: <20181021121251.GA8041@techsingularity.net>
On Sun, Oct 21, 2018 at 01:12:51PM +0100, Mel Gorman wrote:
>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.
>
Yep, you are right :-)
>--
>Mel Gorman
>SUSE Labs
--
Wei Yang
Help you, Help me
next prev parent reply other threads:[~2018-10-22 1:24 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
2018-10-22 1:24 ` Wei Yang [this message]
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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