Quoting Joonas Lahtinen (2018-03-23 13:20:40) > So far nobody has been succesful in selling this to the userspace > compositors (the most likely user) or has somebody? I hadn't even contemplated selling it. However, it does seem applicable to the RealTime priorities for Vk and https://www.khronos.org/registry/EGL/extensions/NV/EGL_NV_context_priority_realtime.txt Gah. More fiddling with EGL... Personally I don't think I'd want X/gnome-shell/weston to adopt a RealTime or bust philosophy (i.e. I'm not planning to send a patch to raise weston from PRIORITY_HIGH to PRIORITY_RT), but that doesn't mean there aren't scenarios where it will be important. So a context param, say PREEMPT_TIMEOUT in ns with 0 meaning disable and bounded by CAP_SYS_NICE. Too soft? CAP_SYS_ADMIN, since it's about giving permission to nuke others? Implementation side, having it on the context is a fiddle, but we should be able to set a queue_timeout at the same time as setting queue_priority to save having to find the preempting context at irq time. -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
