From: Andrea Arcangeli <andrea@suse.de>
To: Dave Jones <davej@suse.de>, Bill Davidsen <davidsen@tmr.com>,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: 2.4.19pre3aa2
Date: Thu, 14 Mar 2002 17:32:12 +0100 [thread overview]
Message-ID: <20020314173212.K22054@dualathlon.random> (raw)
In-Reply-To: <20020314133223.B19636@suse.de> <Pine.LNX.3.96.1020314104230.9248A-100000@gatekeeper.tmr.com> <20020314171259.I22054@dualathlon.random> <20020314171620.I19636@suse.de>
In-Reply-To: <20020314171620.I19636@suse.de>
On Thu, Mar 14, 2002 at 05:16:20PM +0100, Dave Jones wrote:
> On Thu, Mar 14, 2002 at 05:12:59PM +0100, Andrea Arcangeli wrote:
> > Correct. I think the CONFIG option isn't worthwhile in the first place
> > and this is why I only left the CONFIG_M686 knowing most smp kernels are
> > compiled that way. 4096bytes of virtual vmallc space and some houndred
> > bytes of bytecode doesn't worth the config option. If something the
> > CONFIG_F00F would be more a documentation effort 8).
>
> nononono! CONFIG_FOOF is a derived symbol from whatever CONFIG_Mx8x
> is set. Much in the way we derive CONFIG_X86_WP_WORKS_OK, CONFIG_X86_PPRO_FENCE
> and freinds..
Of course I perfectly understood what you meant. I designed the current
way of doing the CONFIG_X86 some years back so I know what you mean.
Just re-read the previous email with that in mind. What I meant is that
4096bytes of virtual vmalloc space doesn't worth a CONFIG_F00F IMHO.
While CONFIG_F00F isn't wasted user time because the user won't see it,
it still clobbers the source code, but nevertheless it is better than
the current halfway broken #ifdef CONFIG_M686 and that's why I said if
somebody bothers to verymicrooptimize I'm ok, I just won't microoptimize
myself and I'd drop CONFIG_M686 instead.
Andrea
next prev parent reply other threads:[~2002-03-14 16:32 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-14 2:28 2.4.19pre3aa2 Andrea Arcangeli
2002-03-14 12:32 ` 2.4.19pre3aa2 Dave Jones
2002-03-14 12:37 ` 2.4.19pre3aa2 Andrea Arcangeli
2002-03-14 12:46 ` 2.4.19pre3aa2 Jeff Garzik
2002-03-14 12:59 ` 2.4.19pre3aa2 Dave Jones
2002-03-14 15:53 ` 2.4.19pre3aa2 Bill Davidsen
2002-03-14 16:12 ` 2.4.19pre3aa2 Andrea Arcangeli
2002-03-14 16:16 ` 2.4.19pre3aa2 Dave Jones
2002-03-14 16:32 ` Andrea Arcangeli [this message]
2002-03-16 1:26 ` 2.4.19pre3aa2 Mike Fedyk
2002-03-14 16:13 ` 2.4.19pre3aa2 Dave Jones
2002-03-14 17:16 ` 2.4.19pre3aa2 Bill Davidsen
2002-03-14 21:16 ` 2.4.19pre3aa2 H. Peter Anvin
2002-03-14 18:00 ` 2.4.19pre3aa2 Andrew Morton
2002-03-14 22:57 ` 2.4.19pre3aa2 Jari Ruusu
2002-03-15 10:56 ` 2.4.19pre3aa2 Jens Axboe
2002-03-15 11:06 ` 2.4.19pre3aa2 Jens Axboe
2002-03-15 17:35 ` 2.4.19pre3aa2 Jari Ruusu
2002-03-15 17:57 ` 2.4.19pre3aa2 Andrea Arcangeli
2002-03-16 12:10 ` 2.4.19pre3aa2 Jari Ruusu
2002-03-16 13:54 ` 2.4.19pre3aa2 Andrea Arcangeli
2002-03-18 19:13 ` 2.4.19pre3aa2 Jens Axboe
2002-03-19 23:26 ` 2.4.19pre3aa2 Jari Ruusu
2002-03-20 7:54 ` 2.4.19pre3aa2 Jens Axboe
2002-03-20 18:16 ` 2.4.19pre3aa2 Jari Ruusu
2002-03-20 14:21 ` 2.4.19pre3aa2 Herbert Valerio Riedel
2002-03-15 12:19 ` 2.4.19pre3aa2 Herbert Valerio Riedel
2002-03-15 17:36 ` 2.4.19pre3aa2 Jari Ruusu
2002-03-15 18:36 ` 2.4.19pre3aa2 Herbert Valerio Riedel
2002-03-16 12:12 ` 2.4.19pre3aa2 Jari Ruusu
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