On Saturday 21 April 2007 18:00, Ingo Molnar wrote: > correct. Note that Willy reniced X back to 0 so it had no relevance on > his test. Also note that i pointed this change out in the -v4 CFS > announcement: > > || Changes since -v3: > || > || - usability fix: automatic renicing of kernel threads such as > || keventd, OOM tasks and tasks doing privileged hardware access > || (such as Xorg). > > i've attached it below in a standalone form, feel free to put it into > SD! :)
But X problems have nothing to do with "privileged hardware access". X problems are related to priority inversions between server and client processes, and "one server process - many client processes" case. I think syncronous nature of Xlib (clients cannot fire-and-forget their commands to X server, with Xlib each command waits for ACK from server) also add some amount of pain. -- vda - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
