On Tue, Dec 18, 2001 at 03:07:29PM +0100, Andre Werthmann wrote: > I have a laptop with a SiS630 chipset and use XFree86 4.1 (sis driver with > the vesafb hack). > When I play a dvd in windowed mode (720x576) with xine and I use XVideo > the cpu(1.1Ghz P3) is utilized at 66% while playing with XShm the cpu is > utilized only at 31% ! > (the same with mplayer) > > This effect is the same at all colordepths (16bpp and 24bpp). > > I thought Xv should take the strain off the cpu a bit... > > > Anyone has an idea what may cause the problem ? It is because the driver uses memcpy for transferring of the data. The correct way to solve this is to add dma support. In current cvs XF86 r128 does this so it can be used as a reference implementation.
> Thanks,
> -Andre.
Bye,
Peter Surda (Shurdeek) <[EMAIL PROTECTED]>, ICQ 10236103, +436505122023
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