Viable PPC platform?

Wolfgang Denk wd at denx.de
Tue May 23 08:15:56 EST 2006


In message <1148334674.10288.30.camel at shinybook.infradead.org> you wrote:
>
> Out of interest, how old is that JFFS2 test? If it's with the ancient
> code in the 2.4 kernel, you'll get a _lot_ of improvement by using the
> 2.6 kernel.

This was on a MPC860 system running a 2.4.25 kernel tree with  a  MTD
snapshot of Spring 2005.

> It looks like it took about 13 seconds to mount the onboard 8MiB flash.
> I can mount 512MiB of flash in 7.9 seconds with the current kernel, with
> a 400MHz AMD Geode.

The file system size was actually only 4 MiB.

But then, a 400 MHz Geode is a bit faster than a 50 MHz 8xx, probably
not only in terms of CPU performance but  also  in  terms  of  memory
bandwidth.

> There's more work going on right now to reduce the memory usage too.

Fine, thanks!

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Make it right before you make it faster.



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