kernel executing from flash

[Graham Stoney]

> > For our (non-linux) embedded systems, if we're going to run from
> > flash, we store the executable in flash uncompressed.  Price is an
> > issue which favors RAM, but speed issues no longer favor RAM - the new
> > intel burst flash is faster than RAM in one of our systems.

Rob Taylor writes:
>
> isn't it only faster for burst reads tho? that sort of speed increase
> doesn't really help when running code..

I think you might be mistaken here. Code accesses tend to be very linear, and
since the Instruction cache loads entire lines at a time, burst accesses are a
big win for code.

Regards,
Graham

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