Messages in this thread | | | Date | Wed, 4 Jul 2012 14:00:01 +0200 | From | Jiri Olsa <> | Subject | Re: [PATCH 07/10] perf, tool: Add support to specify hw event as pmu event term |
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On Wed, Jul 04, 2012 at 12:39:20PM +0200, Peter Zijlstra wrote: > On Wed, 2012-07-04 at 00:00 +0200, Jiri Olsa wrote: > > > > It's possible to use sysfs attribute name as 'event' term value, > > or any possible alias for hw event, e.g.: > > cycles OR cpu-cycles > > branch_misses OR branch-misses > > bus_cycles OR bus-cycles > > cache_misses OR cache-misses > > cache_references OR cache-references > > ref_cycles OR ref-cycles > > stalled_cycles_backend OR stalled-cycles-backend > > stalled_cycles_frontend OR stalled-cycles-frontend > > Do we really want to do that?
well, the aliasing works on sysfs filename base.. so when you specify event=str
'str' file is looked up in 'events' dir.
We use '_' in file names and '-' in event symbol names. I thought it might be confusing allowing just '_' so I added also the '-' version.
I could keep just the '-' version.. with some more work on kernel ATTR function names ;) but it seems like common sysfs practise to use '_'.
jirka
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