From: Christoph Lameter <cl@linux.com>
To: Vladimir Davydov <vdavydov@parallels.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Pekka Enberg <penberg@kernel.org>,
David Rientjes <rientjes@google.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@suse.cz>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH -mm v2 1/3] slub: never fail to shrink cache
Date: Thu, 29 Jan 2015 10:22:16 -0600 (CST) [thread overview]
Message-ID: <alpine.DEB.2.11.1501291021370.7986@gentwo.org> (raw)
In-Reply-To: <20150129161739.GE11463@esperanza>
On Thu, 29 Jan 2015, Vladimir Davydov wrote:
> Yeah, but the tool just writes 1 to /sys/kernel/slab/cache/shrink, i.e.
> invokes shrink_store(), and I don't propose to remove slab placement
> optimization from there. What I propose is to move slab placement
> optimization from kmem_cache_shrink() to shrink_store(), because other
> users of kmem_cache_shrink() don't seem to need it at all - they just
> want to release empty slabs. Such a change wouldn't affect the behavior
> of `slabinfo -s` at all.
Well we have to go through the chain of partial slabs anyways so its easy
to do the optimization at that point.
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next prev parent reply other threads:[~2015-01-29 16:22 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-28 16:22 [PATCH -mm v2 0/3] slub: make dead caches discard free slabs immediately Vladimir Davydov
2015-01-28 16:22 ` [PATCH -mm v2 1/3] slub: never fail to shrink cache Vladimir Davydov
2015-01-28 16:31 ` Christoph Lameter
2015-01-28 18:29 ` Pekka Enberg
2015-01-28 16:37 ` Christoph Lameter
2015-01-28 17:32 ` Vladimir Davydov
2015-01-28 19:20 ` Christoph Lameter
2015-01-28 21:57 ` Andrew Morton
2015-01-28 22:56 ` Christoph Lameter
2015-01-29 8:07 ` Vladimir Davydov
2015-01-29 15:55 ` Christoph Lameter
2015-01-29 16:17 ` Vladimir Davydov
2015-01-29 16:22 ` Christoph Lameter [this message]
2015-01-29 18:21 ` Vladimir Davydov
2015-01-29 19:10 ` Christoph Lameter
2015-01-29 8:32 ` Balbir Singh
2015-02-15 3:55 ` Sasha Levin
2015-02-15 9:47 ` Vladimir Davydov
2015-01-28 16:22 ` [PATCH -mm v2 2/3] slub: fix kmem_cache_shrink return value Vladimir Davydov
2015-01-28 16:33 ` Christoph Lameter
2015-01-28 17:46 ` Vladimir Davydov
2015-01-28 19:19 ` Christoph Lameter
2015-01-28 16:22 ` [PATCH -mm v2 3/3] slub: make dead caches discard free slabs immediately Vladimir Davydov
2016-04-01 9:04 ` Peter Zijlstra
2016-04-01 10:55 ` Vladimir Davydov
2016-04-01 11:41 ` Peter Zijlstra
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