https://bugs.freedesktop.org/show_bug.cgi?id=84570
--- Comment #19 from Andreas Hartmetz <ahartm...@gmail.com> --- I've noticed that disabling CPU frequency scaling makes a big difference in the severity of micro-hangs (3.17, dynamic lights off). My explanation is that, when threads are waiting for each other, the scheduler doesn't know that the apparently "idle-blocked" threads would all run faster overall if the CPU went faster. Doesn't matter if that's wrong, the difference is there... At least on AMD (some Intel CPUs use a special frequency scaling driver), you can effectively disable CPU frequency scaling like so: echo performance | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor Maybe that also helps a bit with dynamic lights on? -- You are receiving this mail because: You are the assignee for the bug.
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