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Message-ID: <3f250c71050301063228f3507e@mail.gmail.com>
Date: Tue, 1 Mar 2005 10:32:45 -0400
From: Mauricio Lin <mauriciolin@gmail.com>
Reply-To: Mauricio Lin <mauriciolin@gmail.com>
To: Albert Cahalan <albert@users.sf.net>
Subject: Re: [PATCH] A new entry for /proc
Cc: linux-kernel mailing list <linux-kernel@vger.kernel.org>,
       Andrew Morton OSDL <akpm@osdl.org>
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Hi,
 
> The most important thing about a /proc file format is that it has
> a documented means of being extended in the future. Without such
> documentation, it is impossible to write a reliable parser.
> 
> The "Name: value" stuff is rather slow. Right now procps (ps, top, etc.)
> is using a perfect hash function to parse the /proc/*/status files.
> ("man gperf") This is just plain gross, but needed for decent performance.

So, change the output format is important, right?
 
> Extending the /proc/*/maps file might be possible. It is commonly used
> by debuggers I think, so you'd better at least verify that gdb is OK.
> The procps "pmap" tool uses it too. To satisfy the procps parser:
> 
> a. no more than 31 flags
> b. no '/' prior to the filename
> c. nothing after the filename
> d. no new fields inserted prior to the inode number
> 

Yes, probably smaps is more feasible for tracking environment. Do you
know any public kernel (I mean kernel version for tracking and
debugging)  where can I post the smaps PATCH in order to be included?

BR,

Mauricio Lin.
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