From: Pekka Enberg <penberg@iki.fi>
To: Dave Hansen <dave@sr71.net>, Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Pravin B Shelar <pshelar@nicira.com>,
Christoph Lameter <cl@linux-foundation.org>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Andi Kleen <ak@linux.intel.com>,
Pekka Enberg <penberg@kernel.org>
Subject: Re: [RFC][PATCH 0/7] re-shrink 'struct page' when SLUB is on.
Date: Wed, 18 Dec 2013 10:51:48 +0200 [thread overview]
Message-ID: <52B16224.50006@iki.fi> (raw)
In-Reply-To: <52AF9EB9.7080606@sr71.net>
On 12/17/2013 02:45 AM, Dave Hansen wrote:
> I'll do some testing and see if I can coax out any delta from the
> optimization myself. Christoph went to a lot of trouble to put this
> together, so I assumed that he had a really good reason, although the
> changelogs don't really mention any.
IIRC it's commit 8a5ec0b ("Lockless (and preemptless) fastpaths for
slub") that documents the performance gains.
The page alignment patches came later once we discovered that we broke
the world...
Pekka
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prev parent reply other threads:[~2013-12-18 8:51 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-13 23:59 [RFC][PATCH 0/7] re-shrink 'struct page' when SLUB is on Dave Hansen
2013-12-13 23:59 ` [RFC][PATCH 1/7] mm: print more details for bad_page() Dave Hansen
2013-12-16 16:52 ` Christoph Lameter
2013-12-16 17:20 ` Andi Kleen
2013-12-13 23:59 ` [RFC][PATCH 2/7] mm: page->pfmemalloc only used by slab/skb Dave Hansen
2013-12-13 23:59 ` [RFC][PATCH 3/7] mm: slabs: reset page at free Dave Hansen
2013-12-13 23:59 ` [RFC][PATCH 4/7] mm: rearrange struct page Dave Hansen
2013-12-13 23:59 ` [RFC][PATCH 5/7] mm: slub: rearrange 'struct page' fields Dave Hansen
2013-12-13 23:59 ` [RFC][PATCH 6/7] mm: slub: remove 'struct page' alignment restrictions Dave Hansen
2013-12-14 3:13 ` Andi Kleen
2013-12-13 23:59 ` [RFC][PATCH 7/7] mm: slub: cleanups after code churn Dave Hansen
2013-12-17 0:01 ` [RFC][PATCH 0/7] re-shrink 'struct page' when SLUB is on Andrew Morton
2013-12-17 0:45 ` Dave Hansen
2013-12-17 15:17 ` Christoph Lameter
2013-12-19 0:24 ` Dave Hansen
2013-12-19 0:41 ` Andrew Morton
2013-12-19 0:48 ` Dave Hansen
2013-12-19 15:21 ` Christoph Lameter
2013-12-19 19:14 ` Dave Hansen
2013-12-18 8:51 ` Pekka Enberg [this message]
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