摘要:
In one embodiment, a processor includes: a plurality of cores; a power controller including a logic to autonomously demote a first request for at least one core of the plurality of cores to enter a first low power state, to cause the at least one core to enter a second low power state, the first low power state a deeper low power state than the second low power state; and an interface to receive an input from a system software, the input including at least one demotion control parameter, where the logic is to autonomously demote the first request based at least in part on the at least one demotion control parameter. Other embodiments are described and claimed.
摘要:
Methods and apparatus relating to multi-level CPU (Central Processing Unit) high current protection are described. In one embodiment, different workloads may be assigned different license types and/or weights based on micro-architectural events (such as uop (micro-operation) types and sizes) and/or data types. Other embodiments are also disclosed and claimed.
摘要:
In one embodiment, a processor includes a core with a front end unit, at least one execution unit, and a back end unit. Multiple voltage drop detectors can be located within the core each to output a voltage drop signal when a detected voltage falls below a threshold voltage. In turn, a current transient logic coupled to receive the voltage drop signals can control a micro-architectural parameter of at least one of the front end unit, execution unit and back end unit responsive to receipt of a voltage drop signal. Other embodiments are described and claimed.
摘要:
In one embodiment, a processor includes a core with a front end unit, at least one execution unit, and a back end unit. Multiple voltage drop detectors can be located within the core each to output a voltage drop signal when a detected voltage falls below a threshold voltage. In turn, a current transient logic coupled to receive the voltage drop signals can control a micro-architectural parameter of at least one of the front end unit, execution unit and back end unit responsive to receipt of a voltage drop signal. Other embodiments are described and claimed.
摘要:
Methods and apparatus relating to multi-level CPU (Central Processing Unit) high current protection are described. In one embodiment, different workloads may be assigned different license types and/or weights based on micro-architectural events (such as uop (micro-operation) types and sizes) and/or data types. Other embodiments are also disclosed and claimed.
摘要:
A processor saves micro-architectural contexts to increase the efficiency of code execution and power management. A save instruction is executed to store a micro-architectural state and an architectural state of a processor in a common buffer of a memory upon a context switch that suspends the execution of a process. The micro-architectural state contains performance data resulting from the execution of the process. A restore instruction is executed to retrieve the micro-architectural state and the architectural state from the common buffer upon a resumed execution of the process. Power management hardware then uses the micro-architectural state as an intermediate starting point for the resumed execution.
摘要:
In one embodiment, the present invention includes a processor having a core and a power controller to control power management features of the processor. The power controller can receive an energy performance bias (EPB) value from the core and access a power-performance tuning table based on the value. Using information from the table, at least one setting of a power management feature can be updated. Other embodiments are described and claimed.
摘要:
An apparatus, method and system is described herein for thread consolidation. Current processor utilization is determined. And consolidation opportunities are identified from the processor utilization and other exaction parameters, such as estimating a new utilization after consolidation, determining if power savings would occur based on the new utilization, and performing migration/consolidation of threads to a subset of active processing elements. Once the consolidation is performed, the non-subset processing elements that are now idle are powered down to save energy and provide an energy efficient execution environment.
摘要:
Systems and methods of managing power provide for issuing a first operating requirement from a first processor core and issuing a second operating requirement from a second processor core. In one embodiment, the operating requirements can reflect either a power policy or a performance policy, depending upon the factor that is currently most important to software. Hardware coordination logic is used to coordinate a shared resource setting with the operating requirements. The hardware coordination logic is also able to coordinate the shared resource setting with independent resource settings of the first and second processor cores based on the operating requirements.
摘要:
In one embodiment, the present invention includes a multicore processor having first and second cores to independently execute instructions, the first core visible to an operating system (OS) and the second core transparent to the OS and heterogeneous from the first core. A task controller, which may be included in or coupled to the multicore processor, can cause dynamic migration of a first process scheduled by the OS to the first core to the second core transparently to the OS. Other embodiments are described and claimed.