From: Willy Tarreau <w@1wt.eu>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andi Kleen <andi@firstfloor.org>,
Jonathan Campbell <jon@nerdgrounds.com>,
linux-kernel@vger.kernel.org, torvalds@transmeta.com
Subject: Re: Patches for REALLY TINY 386 kernels
Date: Wed, 25 Jul 2007 00:45:17 +0200 [thread overview]
Message-ID: <20070724224515.GI943@1wt.eu> (raw)
In-Reply-To: <469E3806.4030804@zytor.com>
On Wed, Jul 18, 2007 at 08:55:50AM -0700, H. Peter Anvin wrote:
> Andi Kleen wrote:
> >
> >> Already with these patches I can compile a zImage kernel that is 450kb
> >> large (890kb decompressed)
> >
> > The important part is not how big the vmlinux is, but how much
> > memory is actually used after boot.
> >
> > I expect concentrating some of the dynamic data structures would
> > be more fruitful in fact.
> >
>
> Well, how big the vmlinux file is matters if it doesn't fit in memory
> with enough time to get to the phase where it is dumping the init
> sections. *If that is not the issue*, then axing stuff like CPUID is a
> major lose in terms of code maintainability for zero gain.
Not only that, but the size of the vmlinux matters when you have limited
flash memory to put it on. Having packaged single floppy-based firewalls
for a few years, I can assure you that even one kB sometimes matters!
> -hpa
Regards,
Willy
next prev parent reply other threads:[~2007-07-24 22:45 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-15 21:00 Patches for REALLY TINY 386 kernels Jonathan Campbell
2007-07-15 21:42 ` Nigel Cunningham
2007-07-15 22:45 ` Alan Cox
2007-07-15 23:12 ` Nigel Cunningham
2007-07-15 23:14 ` Satyam Sharma
2007-07-15 23:13 ` Arnd Bergmann
2007-07-15 23:28 ` Satyam Sharma
2007-07-15 23:05 ` Adrian Bunk
2007-07-15 23:08 ` H. Peter Anvin
2007-07-17 10:59 ` Jan Engelhardt
2007-07-17 19:30 ` Matt Mackall
2007-07-18 2:33 ` Andi Kleen
2007-07-18 15:55 ` H. Peter Anvin
2007-07-18 18:20 ` Andi Kleen
2007-07-18 18:29 ` Jan Engelhardt
2007-07-18 18:38 ` Andi Kleen
2007-07-18 18:45 ` Jan Engelhardt
2007-07-18 18:47 ` Andi Kleen
2007-07-18 20:24 ` John Stoffel
2007-07-18 18:33 ` Adrian Bunk
2007-07-18 18:42 ` Jan Engelhardt
2007-07-18 18:44 ` Andi Kleen
2007-07-18 19:00 ` H. Peter Anvin
2007-07-21 10:09 ` Oleg Verych
2007-07-18 19:41 ` Matt Mackall
2007-07-18 19:50 ` H. Peter Anvin
2007-07-18 20:10 ` Andi Kleen
2007-07-18 20:24 ` H. Peter Anvin
2007-07-18 21:04 ` Andi Kleen
2007-07-18 22:17 ` H. Peter Anvin
2007-07-30 17:59 ` Denis Vlasenko
2007-07-18 20:41 ` Matt Mackall
2007-07-20 7:27 ` Uwe Hermann
2007-07-20 7:35 ` Andi Kleen
2007-07-24 14:49 ` Helge Hafting
2007-07-24 20:50 ` Yinghai Lu
2007-07-24 22:56 ` Adrian Bunk
2007-07-25 0:55 ` Yinghai Lu
2007-07-24 22:45 ` Willy Tarreau [this message]
[not found] <8HjYY-4Jk-15@gated-at.bofh.it>
[not found] ` <8HlxM-7iT-13@gated-at.bofh.it>
[not found] ` <8HlxL-7iT-11@gated-at.bofh.it>
[not found] ` <8HlHq-7vR-17@gated-at.bofh.it>
[not found] ` <8HlHr-7vR-25@gated-at.bofh.it>
2007-07-16 13:12 ` Bodo Eggert
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