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From: Denys Vlasenko <vda.linux@googlemail.com>
To: =?utf-8?q?J=C3=B6rn_Engel?= <joern@logfs.org>
Subject: Re: x86: 4kstacks default
Date: Mon, 28 Apr 2008 01:02:01 +0200
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Cc: David Chinner <dgc@sgi.com>, Eric Sandeen <sandeen@sandeen.net>,
       Adrian Bunk <bunk@kernel.org>, Alan Cox <alan@lxorguk.ukuu.org.uk>,
       Shawn Bohrer <shawn.bohrer@gmail.com>, Ingo Molnar <mingo@elte.hu>,
       Andrew Morton <akpm@linux-foundation.org>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Arjan van de Ven <arjan@infradead.org>,
       Thomas Gleixner <tglx@linutronix.de>
References: <20080419142329.GA5339@elte.hu> <20080422012819.GT108924158@sgi.com> <20080427192736.GA21979@logfs.org>
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On Sunday 27 April 2008 21:27, Jörn Engel wrote:
> On Tue, 22 April 2008 11:28:19 +1000, David Chinner wrote:
> > On Mon, Apr 21, 2008 at 09:51:02PM +0200, Denys Vlasenko wrote:
> > 
> > > Why xfs code is said to be 5 times bigger than e.g. reiserfs?
> > > Does it have to be that big?
> > 
> > If we cut the bulkstat code out, the handle interface, the
> > preallocation, the journalled quota, the delayed allocation, all the
> > runtime validation, the shutdown code, the debug code, the tracing
> > code, etc, then we might get down to the same size reiser....
> 
> Just noticed this bit of FUD. Last time I did some static analysis on
> stack usage, reiserfs alone would blow away 3k, while xfs was somewhere
> below.

I'm sorry, but it's not what I said.
I didn't say reiserfs eats less stack. I don't know.
I said it is smaller.

reiserfs/*  821474 bytes
xfs/*      3019689 bytes
--
vda