インテル® VTune™ Amplifier 2018 ヘルプ
Use the hotspots command line report to identify program units (for example: functions, modules, or objects) that take the most processor time (Hotspots analysis), underutilize available CPUs (Concurrency analysis), have long waits (Locks and Waits analysis), and so on.
The report displays the hottest program units in the descending order by default, starting from the most performance-critical unit. The command-line reports provide the same data that is displayed in the default GUI analysis Viewpoint.
To display a list of available groupings for a Hotspots report, enter amplxe-cl -report hotspots -r <result_dir> group-by=?. If you do not specify a result directory, the latest result is used by default.
Example 1: Hotspots Report with Module Grouping
This example opens the Hotspots report for the r001hs Hotspots analysis result and groups the data by module.
$ amplxe-cl -report hotspots -r r001hs -group-by module
Module CPU Time
----------------- --------
analyze_locks 10.080s
KERNELBASE 0.679s
ntdl 0.164s
...Example 2: Hotspots Report with Limited Items
This example displays the Hotspots report for the r001hs analysis result including only the top two functions with the highest CPU Time values. Functions having insignificant impact on performance are excluded from output.
$ amplxe-cl -report hotspots -r r001hs -limit 2
Function CPU Time
---------------- --------
grid_intersect 5.489s
sphere_intersect 3.590s