Window: CPU C/P States - Platform Power Analysis
- Analyze the amount of time spent in each sleep state (C-State) and processor frequency (P-State).
- Identify which core spent time at what frequency.
- Understand which cores were active during which timeframes during data collection.
- Review the state residency by core, module, or package.
- Explore how the state and frequency changed over time.
CPU C/P States Pane
Types of data presented on the timeline. Filter in/out any type of data presented on the timeline by selecting/deselecting corresponding check boxes. For example, each state is a different color and you may only be interested in the time spent in the active state. You can also filter in and out the hardware or package/core data if you are only interested in frequency metrics.
Wake-up Objectmarker shows processor wake-ups on the timeline. Hover over a yellow marker to see the time when the sleep state change happened and the name of the wake-up object.
Graphical representation of the sleep states in each core and in the overall package. Each state is a different color, which can be filtered using the legend. Hover over the band to view the total wake-up count. Click the / to expand the package and view the individual cores.
Graphical representation of the sleep states on the hardware. Each state is a different color, which can be filtered using the legend.
Frequency (by core)
Core frequency values at each point during the collection. Hover over the frequency P-State line to view a tooltip listing the frequency at each time point.
Wake up Band
Represents the wake-up objects that caused the core to switch from a sleep state to an active state. Each wake-up object type uses a unique color. By hovering over the band, you can view all of the wake-up objects at that point in time, including details such as wake-up object type, start time, and duration.