Use Performance Snapshot when you want to see a summary of issues affecting your application. This analysis also includes recommendations for other analysis types that you can run next for a deeper investigation.
vtune -collect performance-snapshot [-knob <knobName=knobValue>] [--] <target>
Knobs:
Collect the data required to compute memory bandwidth.
Default value : false
Possible values : true | false
Evaluate maximum achievable local DRAM bandwidth before starting the collection. This data is used to scale bandwidth metrics on the timeline and calculate thresholds.
Default value : true
Possible values : true | false
For the most current information on available knobs (configuration options) for Performance Snapshot analysis, enter:
vtune -help collect performance-snapshot
This example shows how to run Performance Snapshot on a Linux* myApplication application:
vtune -collect performance-snapshot -- /home/test/myApplication
When the data collection is complete, do one of the following to view the result:
Use the -report action to view the data from command line.
Use the -report-output action to write report to a .txt or .csv file
Open the data collection result (*.vtune) in the VTune Profiler graphical interface.