From: Christoph Lameter <cl@linux.com>
To: Mel Gorman <mgorman@techsingularity.net>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@suse.com>, Vlastimil Babka <vbabka@suse.cz>,
Johannes Weiner <hannes@cmpxchg.org>,
Jesper Dangaard Brouer <brouer@redhat.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Linux-MM <linux-mm@kvack.org>,
Linux-Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] mm: page_alloc: High-order per-cpu page allocator v7
Date: Wed, 7 Dec 2016 10:40:47 -0600 (CST) [thread overview]
Message-ID: <alpine.DEB.2.20.1612071037480.11056@east.gentwo.org> (raw)
In-Reply-To: <20161207155750.yfsizliaoodks5k4@techsingularity.net>
On Wed, 7 Dec 2016, Mel Gorman wrote:
> Which is related to the fundamentals of fragmentation control in
> general. At some point there will have to be a revisit to get back to
> the type of reliability that existed in 3.0-era without the massive
> overhead it incurred. As stated before, I agree it's important but
> outside the scope of this patch.
What reliability issues are there? 3.X kernels were better in what
way? Which overhead are we talking about?
Fragmentation has been a problem for a long time and the issue gets worse
as memory sizes increase, the hardware improves and the expectations on
throughput and reliability increase.
next prev parent reply other threads:[~2016-12-07 16:40 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-07 10:12 [PATCH] mm: page_alloc: High-order per-cpu page allocator v7 Mel Gorman
2016-12-07 14:52 ` Christoph Lameter
2016-12-07 15:57 ` Mel Gorman
2016-12-07 16:40 ` Christoph Lameter [this message]
2016-12-07 16:45 ` Mel Gorman
2016-12-07 17:11 ` Christoph Lameter
2016-12-07 17:35 ` Mel Gorman
2016-12-07 19:00 ` Eric Dumazet
2016-12-07 19:11 ` Eric Dumazet
2016-12-07 19:48 ` Mel Gorman
2016-12-07 20:10 ` Eric Dumazet
2016-12-07 21:19 ` Mel Gorman
2016-12-07 23:25 ` Mel Gorman
2016-12-08 8:22 ` Jesper Dangaard Brouer
2016-12-08 9:18 ` Mel Gorman
2016-12-08 10:43 ` Jesper Dangaard Brouer
2016-12-08 11:06 ` Mel Gorman
2016-12-08 14:48 ` Jesper Dangaard Brouer
2016-12-08 15:11 ` Mel Gorman
2016-12-08 17:19 ` Jesper Dangaard Brouer
2016-12-08 17:39 ` Mel Gorman
2016-12-08 16:04 ` Eric Dumazet
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