From: "Martin J. Bligh" <mbligh@mbligh.org>
To: Christoph Lameter <clameter@sgi.com>
Cc: "Pekka Enberg" <penberg@cs.helsinki.fi>,
"Linus Torvalds" <torvalds@osdl.org>,
"Daniel Hokka Zakrisson" <daniel@hozac.com>,
linux-kernel@vger.kernel.org,
"Björn Steinbrink" <B.Steinbrink@gmx.de>,
greg@kroah.com, matthew@wil.cx, manfred@colorfullife.com,
akpm@osdl.org, "Andy Whitcroft" <apw@shadowen.org>
Subject: Re: [PATCH] fs: fcntl_setlease defies lease_init assumptions
Date: Mon, 08 May 2006 23:16:20 -0700 [thread overview]
Message-ID: <446033B4.4070500@mbligh.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0605082230310.23795@schroedinger.engr.sgi.com>
Christoph Lameter wrote:
> On Mon, 8 May 2006, Martin J. Bligh wrote:
>
>
>>Can't you use sparsemem instead? It solves the same problem without the
>>magic faulting, doesn't it?
>
>
> But sparsemem has more complex table lookups. Ultimately IA64 will move
> to sparsemem (I think) but we are not there yet and we would like to be
> sure that there are no performance regressions with that move.
Please explain your concerns in more detail re complexity. I was under
the impression the design avoided that nicely by folding the
calculations together down into a single layer.
It's been around for a long time now ... has nobody tested the
performance on ia64 yet?
M.
next prev parent reply other threads:[~2006-05-09 6:16 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-07 23:21 [PATCH] fs: fcntl_setlease defies lease_init assumptions Daniel Hokka Zakrisson
2006-05-08 3:33 ` Linus Torvalds
2006-05-08 3:34 ` Linus Torvalds
2006-05-08 8:02 ` Daniel Hokka Zakrisson
2006-05-08 7:57 ` Daniel Hokka Zakrisson
2006-05-08 8:31 ` Pekka Enberg
2006-05-08 8:34 ` Pekka Enberg
2006-05-08 15:12 ` Linus Torvalds
2006-05-08 16:06 ` Pekka Enberg
2006-05-08 16:28 ` Linus Torvalds
2006-05-08 19:36 ` Pekka Enberg
2006-05-09 3:38 ` Christoph Lameter
2006-05-09 3:49 ` Martin J. Bligh
2006-05-09 5:31 ` Christoph Lameter
2006-05-09 6:16 ` Martin J. Bligh [this message]
2006-05-09 6:22 ` Manfred Spraul
2006-05-09 6:35 ` Keith Owens
2006-05-09 6:37 ` Nick Piggin
2006-05-09 10:26 ` Pekka J Enberg
2006-05-09 18:25 ` Manfred Spraul
2006-05-09 18:56 ` Linus Torvalds
2006-05-09 19:05 ` Pekka Enberg
2006-05-09 19:15 ` Pekka Enberg
2006-05-09 14:40 ` Linus Torvalds
2006-05-09 23:59 ` Christoph Lameter
2006-05-08 16:36 ` Dave Jones
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