Messages in this thread | | | Date | Thu, 1 Feb 2001 13:34:08 +0100 (CET) | From | Wojtek Pilorz <> | Subject | Re: Disk is cheap? |
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On Wed, 31 Jan 2001, Robert Kaiser wrote:
> Date: Wed, 31 Jan 2001 17:12:47 +0100 > From: Robert Kaiser <rob@sysgo.de> > To: Patrizio Bruno <patrizio@dada.it>, linux-kernel@vger.kernel.org > Subject: Re: Disk is cheap? > > In article <Pine.LNX.4.10.10101311550150.3588-100000@blacksheep.at.dada.it>, > patrizio@dada.it (Patrizio Bruno) writes: > > 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. > > 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. > [...] If someone would modify kernel to allow LZO compression then the decompression would be 3 times faster at the expense of compressed part of the image being 9..10% larger (assuming LZO1X-999/9 method used by lzop -9) (I have done decompression speed tests on Pentium MMX 166 MHz)
Best regards,
Wojtek -------------------- Wojtek Pilorz Wojtek.Pilorz@bdk.pl
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