[uClinux-dev] Re: realtime scheduling...

Erik Andersen andersen at codepoet.org
Mon Mar 17 01:28:13 EST 2003


On Mon Mar 17, 2003 at 10:41:15AM +0900, Miles Bader wrote:
> Someone posted to the LKML about an interesting RT technique they're using
> for linux, which is to basically have all interrupts go to an underlying
> super-nano-pico-thing who's job is basically only to distribute interrupts,
> using a priority-sorted queue of willing interrupt handlees.  The kernel's
> low-level interrupt ops (sti, cli, etc) are replaced by equivalent `put the
> kernel in the interrupt queue' and `remove the kernel from the interrupt
> queue' calls to the super-nano-pico-thing [or perhaps they just toggle a
> bit somewhere so they're fast].

I believe you are thinking of Adeos:
    http://www.nongnu.org/adeos/

as originally described by Karim Yaghmour here:
    http://www.opersys.com/ftp/pub/Adeos/adeos.pdf

 -Erik

--
Erik B. Andersen             http://codepoet-consulting.com/
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