From: Joe Perches <joe@perches.com>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Pekka J Enberg <penberg@cs.helsinki.fi>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Christoph Lameter <cl@linux-foundation.org>,
Matt Mackall <mpm@selenic.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-crypto@vger.kernel.org,
Herbert Xu <herbert@gondor.apana.org.au>,
Geert.Uytterhoeven@sonycom.com
Subject: Re: [PATCH] Export symbol ksize()
Date: Mon, 16 Feb 2009 08:32:32 -0800 [thread overview]
Message-ID: <1234801952.20430.33.camel@localhost> (raw)
In-Reply-To: <20090216135643.GA6927@cmpxchg.org>
On Mon, 2009-02-16 at 14:56 +0100, Johannes Weiner wrote:
> One problem is that zeroing ksize()
> bytes can have an overhead of nearly twice the actual allocation size.
A possible good thing is when linux has a
mechanism to use known zeroed memory in
kzalloc or kcalloc, it's already good to go.
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WARNING: multiple messages have this Message-ID (diff)
From: Joe Perches <joe@perches.com>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Pekka J Enberg <penberg@cs.helsinki.fi>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Christoph Lameter <cl@linux-foundation.org>,
Matt Mackall <mpm@selenic.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-crypto@vger.kernel.org,
Herbert Xu <herbert@gondor.apana.org.au>,
Geert.Uytterhoeven@sonycom.com
Subject: Re: [PATCH] Export symbol ksize()
Date: Mon, 16 Feb 2009 08:32:32 -0800 [thread overview]
Message-ID: <1234801952.20430.33.camel@localhost> (raw)
In-Reply-To: <20090216135643.GA6927@cmpxchg.org>
On Mon, 2009-02-16 at 14:56 +0100, Johannes Weiner wrote:
> One problem is that zeroing ksize()
> bytes can have an overhead of nearly twice the actual allocation size.
A possible good thing is when linux has a
mechanism to use known zeroed memory in
kzalloc or kcalloc, it's already good to go.
next prev parent reply other threads:[~2009-02-16 16:32 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-10 13:21 [PATCH] Export symbol ksize() Kirill A. Shutemov
2009-02-10 13:21 ` Kirill A. Shutemov
2009-02-10 13:35 ` Pekka Enberg
2009-02-10 13:35 ` Pekka Enberg
2009-02-10 13:46 ` Kirill A. Shutemov
2009-02-10 14:06 ` Pekka J Enberg
2009-02-10 14:06 ` Pekka J Enberg
2009-02-10 14:06 ` Pekka J Enberg
2009-02-12 10:43 ` Herbert Xu
2009-02-12 10:43 ` Herbert Xu
2009-02-12 10:45 ` Pekka Enberg
2009-02-12 10:45 ` Pekka Enberg
2009-02-12 10:50 ` Herbert Xu
2009-02-12 10:50 ` Herbert Xu
2009-02-12 13:10 ` Nick Piggin
2009-02-12 13:10 ` Nick Piggin
2009-02-12 23:09 ` Herbert Xu
2009-02-12 23:09 ` Herbert Xu
2009-02-12 23:37 ` Matt Mackall
2009-02-12 23:37 ` Matt Mackall
2009-02-13 13:20 ` Nick Piggin
2009-02-13 13:20 ` Nick Piggin
2009-02-13 16:57 ` Kyle Moffett
2009-02-13 16:57 ` Kyle Moffett
2009-02-12 15:55 ` Pekka Enberg
2009-02-12 15:55 ` Pekka Enberg
2009-02-12 23:09 ` Herbert Xu
2009-02-12 23:09 ` Herbert Xu
2009-02-15 21:36 ` Andrew Morton
2009-02-15 21:36 ` Andrew Morton
2009-02-15 21:43 ` Matt Mackall
2009-02-15 21:43 ` Matt Mackall
2009-02-15 21:55 ` Andrew Morton
2009-02-15 21:55 ` Andrew Morton
2009-02-15 23:49 ` Matt Mackall
2009-02-15 23:49 ` Matt Mackall
2009-02-16 1:00 ` Andrew Morton
2009-02-16 1:00 ` Andrew Morton
2009-02-16 1:21 ` Herbert Xu
2009-02-16 1:21 ` Herbert Xu
2009-02-16 1:28 ` Matt Mackall
2009-02-16 1:28 ` Matt Mackall
2009-02-16 1:52 ` Herbert Xu
2009-02-16 1:52 ` Herbert Xu
2009-02-16 1:54 ` Matt Mackall
2009-02-16 1:54 ` Matt Mackall
2009-02-16 1:57 ` Herbert Xu
2009-02-16 1:57 ` Herbert Xu
2009-02-16 1:38 ` Matt Mackall
2009-02-16 1:38 ` Matt Mackall
2009-02-17 8:43 ` Geert Uytterhoeven
2009-02-17 8:43 ` Geert Uytterhoeven
2009-02-17 8:43 ` Geert Uytterhoeven
2009-02-17 16:17 ` Christoph Lameter
2009-02-17 16:17 ` Christoph Lameter
2009-02-17 17:03 ` Pekka Enberg
2009-02-17 17:03 ` Pekka Enberg
2009-02-17 17:06 ` Christoph Lameter
2009-02-17 17:06 ` Christoph Lameter
2009-02-16 13:56 ` Johannes Weiner
2009-02-16 13:56 ` Johannes Weiner
2009-02-16 14:09 ` Pekka Enberg
2009-02-16 14:09 ` Pekka Enberg
2009-02-16 16:32 ` Joe Perches [this message]
2009-02-16 16:32 ` Joe Perches
2009-02-16 17:29 ` Pekka Enberg
2009-02-16 17:29 ` Pekka Enberg
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