From: Andi Kleen <ak@linux.intel.com>
To: Dave Hansen <dave@sr71.net>
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>
Subject: Re: [RFC][PATCH 6/7] mm: slub: remove 'struct page' alignment restrictions
Date: Fri, 13 Dec 2013 19:13:56 -0800 [thread overview]
Message-ID: <20131214031356.GS22695@tassilo.jf.intel.com> (raw)
In-Reply-To: <20131213235911.79AA177D@viggo.jf.intel.com>
> helps performance, presumably because of that 14% fewer
> cacheline effect. A 30GB dd to a ramfs file:
>
> dd if=/dev/zero of=bigfile bs=$((1<<30)) count=30
>
> is sped up by about 4.4% in my testing.
Impressive result!
-Andi
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next prev parent reply other threads:[~2013-12-14 3:14 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 [this message]
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
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