[U-Boot] RE : Reduce time to load

[POLETTE Simon <spolette@adetelgroup.com>]

U-boot take about 2 seconds to load the kernel.
The rest of the system take about 10 seconds until I get the prompt, so it represents ~16% of total time needed to have an operational system.
I agree to say that most of the work to reduce boot time have to be done on the kernel and userspace, but I'm trying to save as much time as possible, even if it's 100ms.
Thanks a lot for your help.

Best regards,

Simon Polette



-------- Message d'origine--------
De: Wolfgang Denk [mailto:wd at denx.de]
Date: jeu. 26/02/2009 12:36
?: POLETTE Simon
Cc: u-boot at lists.denx.de
Objet : Re: [U-Boot] (no subject)
 
Dear "POLETTE Simon",

In message <51D9710FF5643747BB605F97B8DE56CD0231C16C@STEGOSAURE.adetel.com> you wrote:
> 
> I'm searching ways to get embedded Linux boot as fast as possible.
> I'm working mainly on the kernel, but I have also to search means to
> optimize the bootloader.
> so I'm looking for some leads that could make u-boot load the kernel
> faster.

How much time does U-Boot need on your system to load the kernel?

And much is this compared to al the other times needed to boot your
system (in percent) ?

Best regards,

Wolfgang Denk

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