From: Mikulas Patocka <mpatocka@redhat.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Christopher Lameter <cl@linux.com>,
Mike Snitzer <snitzer@redhat.com>,
Vlastimil Babka <vbabka@suse.cz>,
Matthew Wilcox <willy@infradead.org>,
Pekka Enberg <penberg@kernel.org>,
linux-mm@kvack.org, dm-devel@redhat.com,
David Rientjes <rientjes@google.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND] slab: introduce the flag SLAB_MINIMIZE_WASTE
Date: Wed, 13 Jun 2018 14:53:47 -0400 (EDT) [thread overview]
Message-ID: <alpine.LRH.2.02.1806131446110.26196@file01.intranet.prod.int.rdu2.redhat.com> (raw)
In-Reply-To: <20180613181654.GA24315@infradead.org>
On Wed, 13 Jun 2018, Christoph Hellwig wrote:
> On Wed, Jun 13, 2018 at 01:01:22PM -0400, Mikulas Patocka wrote:
> > Hi
> >
> > I'd like to ask about this patch - will you commit it, or do you want to
> > make some more changes to it?
>
> How about you resend it with the series adding an actual user once
> ready? I haven't actually seen patches using it posted on any list yet.
dm-bufio is already using it. Starting with the kernel 4.17 (f51f2e0a7fb1
- "dm bufio: support non-power-of-two block sizes"), dm-bufio has the
capability to use non-power-of-two buffers. It uses slab cache for its
buffers - so we would like to have this slab optimization - to avoid
excessive memory wasting.
Originally, the slub patch used a new flag SLAB_MINIMIZE_WASTE, but after
a suggestion from others, I reworked the patch so that it minimizes waste
of all slub caches and doesn't need an extra flag to activate.
Mikulas
next prev parent reply other threads:[~2018-06-13 18:53 UTC|newest]
Thread overview: 109+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-20 17:25 [PATCH] slab: introduce the flag SLAB_MINIMIZE_WASTE Mikulas Patocka
2018-03-20 17:35 ` Matthew Wilcox
2018-03-20 17:35 ` Matthew Wilcox
2018-03-20 17:54 ` Christopher Lameter
2018-03-20 17:54 ` Christopher Lameter
2018-03-20 19:22 ` Mikulas Patocka
2018-03-20 19:22 ` Mikulas Patocka
2018-03-20 20:42 ` Christopher Lameter
2018-03-20 20:42 ` Christopher Lameter
2018-03-20 22:02 ` Mikulas Patocka
2018-03-20 22:02 ` Mikulas Patocka
2018-03-21 15:35 ` Christopher Lameter
2018-03-21 15:35 ` Christopher Lameter
2018-03-21 16:25 ` Mikulas Patocka
2018-03-21 16:25 ` Mikulas Patocka
2018-03-21 17:10 ` Matthew Wilcox
2018-03-21 17:10 ` Matthew Wilcox
2018-03-21 17:30 ` Christopher Lameter
2018-03-21 17:30 ` Christopher Lameter
2018-03-21 17:39 ` Christopher Lameter
2018-03-21 17:39 ` Christopher Lameter
2018-03-21 17:49 ` Matthew Wilcox
2018-03-21 17:49 ` Matthew Wilcox
2018-03-21 18:01 ` Christopher Lameter
2018-03-21 18:01 ` Christopher Lameter
2018-03-21 18:23 ` Mikulas Patocka
2018-03-21 18:23 ` Mikulas Patocka
2018-03-21 18:40 ` Christopher Lameter
2018-03-21 18:40 ` Christopher Lameter
2018-03-21 18:55 ` Mikulas Patocka
2018-03-21 18:55 ` Mikulas Patocka
2018-03-21 18:55 ` Matthew Wilcox
2018-03-21 18:55 ` Matthew Wilcox
2018-03-21 18:58 ` Christopher Lameter
2018-03-21 18:58 ` Christopher Lameter
2018-03-21 19:25 ` Mikulas Patocka
2018-03-21 19:25 ` Mikulas Patocka
2018-03-21 18:36 ` Mikulas Patocka
2018-03-21 18:36 ` Mikulas Patocka
2018-03-21 18:57 ` Christopher Lameter
2018-03-21 18:57 ` Christopher Lameter
2018-03-21 19:19 ` Mikulas Patocka
2018-03-21 19:19 ` Mikulas Patocka
2018-03-21 20:09 ` Christopher Lameter
2018-03-21 20:09 ` Christopher Lameter
2018-03-21 20:37 ` Mikulas Patocka
2018-03-21 20:37 ` Mikulas Patocka
2018-03-23 15:10 ` Christopher Lameter
2018-03-23 15:10 ` Christopher Lameter
2018-03-23 15:31 ` Mikulas Patocka
2018-03-23 15:31 ` Mikulas Patocka
2018-03-23 15:48 ` Christopher Lameter
2018-03-23 15:48 ` Christopher Lameter
2018-04-13 9:22 ` Vlastimil Babka
2018-04-13 9:22 ` Vlastimil Babka
2018-04-13 15:10 ` Mike Snitzer
2018-04-13 15:10 ` Mike Snitzer
2018-04-16 12:38 ` Vlastimil Babka
2018-04-16 12:38 ` Vlastimil Babka
2018-04-16 14:27 ` Mike Snitzer
2018-04-16 14:27 ` Mike Snitzer
2018-04-16 14:37 ` Mikulas Patocka
2018-04-16 14:37 ` Mikulas Patocka
2018-04-16 14:46 ` Mike Snitzer
2018-04-16 14:46 ` Mike Snitzer
2018-04-16 14:57 ` Mikulas Patocka
2018-04-16 14:57 ` Mikulas Patocka
2018-04-16 15:18 ` Christopher Lameter
2018-04-16 15:18 ` Christopher Lameter
2018-04-16 15:25 ` Mikulas Patocka
2018-04-16 15:25 ` Mikulas Patocka
2018-04-16 15:45 ` Christopher Lameter
2018-04-16 15:45 ` Christopher Lameter
2018-04-16 19:36 ` Mikulas Patocka
2018-04-16 19:36 ` Mikulas Patocka
2018-04-16 19:53 ` Vlastimil Babka
2018-04-16 21:01 ` Mikulas Patocka
2018-04-17 14:40 ` Christopher Lameter
2018-04-17 18:53 ` Mikulas Patocka
2018-04-17 18:53 ` Mikulas Patocka
2018-04-17 21:42 ` Christopher Lameter
2018-04-17 14:49 ` Christopher Lameter
2018-04-17 14:49 ` Christopher Lameter
2018-04-17 14:47 ` Christopher Lameter
2018-04-17 14:47 ` Christopher Lameter
2018-04-16 19:32 ` [PATCH RESEND] " Mikulas Patocka
2018-04-17 14:45 ` Christopher Lameter
2018-04-17 16:16 ` Vlastimil Babka
2018-04-17 16:38 ` Christopher Lameter
2018-04-17 19:09 ` Mikulas Patocka
2018-04-17 17:26 ` Mikulas Patocka
2018-04-17 19:13 ` Vlastimil Babka
2018-04-17 19:06 ` Mikulas Patocka
2018-04-17 19:06 ` Mikulas Patocka
2018-04-18 14:55 ` Christopher Lameter
2018-04-25 21:04 ` Mikulas Patocka
2018-04-25 23:24 ` Mikulas Patocka
2018-04-26 19:01 ` Christopher Lameter
2018-04-26 21:09 ` Mikulas Patocka
2018-04-27 16:41 ` Christopher Lameter
2018-04-27 19:19 ` Mikulas Patocka
2018-06-13 17:01 ` Mikulas Patocka
2018-06-13 18:16 ` Christoph Hellwig
2018-06-13 18:53 ` Mikulas Patocka [this message]
2018-04-26 18:51 ` Christopher Lameter
2018-04-16 19:38 ` Vlastimil Babka
2018-04-16 19:38 ` Vlastimil Babka
2018-04-16 21:04 ` Mikulas Patocka
2018-04-16 21:04 ` Mikulas Patocka
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