Messages in this thread |  | | Date | Sat, 3 Feb 2001 13:55:18 +0100 | From | Pavel Machek <> | Subject | Re: Disk is cheap? |
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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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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