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Re: Latest sources from CVS.

To: Ralf Baechle <ralf@linux-mips.org>
Subject: Re: Latest sources from CVS.
From: Dominic Sweetman <dom@algor.co.uk>
Date: Fri, 6 Dec 2002 18:18:22 +0000
Cc: Thiemo Seufer <ica2_ts@csv.ica.uni-stuttgart.de>, "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>, Carsten Langgaard <carstenl@mips.com>, "Kevin D. Kissell" <kevink@mips.com>, linux-mips@linux-mips.org
In-reply-to: <20021206180241.A7492@linux-mips.org>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20021206135110.GD23743@rembrandt.csv.ica.uni-stuttgart.de> <Pine.GSO.3.96.1021206165118.26674N-100000@delta.ds2.pg.gda.pl> <20021206164558.GH23743@rembrandt.csv.ica.uni-stuttgart.de> <20021206180241.A7492@linux-mips.org>
Sender: linux-mips-bounce@linux-mips.org
Ralf Baechle (ralf@linux-mips.org) writes:

> Absolutely:
> 
> [ralf@dea linux-sgi-2.4]$ mips64-linux-size vmlinux
>    text    data     bss     dec     hex filename
> 1978296  317344  156224 2451864  256998 vmlinux
> [ralf@dea linux-sgi-2.4]$ mips64-linux-size vmlinux
>    text    data     bss     dec     hex filename
> 1761168  317344  156224 2234736  221970 vmlinux
> 
> The first kernel was built as 64-bit ELF using 64-bit pointer and everything
> 64-bit.  The second kernel was built using the -Wa,-32 trick.  That's over
> 12% of bloat for full 64-bitiness which brings zero gain.

Percentages are dangerous things.  This is 220Kbytes of memory, which
currently represents an investment of about $0.05.  There may be
embedded linux applications which care about 5c cost, but they
probably won't use any variety of 64 bits...


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