On Tue, 15 Jul 2008 20:45:25 -0300 Werner Almesberger <[EMAIL PROTECTED]> babbled:
> Carsten Haitzler wrote: > > if we have a 2442 with a dumb framebuffer i'd get 13fps. > > Does this take into account the memory bandwidth taken up by the screen > refresh ? If not, it would even be less than 13fps :-( aah indeed no it doesn't, but i'd drop that from 13 to 11-12fps then if my calculations are right. :) > If you want to test this, I think you could just set up the 2442's LCD > controller and let it pump out data into nothingness. As long as the > GPIOs aren't reconfigured, the LCD controller sending data to them > shouldn't matter. You don't even need a kernel change - you could write > the registers directly from user space, using mmap. See also > http://svn.openmoko.org/trunk/src/target/gpio/gpio.c > > I think this would be a very interesting test, giving us a precise > indication what performance we could expect when we remove the Glamo. > > - Werner -- Carsten Haitzler (The Rasterman) <[EMAIL PROTECTED]>
