On Mon, May 30, 2016 at 12:27:46PM +0200, Peter Zijlstra wrote: > On Mon, May 30, 2016 at 11:43:31AM +0200, Maarten Lankhorst wrote: > > Patch not applied, SCHED_RR: > > ww_mutex isn't RT aware at all; its one of the things I still have on a > todo list. Should I look harder at finding time for this? The RT usage in the test is to just try and starve the kernel threads that may be used behind the atomic modeset - a problem we have encountered in the past. Afaik, no one is using ww_mutex from RT in the wild, calling the atomic modeset from the RT was just a shortcut to having the system fully populated with RT threads. To be more realistic we should be using a couple of normal modesetting threads vs a set of RT cpu hogs. Otoh, i915.ko always draws the ire of rt-linux so ww_mutex is likely to be in their sights in the near future (when i915.ko completes its transition to full atomic modesetting). -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
