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Date: Wed, 19 Jun 2002 15:06:06 -0700 (PDT)
Message-Id: <20020619.150606.127425775.davem@redhat.com>
To: davidm@hpl.hp.com, davidm@napali.hpl.hp.com
Cc: torvalds@transmeta.com, aebr@win.tue.nl, phillips@bonn-fries.net,
       Andries.Brouwer@cwi.nl, viro@math.psu.edu, linux-kernel@vger.kernel.org
Subject: Re: [PATCH+discussion] symlink recursion
From: "David S. Miller" <davem@redhat.com>
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   From: David Mosberger <davidm@napali.hpl.hp.com>
   Date: Wed, 19 Jun 2002 12:14:01 -0700
   
   on ia-64, I see the following (2.4.18, with gcc3.1):
   
   	- ext2_follow_link():	 16 bytes/frame
   	- vfs_follow_link():	 56 bytes/frame
   	- link_path_walk():	128 bytes/frame
   	---------------------	---------------
   	total:			200 bytes/frame
   
   Just about in line with what you'd expect given that registers are
   64 bits.

On sparc64 the situation is much worse (due to register windows)
which means any non-leaf function (function which invokes no nother
functions) equals 192 bytes of stack space per frame minimum.

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