* Help needed. Default value for a event parameter (param=?)
@ 2016-04-26 13:30 Anurup M
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From: Anurup M @ 2016-04-26 13:30 UTC (permalink / raw)
To: linux-perf-users
I have a question about perf event parameter. I am trying to add an event parameter
which should take a default value if not input by the user.
I have the event added in sys/bus/event_source/devices/<pmu>/events/ and there
is a configurable event parameter "unit=?"
ex: event=0x301,units=?
The perf list list it as below
# perf list
<pmu>/<event_alias>,units=?/ [Kernel PMU event]
Now I have a requirement that If user does not pass any value for the parameter "unit"
I should take a default value in my PMU implementation. Is this supported?
If not please guide me on where the change is needed.
Any suggestions are appreciated.
Thanks,
Anurup
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2016-04-26 13:30 Help needed. Default value for a event parameter (param=?) Anurup M
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