* Perf Hardware Counters Android
@ 2015-09-21 7:54 Harris
2015-10-04 20:43 ` Arnaldo Carvalho de Melo
0 siblings, 1 reply; 2+ messages in thread
From: Harris @ 2015-09-21 7:54 UTC (permalink / raw)
To: linux-perf-users
I have compiled AOSP which includes perf tool.
Later I pushed this compiled perf module into
production build on my MotoG device.
Now I am able to run perf command however perf top
command only shows empty layout of table with no entry.
Similarly I found I can to record and
stat for software events only.
While hardware events like "cycles" are not recorded.
I wonder if it is not possible to use perf with production
built android or do I need to configure something.
Please help me out.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Perf Hardware Counters Android
2015-09-21 7:54 Perf Hardware Counters Android Harris
@ 2015-10-04 20:43 ` Arnaldo Carvalho de Melo
0 siblings, 0 replies; 2+ messages in thread
From: Arnaldo Carvalho de Melo @ 2015-10-04 20:43 UTC (permalink / raw)
To: Harris; +Cc: linux-perf-users
Em Mon, Sep 21, 2015 at 07:54:49AM +0000, Harris escreveu:
> I have compiled AOSP which includes perf tool.
> Later I pushed this compiled perf module into
> production build on my MotoG device.
> Now I am able to run perf command however perf top
> command only shows empty layout of table with no entry.
> Similarly I found I can to record and
> stat for software events only.
> While hardware events like "cycles" are not recorded.
>
> I wonder if it is not possible to use perf with production
> built android or do I need to configure something.
> Please help me out.
Please tell us the versions of all the components you mentioned, i.e.
what perf tool? What AOSP? What kernel?
- Arnaldo
^ permalink raw reply [flat|nested] 2+ messages in thread
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2015-09-21 7:54 Perf Hardware Counters Android Harris
2015-10-04 20:43 ` Arnaldo Carvalho de Melo
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