The majority of time the system is spent in DRIPS.Īfter Windows has entered the resiliency phase, software is considered to be fully prepared for low-power operation. The system transitions to maintenance phase to run system maintenance (this would show as a Screen Off segment in Sleepstudy).The system exits standby due to user input or a power button press.The power manager waits for activators to turn on their reference and cause the system to remain active.Session-0 services are throttled by the DAM to no more than one second of activity every 30 seconds.PDC resiliency clients are notified that the system is in resiliency phase.The system is ready for the SoC to enter the lowest power mode and remain idle. Consequently, the system may transition between idle and active states periodically. Note This is where explicitly allowed, value-adding software activities can run through activators. The system pauses desktop applications to reduce their power consumption during standby.Īll desktop applications have been suspended and no audio playback is occurring. The system is most likely to block on maintenance phase on AC power.Typically, less than one second on DC power.Wait for maintenance tasks to complete if running (most common on AC power). Suspend all foreground Microsoft Store apps.Īll foreground Microsoft Store apps have been suspended and no audio playback is occurring.The system suspends Microsoft Store apps that are in the foreground. Phase will last until all remote desktop sessions are disconnected or have timed out.Zero seconds if no remote desktop sessions are connected. There are no remote desktop sessions connected. Begin tracking outstanding power requests.Determine if remote desktop session(s) exist.The system is checking for remote desktop connections. If the system is on AC power, outstanding power requests will cause this phase to block indefinitely or until the power request is cleared by the application.The applications with power requests can be inspected by running Powercfg.exe with the /requests option. If the system is on battery power, outstanding power requests will cause this phase to block for a maximum of five minutes.Audio and mobile hotspots are allowed to run indefinitely.Īll outstanding power requests have been cleared by applications or the maximum time-out has been reached. Power requests will block the NoCS phase indefinitely on AC power, and for up to 5 minutes on DC power. These can be held by applications to keep the system active. The system waits for power requests to expire.The system waits for the sleep timeout to expire.It has not yet begun quiescing activities. The system is waiting either to idle out or for outstanding power requests from applications. The following table describes each phase of preparing software for modern sleep. This reduction in activity gives more opportunity for the hardware to enter low-power modes, thereby extending overall battery life. The purpose of these phases is to stop or reduce as much software activity on the system as possible. The phases are sequential-each phase is a set of activities that must be performed before the phase can be completed and the next phase entered. Windows transitions through a set of phases to prepare apps and system software for achieving low power. Within modern sleep, explicitly allowed, value-adding software activities can run intermittently, but the system will aim to spend most of the time in its lowest power state, known as deepest idle runtime platform state (DRIPS). Microsoft defines modern sleep as entering the low power phase indicated below. the user selecting Sleep from the power button in Settingsįollowing the display turning off, the system will begin quiescing software activities to enter modern sleep.Please see Modern Standby states for a higher level overview of this behavior.Ī system enters modern standby when the display turns off. When a system enters modern standby‐‐that is, when the screen turns off‐‐its software and applications must be made ready to enter its long term, low power sleep state.
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