2008/11/21 The Rasterman Carsten Haitzler <[EMAIL PROTECTED]> > > XSync sends a request to x and waits for a reply - so your client app will > stop > and wait until x replies. x will reply once it has completed all existing > requests - that means the XCopeArea. while your app is waiting xglamo is > waiting for the gfx chip to do the work - and likely its sitting in a loop > polling checking when the command is done. >
Thanks Raster, now things are becoming clear :) The glamo chip should raise an interrupt when the command is done, a specialized kernel module should export this interrupt to the userspace so Xglamo may suspend waiting for this interrupt without wasting cpu cycles! I suppose that this should be quite easy and cheap for Openmoko developers, may it be considered? This will really improve the device performance! Regards Nicola
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