On Mon, Nov 04, 2013 at 08:17:24AM -0700, David Ahern wrote: > On 11/4/13, 4:06 AM, Jiri Olsa wrote: > >Adding the check for maximum allowed frequency rate > >defined in following file: > > /proc/sys/kernel/perf_event_max_sample_rate > > > >When we cross the maximum value we fail and display > >detailed error message with advise. > > perf commands should automatically adjust the default frequency too. > If the user did not specify a frequency then this message is going > to be confusing.
ok, I'll add that check and probably some warning if we are force to go below the default rate. > > Though the algorithm that keeps lowering the rate should be tweaked as well. yea.. I was thinking putting the max rate back up after some sane period or/plus having 'echo 0 > /proc/sys/kernel/perf_event_max_sample_rate' to disable it completely jirka -- 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/
