Hotspot View by Function (vtl)

This information applies to the command line interface (vtl) only.

To display the percentage of samples collected for each active function or method in the module, use the -hotspot-function (or -hf) option and specify module name(s) with the -mn option.

Command-line example:

>vtl view -hf -mn vtunedemo

Grouping hotspots by function provides the names of the functions sorted by maximum samples and percentage of samples collected for each function.

Percentage of samples means the percentage calculated using the number of samples collected for a specific function and the total number of samples collected for your entire selection.

This is the table structure for the hotspots by functions view:

Column Heading

Description

Function

Name of the function.

Module

Module in which the function resides.

Size

Size of the function in bytes.

Event

Name of the monitored event.

Events%

Percentage of total events collected in run.

Samples

Number of samples collected for the event in this function.

Events

The event count is based on the number of samples collected X Sample After value.

Address

 

Relative Virtual Address of the function.

Segment

Segment used by the function.

Offset

Offset of segment.

Full Name

Name of the function as it appears in your code.

CPU

Logical CPU where the samples were collected.

note

The command line VTune(TM) Performance Analyzer can display function names only if the symbol information is available in the executable. It does not support other symbol files, such as .map and .pdb. If you cannot provide this information, only the group by address option is available.

You may use the -symbol-dir (or -sd) option to specify the directory/directories where to have the VTune analyzer search for the symbol file. For more details, see the Specifying the Symbol Directory topic.

More about Sampling Views

More about Event Ratios