On Thu, Sep 14, 2000 at 05:09:24PM +0100, Derek Cassidy wrote:
> Anyone know roughly what the bootup time for RTLinux is or other RTOS's
> are.
>
> is there a list of boot up time comparisons anywhere on the web?
> I am developing an embedded system but havent decided on which
> RTOS to use and need to compare bootup times...
> need a system that will startup quick..
For RTLinux, it shouldn't be (and in my experience isn't) too much
different from the bootup time of unpatched Linux. The loading of the modules
after bootup is really what takes a humanly noticeable amount of time.
Really, it depends a lot on the hardware you use and drivers you
select as modules. Making more drivers as modules (or leaving them out
altogether) will result in faster bootup speeds, but then they will take
noticeable time when you load them later.
i usually make my kernels as modular as possible, and at one point in
time, it took roughly 45 seconds to go from LILO prompt to XDM login prompt.
This, of course, didn't count the time it took to load the RTL or SCSI modules
(for my CD-ROM drive). This is also on a PPro 180 with a slow IDE hard drive.
--
Nathan Paul Simons, Programmer for FSMLabs
http://www.fsmlabs.com/
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