From: Pavel Machek <pavel@suse.cz>
To: Robert Kaiser <rob@sysgo.de>, Patrizio Bruno <patrizio@dada.it>,
linux-kernel@vger.kernel.org
Subject: Re: Disk is cheap?
Date: Sat, 3 Feb 2001 13:55:18 +0100 [thread overview]
Message-ID: <20010203135518.A1203@bug.ucw.cz> (raw)
In-Reply-To: <01013114393200.01502@rob> <Pine.LNX.4.10.10101311550150.3588-100000@blacksheep.at.dada.it> <200101311612.RAA02360@rob.devdep.sysgo.de>
In-Reply-To: <200101311612.RAA02360@rob.devdep.sysgo.de>; from Robert Kaiser on Wed, Jan 31, 2001 at 05:12:47PM +0100
Hi!
> > I built a embedded dvd/cdda/mp3 player based on linux, using a p200mmx
> > with 24mb with a bus of 75mhx, but it still takes about 20 seconds to boot,
> > I think that an embedded device (for home use) should boot in less than
> > 5 seconds, how could be possible with a slow p133? (I've also tried a p133
> > on 66mhz of bus and it takes almost 35 seconds to boot)
>
> Usually most of the startup time is spent by the BIOS doing
> extensive self-test stuff and for firing up services (http,
> inetd, sendmail, ...) that many embedded systems have little use
> for.
Actually, most of that time is spent running bash/sleep 1. Startup
scripts tend to be poorly designed.
> I have a 25MHz 386EX (~2.2 Bogomips) here that boots Linux out of ROM
> in roughly 30 seconds. Most of _that_ time however is spent decompressing
> the kernel.
You might want to set up XIP and run kernel directly off the ROM...
Pavel
--
I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care."
Panos Katsaloulis describing me w.r.t. patents at discuss@linmodems.org
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next prev parent reply other threads:[~2001-02-06 14:42 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-31 13:29 Disk is cheap? Robert Kaiser
2001-01-31 14:55 ` Patrizio Bruno
2001-01-31 16:12 ` Robert Kaiser
2001-02-01 12:34 ` Wojtek Pilorz
2001-02-03 12:55 ` Pavel Machek [this message]
2001-02-06 14:49 ` Robert Kaiser
2001-02-06 15:28 ` Hacksaw
2001-02-06 15:30 ` Robert Kaiser
2001-02-06 20:17 ` John Fremlin
2001-02-24 13:59 ` Ralf Baechle
2001-02-26 11:32 ` Robert Kaiser
-- strict thread matches above, loose matches on Subject: below --
2001-01-30 18:58 mirabilos
2001-01-31 3:27 ` John R Lenton
2001-02-02 14:48 ` Pavel Machek
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