perf timechart segfault

[Sitsofe Wheeler]

Hi,

I've run into a couple of issues using perf timechart:

1. (On 2.6.36) If I issue
   echo 0 > /proc/sys/kernel/perf_event_paranoid
   as root before running
   perf timechart record echo
   as a normal user the following is printed:

   Fatal: Permission error - are you root?
  	 Consider tweaking /proc/sys/kernel/perf_event_paranoid.

   Shouldn't it just say it needs root permissions for a timechart
   record?

2. (On -tip) Running
   perf timechart record echo
   outputs
   invalid or unsupported event: 'power:power_start'
   Run 'perf list' for a list of valid events

3. (On 2.6.36) I can't seem to convince timechart to ever capture more
   than 34000 samples. When trying to record using
   perf timechart record -fga sleep 10
   and then creating a graph using perf timechart, it only ever outputs
   a few seconds worth.

-- 
Sitsofe | http://sucs.org/~sits/
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" 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.tux.org/lkml/