simpleperf to profile android (Java/C++) application

[Priyanka Bose]

Hi,

We are trying to profile android app start up time for an Intel x86 based platform.

We are using android utility "simpleperf" to analyse the performance bottlenecks and narrow down to any micro architectural issues.

 We are using the below simpleperf commands :

The simple command (1) works successfully to record profile data. but when we use the command to record the cache issues pertaining to the app and its related processes and functions

, we observe crashes. This is regardless of any app we are trying to record profile data for.

(1) kbl_nuc:/data # ./simpleperf record  -a -g -c 15000 -m 16384 --duration 15 --app com.cooyostudio.marble.blast   

(2) kbl_nuc:/data # ./simpleperf record  -g -c 15000 -m 16384 --group cache-references,cache-misses --group cache-references:u,cache-misses:u --group cache-references:k,cache-misses:k -e instructions --duration 15 --app com.cooyostudio.marble.blast 

Segmentation Fault (core dumped)

Best Regards

Priyanka