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ADAPTIVE PERIPHERAL COMPONENT INTERCONNECT EXPRESS LINK SUBSTATE INITIATION FOR OPTIMAL PERFORMANCE AND POWER SAVINGS
ADAPTIVE PERIPHERAL COMPONENT INTERCONNECT EXPRESS LINK SUBSTATE INITIATION FOR OPTIMAL PERFORMANCE AND POWER SAVINGS
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机译:自适应外围组件互连快速链接子状态初始化,可实现最佳性能和功率节省
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摘要
Systems, methods, and apparatus for adaptively modifying latency times governing entry of a PCIe interface into low power states are described. A method performed by a controller of a PCIe interface includes determining that a burst of data is being transmitted on a PCIe link, configuring a timer to signal when an entry latency period has elapsed after determining that a PCIe link has entered an idle state, causing one or more circuits of the PCIe interface to enter a low-power state when the timer signals that the entry latency period has elapsed before the PCIe link becomes active, and increasing the entry latency period when a number of entries of the PCIe interface to the low-power state that occurs during transmission of the burst of data exceeds a threshold maximum number.
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