How big is RTEMS?

Jonathan Kalbfeld jonathan.kalbfeld at
Mon Feb 26 18:28:48 UTC 2007

Depending on how you are going to be launching the kernel and if your
bootloader can deal with compressed images, you can probably get it
down to a few hundred k.

I have a hello world that is about 93k compressed, but that is for
i386, and we know that CISC code is usually more compact.


On 2/26/07, Michael Silva <mjsilva at> wrote:
> Pardon me for asking such a basic question, but I couldn't find any
> data on the RTEMS site.  I think RTEMS may be just the OS I'm looking
> for but I'd like to get some idea of its memory requirements.  Is
> there any sort of matrix listing code size for various
> configurations, from a bare-bones tasking kernel on up?  My
> particular focus is ARM7 at the moment, and I want to get an idea how
> small/cheap I can go in that family.  Thanks.
> _______________________________________________
> rtems-users mailing list
> rtems-users at

Jonathan Kalbfeld
+1 323 620 6682

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