On 10/07/2014 12:12 pm, Grozdan wrote:
Hi, I went through the Majordomo list but was not able to find an appropriate list so I'm trying here. 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 PS: If this is not the right list, please forward this mail to the appropriate one
I think your question may be too advanced for the newbie list. I recommend posting this to linux-kernel. Be sure to include your exact kernel version (/proc/version), total RAM, which desktop environment you are using (including version), and the specific software you are using for the encoding. Output from /proc/sched_debug, /proc/schedstat, and /proc/*PID*/sched would be useful as well. (where *PID* is the process id of your encoding process). Joseph D. Wagner -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs
