On Wed, Nov 06, 2013 at 10:32:01PM +0000, Luke Kenneth Casson Leighton wrote: > On Wed, Nov 6, 2013 at 7:08 PM, Mikhail Ramendik <[email protected]> wrote: > > >> yeees, that CPU Card runs debian. first thing i installed when i got it :) > > > > Cool. But I guess the A10 GPU (Mali400) is pretty basic compared to > > the aforementioned PowerVR? > > we're using the A20 which is dual-core, but yes it is. part of the > issue there is that the moron in charge of MALI at ARM - the one who > thinks he's god - doesn't actually know what he's talking about, and > hasn't bothered to do any software optimisation of the parts of the > MALI libraries that run on the actual ARM cores. > > luc verbeghen did a _really_ simple memory-management system in > limadriver and got a *whopping* 30% performance increase *above* what > MALI can do on the exact same hardware. and that's *without* having > done any other special kinds of optimisations.
I am not sure who luc verbeghen is, or where he found this 30% increase. But luc verhaegen got 6%, and he expects another 50% over the X11 binary by integrating the display engine correctly. The ~6% over the framebuffer binary stands as is, which is mostly down to lesser memory management overhead (due to smarter handling of throw-away memory), general lesser cpu overhead, and slightly more aggressive scheduling. The big news is: lima seems to be, in the very general case, as fast as the binary (and measurably, but not earthshatteringly faster). And i do not think that anyone in the graphics world can currently approach that. Luc Verhaegen. -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
