Hello Jason and thank you very much for your response,
To be honest, I did not expect such many services to be initialized at
booting time, just my Webcam driver and the udev system. So I could run
my script to capture video, images, etc, located at the SD card.
But the problem as you said is that I need the SD card to be mounted and
that takes some time.
Thanks for the expert insight,
Magda
--- In Jason Stahls <> wrote:
>
> wrote:
> > After spending lots of time on the ts-7800.. I think, what embedded support
> > means about "booting time" is the time that it takes to load the kernel
> > image, that DOES NOT include a lot of initialization processes..
> >
> > So being able to do something meaningful with the ts-7800 board will take
> > much more that 0.68 secs. I would say that at least 10 secs are needed for
> > having for example the SD card mounted and to execute things like your own
> > init scripts..etc.
> >
> > This is very disappointing.. and not clear when they advertise the ts-7800
> > board. If someone has any ideas on how to reduce this booting time please
> > let us know.
> >
> > I hope this post would be useful for people to find out about the real
> > ts-7800 capabilities.
>
> If you honestly expect any device with a OS as intricate as Linux to
> totally boot with printing, file sharing, wireless, or whatever in less
> then 10 seconds then I think you'd better re-examine your plan. My
> cable box takes almost 5 seconds to boot and I highly doubt it's running
> any kind of OS. Heck, I've built systems based on Microchip PIC's that
> can take upwards of ten seconds to become "fully functional" just due to
> the initialization and settling time of the other devices on the board.
>
> Now, I don't have a TS7800, but I would assume that their 0.68 second
> time is to load the fastboot kernel and environment, not a full debian
> system. From fastboot you could load your application, I do have a
> TS7200 and the application it runs will load in either TS-Linux or
> Debian with TS-Linux being far faster then Debian since the debian
> install is totally loaded from CF. Debian is booted for making changes
> in the field for me (it was installed a good 1000-1500km from the shop
> in the middle of nowhere) with normal operation booting from flash.
> Flash bootup, about 5-6 seconds minus my application init, debian is
> closer to 15-20 seconds.
>
> So I guess what I'm getting at is please don't exepect to load a system
> from SD and have it boot in .68 seconds :) It's just not practical, not
> even for a modern dual-core desktop let alone a embedded device. If you
> really find you need to run from SD then make sure you disable
> _everything_ you don't need. Also recompile your kernel removing any
> extras you're not using and remove or don't insert modules you're not using.
>
> --
> Jason Stahls
>
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