0ef36fec5e
* add session overhead funcitons & modify perf app
* remove class:: for function calls
* add session overhead funcitons & modify perf app
* remove class:: for function calls
* review comments
* fix comments
* duration to double
* update perf sample for thread_id for overhead
* remove debug statements
* revoew comments
* return value chnage to double
* remove session ID functions
* check session id validity
[ROCm/rocdecode commit: 48b56de77a]