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From: Hans Reiser <reiser@namesys.com>
To: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Ingo Oeser <ioe-lkml@rameria.de>,
	linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>,
	Marr <marr@flex.com>,
	reiserfs-dev@namesys.com
Subject: Re: Drastic Slowdown of 'fseek()' Calls From 2.4 to 2.6 -- VMM Change?
Date: Tue, 28 Feb 2006 10:42:09 -0800	[thread overview]
Message-ID: <44049981.6040503@namesys.com> (raw)
In-Reply-To: <44039A83.4050604@yahoo.com.au>

Nick Piggin wrote:

> Hans Reiser wrote:
>
>> Sounds like the real problem is that glibc is doing filesystem
>> optimizations without making them conditional on the filesystem type.
>
>
> I'm not sure that it should even be conditional on the filesystem type...
> To me it seems silly to even bother doing it, although I guess there
> is another level of buffering involved which might mean it makes more
> sense.
>
I was not saying that filesystem optimizations should be done in glibc
rather than in the kernel, I was merely forgoing judgement on that
point.   Actually, I rather doubt that they should be in glibc, but
maybe someday someone will come up with some legit example of where it
belongs in glibc.  I cannot think of one myself though.

  reply	other threads:[~2006-02-28 18:42 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-02-24 20:22 Drastic Slowdown of 'fseek()' Calls From 2.4 to 2.6 -- VMM Change? Marr
2006-02-25  5:16 ` Andrew Morton
2006-02-26 13:07   ` Ingo Oeser
2006-02-26 13:50     ` Nick Piggin
2006-02-26 14:11       ` Arjan van de Ven
2006-02-27 20:52       ` Hans Reiser
2006-02-28  0:34         ` Nick Piggin
2006-02-28 18:42           ` Hans Reiser [this message]
2006-02-28 18:51           ` Hans Reiser
2006-02-27 20:24   ` Marr
2006-02-27 21:53   ` Hans Reiser
2006-02-28  0:03     ` Bill Davidsen
2006-02-28 18:38       ` Hans Reiser
2006-03-05 23:02       ` Readahead value 128K? (was Re: Drastic Slowdown of 'fseek()' Calls From 2.4 to 2.6 -- VMM Change?) Linda Walsh
2006-03-07 19:53         ` Marr
2006-03-07 21:15           ` Linda Walsh
2006-03-12 21:53             ` Marr
2006-03-12 22:15               ` Mark Lord
2006-03-13  4:36                 ` Marr
2006-03-13 14:41                   ` Mark Lord
2006-03-13 18:15                     ` Hans Reiser
2006-03-13 20:00                     ` Marr
     [not found] <5JRJO-6Al-7@gated-at.bofh.it>
2006-02-24 23:31 ` Drastic Slowdown of 'fseek()' Calls From 2.4 to 2.6 -- VMM Change? Robert Hancock

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