Displays the GPU sleep states and processor frequency by device and over time.
To access this window: Click the Graphics C/P States sub-tab in the Platform Power analysis result tab.
The Graphics C/P States window is available in the Platform Power Analysis viewpoint that provides power-related data collected on a target system. This window displays the time that each device spent in each C-State and P-State by frequency and sleep state, and over time.
Note
Platform Power Analysis viewpoint is available as part of energy analysis. Energy analysis is provided by the Intel® VTune™ Amplifier for Systems only. Energy analysis collection is supported for target Android*, Windows* or Linux* devices.
Use this window to identify what device spent time at what frequency and to understand what devices were active at what timeframes during the data collection.
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Graphics C/P States Window Layout |
Graphics C/P States Window Panes
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Graphics C/P States Pane
The Graphics C/P States pane shows the time spent in each state, by device. Click the expand
/collapse
buttons in the data columns to expand the column and show data for different C-States and P-States in each device.
Timeline Pane
The Timeline pane graphically displays the C-States and P-States of each device, at each point in time. Each state is shown in a different color. It also shows sampling points. The frequency graph is a dashed line to indicate that the trend has been inferred from data read from the hardware at discrete sampling points instead of from a residency counter. Active time on the graphics C-state residency counters is marked on the P-state trend as a green bar to highlight the relationship between RC0 residency and frequency transitions. Use the legend on the right to see the colors related to the different states or features, and check/uncheck boxes to add or remove optional display features.