http://bugzilla.kernel.org/show_bug.cgi?id=15328
--- Comment #3 from Thomas Hellstrom <thellst...@vmware.com> 2010-02-16 21:24:27 --- Really, The Radeon driver *should* never change caching policy from WC to UC, and thus never hit the code path affected by that patch. However if it does, and particularly if it does frequently it's quite natural that the patch causes severe CPU overhead since transition from WC->WB->UC causes a cache flush whereas WC->UC doesn't. Maybe Jerome has some input? -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. ------------------------------------------------------------------------------ SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW http://p.sf.net/sfu/solaris-dev2dev -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
