From: Geert U. <ge...@li...> - 2004-04-21 08:28:27
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On Wed, 21 Apr 2004, Benjamin Herrenschmidt wrote: > > I find that a soft copyarea is always expensive than a soft imageblit as a > > copyarea will involve an fb read (10-20x slower than fb write). Tested > > this before with an old pci nvidia card. Not o sure with newer hardware. > > I confirm, reading from the fb shall be avoided at all cost This is true for PCI/AGP, but may not be true for unified memory systems. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@li... In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds |