https://bugzilla.kernel.org/show_bug.cgi?id=33512 Summary: radeon: lots of time spent in atombios_crtc_disable Product: Drivers Version: 2.5 Kernel Version: 2.6.39-rc3 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) AssignedTo: drivers_video-dri@xxxxxxxxxxxxxxxxxxxx ReportedBy: edwintorok@xxxxxxxxx Regression: No Created an attachment (id=54532) --> (https://bugzilla.kernel.org/attachment.cgi?id=54532) dmesg On a mostly idle system this is what I see with perf top (after exiting a game): --------------------------------------------------------------------------- PerfTop: 386 irqs/sec kernel:72.8% exact: 0.0% [1000Hz cycles], (all, 6 CPUs) --------------------------------------------------------------------------- samples pcnt function DSO _______ _____ ______________________________ 171.00 18.0% atombios_crtc_disable /lib/modules/2.6.39-rc3-phenom-00117-ge38f5b7/kernel/drivers/gpu/drm/radeon/radeon.ko 47.00 4.9% find_next_bit [kernel.kallsyms] 31.00 3.3% format_decode [kernel.kallsyms] When playing a game that function is still on top, albeit with a lower percentage (7.5%). If the function does what its name says then it should be called at most once, when switching modes, entering standby, etc. I don't see why it is being called during normal operation, and why is it called so many times that it makes it the top function using the CPU... The graphics in games is quite laggy too, maybe because of this... My dmesg is attached. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. ------------------------------------------------------------------------------ Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev -- _______________________________________________ Dri-devel mailing list Dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
