From: Michal Hocko <mhocko@kernel.org>
To: Christoph Lameter <cl@linux.com>
Cc: Matthew Wilcox <willy@infradead.org>,
linux-mm@kvack.org, Pekka Enberg <penberg@cs.helsinki.fi>,
akpm@linux-foundation.org, Mel Gorman <mel@skynet.ie>,
andi@firstfloor.org, Rik van Riel <riel@redhat.com>
Subject: Re: [RFC 0/6] Slab Fragmentation Reduction V16
Date: Mon, 13 Mar 2017 10:15:16 +0100 [thread overview]
Message-ID: <20170313091515.GD31518@dhcp22.suse.cz> (raw)
In-Reply-To: <alpine.DEB.2.20.1703080955180.16208@east.gentwo.org>
On Wed 08-03-17 09:58:58, Cristopher Lameter wrote:
> On Wed, 8 Mar 2017, Michal Hocko wrote:
>
> > JFTR the previous version was posted here: https://lwn.net/Articles/371892/
> > and Dave had some concerns https://lkml.org/lkml/2010/2/8/329 which led
> > to a different approach and design of the slab shrinking
> > https://lkml.org/lkml/2010/2/8/329.
> >
> > I haven't looked at this series yet but has those concerns been
> > addressed/considered?
>
> Well yes this has been discussed for a couple of years. The basic approach
> is not only needed for the file systems (like what Chinner was focusing
> on) but in general for slab caches. The objection was regarding the
> integration into the slab reclaim logic in vmscan.c and the filesystem
> reclaim in general.
>
> Dave and Matthew were at linux.conf.au and we agreed to first try it with
> the radix tree and then generalize from there. The reclaim logic
> was a bit hacky and we will have to find some better way to
> integrate this.
>
> There is a video on youtube capturing the discussion (My talk on movable
> kernel objects).
Hmm, OK. There seems to be a slot to discuss this at LSFMM this year so
I hope we can discuss your proposal there.
--
Michal Hocko
SUSE Labs
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next prev parent reply other threads:[~2017-03-13 9:15 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-07 21:24 Christoph Lameter
2017-03-07 21:24 ` [RFC 1/6] slub: Replace ctor field with ops field in /sys/slab/* Christoph Lameter
2017-03-07 21:24 ` [RFC 2/6] slub: Add defrag_ratio field and sysfs support Christoph Lameter
2017-03-07 21:24 ` [RFC 3/6] slub: Add get() and kick() methods Christoph Lameter
2017-03-07 21:24 ` [RFC 4/6] slub: Sort slab cache list and establish maximum objects for defrag slabs Christoph Lameter
2017-03-07 21:24 ` [RFC 5/6] slub: Slab defrag core Christoph Lameter
2017-03-07 22:03 ` Matthew Wilcox
2017-03-07 21:24 ` [RFC 6/6] slub: Extend slabinfo to support -D and -F options Christoph Lameter
2017-03-08 14:34 ` [RFC 0/6] Slab Fragmentation Reduction V16 Michal Hocko
2017-03-08 15:58 ` Christoph Lameter
2017-03-13 9:15 ` Michal Hocko [this message]
2017-03-13 9:16 ` Michal Hocko
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