Hi, Basically, my problem is this:
I'm doing a lot of audio/video encoding on an AMD FX8350. The encoder process always runs at nice 10. Even so, my whole system feels very sluggish. Switching between different app windows and/or virtual desktops takes up usually 3-5 seconds giving the impression that there is not enough processing power. Browsing the web is also severely impacted. I had to tune CFS in order to be (much) more responsive during an encoding session. This has worked out pretty well thus far, but it is my opinion that the user should *not* need to fiddle with buttons to make his system respond fluently even under high load. The below is what I had to do in order to get a snappy system during such load kernel.sched_nr_migrate = 64 kernel.sched_latency_ns = 65000000 kernel.sched_wakeup_granularity_ns = 100000 kernel.sched_min_granularity_ns = 100000 kernel.sched_migration_cost_ns = 7000000 I have tried 3 different kernels, including one compiled myself, but the results are the same Kernels I tried were: 3.11.10, 3.12 and 3.16.4 (self-compiled) My system specs are as follows CPU: AMD FX-8350 @ 4GHz RAM: 16GB DDR1333 GPU: NVIDIA GTX 560 with NV blob driver HDD: Seagate Constellation ES.3 128MB cache Desktop: KDE 4.11 -- Yours truly -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
