摘要:
In an embodiment, a processor includes at least a first core. The first core includes execution logic to execute operations, and a first event counter to determine a first event count associated with events of a first type that have occurred since a start of a first defined interval. The first core also includes a second event counter to determine a second event count associated with events of a second type that have occurred since the start of the first defined interval, and stall logic to stall execution of operations including at least first operations associated with events of the first type, until the first defined interval is expired responsive to the first event count exceeding a first combination threshold concurrently with the second event count exceeding a second combination threshold. Other embodiments are described and claimed.
摘要:
In an embodiment, a processor includes at least one core. The at least one core includes an execution unit and a current protection (IccP) controller. The IccP controller may receive instruction width information associated with one or more instructions of an instruction queue prior to execution of the instructions by the execution unit. The IccP controller may determine an anticipated highest current level (Icc) for the at least one core based on the instruction width information. The IccP controller may generate a request for a first license for the at least one core that is associated with the Icc. Other embodiments are described and claimed.
摘要:
In an embodiment, a processor includes a power control unit and a plurality of components. A first component of the plurality of components is to receive a power input from a power supply device. The power control unit is to: determine a received voltage at a power input terminal of the first component; determine a voltage difference between the received voltage of the first component and a reliability goal voltage of the first component; determine a running average value based on the voltage difference; and adjust a supply voltage of the power supply device based on the running average value. Other embodiments are described and claimed.
摘要:
Examples are disclosed for an integrated circuit (IC) device coupled to a battery-operated power supply unit, such as an IC in a mobile computing device or wireless phone, to accurately determine energy usage drawn from the power supply unit under rapidly dynamic circumstances. A current sense signal of a power line from the power supply unit is digitized. The digitized current sense is added to an accumulator at a rate that is approximately proportional to a voltage of the power line from the power supply unit. The accumulator is then outputted and scaled to units relevant to energy measurements. The energy measurement is used to estimate remaining battery life. Triggering the digitization of the current sense signal may be by use of a pulse generation circuit, or by use of an overflow indicator of an accumulator for a digitized voltage sense signal. Other examples are described and claimed.
摘要:
Methods and apparatus relating to controlling power consumption by a Power Supply Unit (PSU) during idle state are described. In one embodiment, a power supply unit enters a lower power consumption state (e.g. S9) based on power state information, corresponding to one or more components of the platform, and comparison of a first value (corresponding to a frequency/frequentness of entry into the lower power consumption state) to a first threshold value. Other embodiments are also disclosed and claimed.
摘要:
For one disclosed embodiment, a processor comprises a plurality of processor cores to operate at variable performance levels. One of the plurality of processor cores may operate at one time at a performance level different than a performance level at which another one of the plurality of processor cores may operate at the one time. The plurality of processor cores are in a same package. Logic of the processor is to set one or more operating parameters for one or more of the plurality of processor cores. Logic of the processor is to monitor activity of one or more of the plurality of processor cores. Logic of the processor is to constrain power of one or more of the plurality of processor cores based at least in part on the monitored activity. The logic to constrain power is to limit a frequency at which one or more of the plurality of processor cores may be set. Other embodiments are also disclosed.
摘要:
For one disclosed embodiment, a processor comprises a plurality of processor cores to operate at variable performance levels. One of the plurality of processor cores may operate at one time at a performance level different than a performance level at which another one of the plurality of processor cores may operate at the one time. The plurality of processor cores are in a same package. Logic of the processor is to set one or more operating parameters for one or more of the plurality of processor cores. Logic of the processor is to monitor activity of one or more of the plurality of processor cores. Logic of the processor is to constrain power of one or more of the plurality of processor cores based at least in part on the monitored activity. The logic to constrain power is to limit a frequency at which one or more of the plurality of processor cores may be set. Other embodiments are also disclosed.
摘要:
In an embodiment, a processor includes measurement logic to measure a usage associated with the processor. The processor also includes statistical logic to determine, based on a statistical procedure, whether to provide a permission to record an increase in usage responsive to an indication that the usage has increased by a defined amount. The processor also includes control logic to record the defined increase in usage in non-volatile memory responsive to receipt of the permission to record from the statistical logic. Other embodiments are described and claimed.
摘要:
A processor may include a core and an uncore area. The power consumed by the core area may be controlled by controlling the Cdyn of the processor such that the Cdyn is within an allowable Cdyn value irrespective of the application being processed by the core area. The power management technique includes measuring digital activity factor (DAF), monitoring architectural and data activity levels, and controlling power consumption by throttling the instructions based on the activity levels. As a result of throttling the instructions, throttling may be implemented in 3rd droop and thermal design point (TDP). Also, the idle power consumed by the uncore area while the core area is in deep power saving states may be reduced by varying the reference voltage VR and the VP provided to the uncore area. As a result, the idle power consumed by the uncore area may be reduced.
摘要:
Methods and apparatus relating to autonomous C state mechanism and computational engine alignment for improved processor power efficiency are described. An embodiment determines whether a semiconductor package should enter a package C state based on energy consumption values for entry into and exit from the package C state, an amount of time the semiconductor package stayed in the package C state previously, and one or more breakeven time points between the various package C states. Another embodiment detects a delay by an imaging computational unit of a processor to enter a low power consumption state relative to one or more other computational units of the processor. The logic causes the imaging computational unit to enter the low power consumption state in response to detection of the delay. Other embodiments are also disclosed and claimed.