From: Hillf Danton <dhillf@gmail.com>
To: Rik van Riel <riel@redhat.com>
Cc: dhillf@sina.com, Mel Gorman <mgorman@suse.de>,
Andrea Arcangeli <aarcange@redhat.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>
Subject: Re: [RFC PATCH] mm: numa: adjust hinting fault record if page is migrated
Date: Sun, 15 Sep 2013 09:11:24 +0800 [thread overview]
Message-ID: <CAJd=RBDhm5ZAQdi4K+JK3FZ-=jaNz6peyLtSxMrBGcGmKX=6qw@mail.gmail.com> (raw)
In-Reply-To: <523486E4.3000206@redhat.com>
Hello Rik
On Sat, Sep 14, 2013 at 11:55 PM, Rik van Riel <riel@redhat.com> wrote:
> On 09/14/2013 07:53 AM, Hillf Danton wrote:
>> After page A on source node is migrated to page B on target node, hinting
>> fault is recorded on the target node for B. On the source node there is
>> another record for A, since a two-stage filter is used when migrating pages.
>>
>> Page A is no longer used after migration, so we have to erase its record.
>
> What kind of performance changes have you observed with this patch?
>
> What benchmarks have you run, and on what kind of systems?
>
Due to no NUMA box, I can not answer you now.
I will try best to borrow one next Monday.
Thanks
Hillf
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prev parent reply other threads:[~2013-09-15 1:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-14 11:53 Hillf Danton
2013-09-14 15:55 ` Rik van Riel
2013-09-15 1:11 ` Hillf Danton [this message]
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