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Date: Sun, 4 Nov 2001 18:42:57 -0500 (EST)
From: Alexander Viro <viro@math.psu.edu>
To: Daniel Phillips <phillips@bonn-fries.net>
cc: Jakob =?koi8-r?q?=3Fstergaard?= <jakob@unthought.net>,
        Alex Bligh - linux-kernel <linux-kernel@alex.org.uk>,
        John Levon <moz@compsoc.man.ac.uk>, linux-kernel@vger.kernel.org,
        Tim Jansen <tim@tjansen.de>
Subject: Re: PROPOSAL: dot-proc interface [was: /proc stuff]
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On Sun, 4 Nov 2001, Daniel Phillips wrote:

> Doing 'top -d .1' eats 18% of a 1GHz cpu, which is abominable.  A kernel
> profile courtesy of sgi's kernprof shows that scanning pages does not move
> the needle, whereas sprintf does.  Notice that the biggest chunk of time

Huh?  Scanning pages is statm_pgd_range().  I'd say that it takes
seriously more than vsnprintf() - look at your own results.

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