Custom events with Linux perf profiler

[Richard Startin]

I would like to measure the number of page faults per benchmark iteration, rather than normalised per operation. With the perfnorm profiler, I can specify:


-prof perfnorm:events=page-faults


With


-prof perf:events=page-faults


I get:


'e' is not a recognized option
Usage: -prof <profiler-name>:opt1=value1,value2;opt2=value3

Options accepted by perf:

  delay=<ms>                       Delay collection for a given time, in milliseconds;
                                   -1 to detect automatically. (default: [-1])

  help                             Display help.


It looks like, as of version 1.21, the code in LinuxPerfNormProfiler dedicated to handling custom events is not implemented in LinuxPerfProfiler. If this isn't otherwise available, I would be happy to contribute a patch to add custom events to the perf profiler, but are contributions subject to the Oracle contributor agreement?


Thanks,

Richard