Patent application number | Description | Published |
20080207278 | Mobile platform tracking in wireless networks - A mobile station in a wireless network provides a presence indication when in a power saving state. The presence indication is sent periodically, and the period is dependent on whether the mobile station is stationary or in motion. The period may also be dependent on an asset protection level of the mobile station. | 08-28-2008 |
20100077243 | CONSERVING POWER IN A COMPUTER SYSTEM - A power management unit (PMU) may determine an optimal power saving state using a break-even period of a power saving state and an expected idle duration based on a first policy. The PMU may determine the optimal power saving state using a first break even period and actual idle duration based on a second policy. The break-even period may equal a minimum time a computer system should remain in a power saving state to compensate for the power consumed by the system to enter and exit that power saving state. The expected idle time duration is determined as an average of idle duration and a recent sample of idle duration. The actual idle duration is the difference of a first and second time point that represents entry and exit points to and from the power saving state. The PMU may transition the system to the optimal power saving state. | 03-25-2010 |
20100153590 | DMA (DIRECT MEMORY ACCESS) COALESCING - In general, in one aspect, a method includes determining a repeated, periodic DMA (Direct Memory Access) coalescing interval based, at least in part, on a power sleep state of a host platform. The method also includes buffering data received at the device in a FIFO (First-In-First-Out) queue during the interval and DMA-ing the data enqueued in the FIFO to a memory external to the device after expiration of the repeated, periodic DMA coalescing interval. | 06-17-2010 |
20100332869 | Method and apparatus for performing energy-efficient network packet processing in a multi processor core system - A method and apparatus for managing core affinity for network packet processing is provided. Low-power idle state of a plurality of processing units in a system including the plurality of processing units is monitored. Network packet processing is dynamically reassigned to processing units that are in a non-low power idle state to increase the low-power idle state residency for processing units that are in a low-power idle state resulting in reduced energy consumption. | 12-30-2010 |
20120131370 | CONSERVING POWER IN A COMPUTER SYSTEM - A power management unit (PMU) may determine an optimal power saving state using a break-even period of a power saving state and an expected idle duration based on a first policy. The PMU may determine the optimal power saving state using a first break even period and actual idle duration based on a second policy. The break-even period may equal a minimum time a computer system should remain in a power saving state to compensate for the power consumed by the system to enter and exit that power saving state. The expected idle time duration is determined as an average of idle duration and a recent sample of idle duration. The actual idle duration is the difference of a first and second time point that represents entry and exit points to and from the power saving state. The PMU may transition the system to the optimal power saving state. | 05-24-2012 |
20120137029 | DMA (DIRECT MEMORY ACCESS) COALESCING - In general, in one aspect, a method includes determining a repeated, periodic DMA (Direct Memory Access) coalescing interval based, at least in part, on a power sleep state of a host platform. The method also includes buffering data received at the device in a FIFO (First-In-First-Out) queue during the interval and DMA-ing the data enqueued in the FIFO to a memory external to the device after expiration of the repeated, periodic DMA coalescing interval. | 05-31-2012 |
20120278637 | METHOD AND APPARATUS FOR PERFORMING ENERGY-EFFICIENT NETWORK PACKET PROCESSING IN A MULTI PROCESSOR CORE SYSTEM - A method and apparatus for managing core affinity for network packet processing is provided. Low-power idle state of a plurality of processing units in a system including the plurality of processing units is monitored. Network packet processing is dynamically reassigned to processing units that are in a non-low power idle state to increase the low-power idle state residency for processing units that are in a low-power idle state resulting in reduced energy consumption. | 11-01-2012 |
Patent application number | Description | Published |
20090077394 | TECHNIQUES FOR COMMUNICATIONS BASED POWER MANAGEMENT - Techniques for communications based power management are described. An apparatus may comprise a managed power system having a communications sub-system and a computing sub-system, the communications sub-system to include a network state module operative to determine communications power state information, and send a power management message with the communications power state information. The apparatus may further comprise a power management module to receive the power management message, retrieve the communications power state information from the power management message, and manage power states for the computing sub-system based on the communications power state information. Other embodiments are described and claimed. | 03-19-2009 |
20090077395 | TECHNIQUES FOR COMMUNICATIONS POWER MANAGEMENT BASED ON SYSTEM STATES - Techniques for communications based power management based on system states are described. An apparatus may comprise a communications sub-system having a control policy module, a controller and a first transceiver capable of operating at different communications rates. The control policy module may be operative to receive computing power state information and communications state information, determine a communications rate parameter for the first transceiver based on the computing power state information and the communications state information, and instruct the controller to modify a communications rate for the first transceiver based on the communications rate parameter. Other embodiments are described and claimed. | 03-19-2009 |
20090077396 | TECHNIQUES FOR COLLABORATIVE POWER MANAGEMENT FOR HETEROGENEOUS NETWORKS - Techniques for collaborative power management for heterogeneous networks are described. An apparatus may include a first node having a managed power system and a power management module to manage power states for the managed power system. The power management module may be operative to communicate power state information with a second node over a communications connection, and manage the power states for the managed power system based on power state information for the second node. Other embodiments are described and claimed. | 03-19-2009 |
20090077401 | BUFFERING TECHNIQUES FOR POWER MANAGEMENT - Buffering techniques for power management are described. A method may comprise modifying a power state for a communications sub-system and a computing sub-system from a higher power state to a lower power state, storing packets of information in a buffer for the communications sub-system during a communications idle duration period, generating a variable receive threshold value for the buffer, and transferring the stored packets of information from the buffer to the computing sub-system based on a variable receive threshold value. Other embodiments are described and claimed. | 03-19-2009 |
20090262675 | POWER MANAGEMENT IN WIRELESS NETWORK - Embodiments of apparatuses, articles, methods, and systems for power management in wireless networks are generally described herein. Other embodiments may be described and claimed. | 10-22-2009 |
20100069126 | GENERATING, AT LEAST IN PART, AND/OR RECEIVING, AT LEAST IN PART, AT LEAST ONE REQUEST - In an embodiment, an apparatus is provided that may include circuitry to generate, at least in part, and/or receive, at least in part, at least one request that at least one network node generate, at least in part, information. The information may be to permit selection, at least in part, of (1) at least one power consumption state of the at least one network node, and (2) at least one time period. The at least one time period may be to elapse, after receipt by at least one other network node of at least one packet, prior to requesting at least one change in the at least one power consumption state. The at least one packet may be to be transmitted to the at least one network node. Of course, many alternatives, modifications, and variations are possible without departing from this embodiment. | 03-18-2010 |
20100070652 | Synchronization of multiple incoming network communication streams - A device, method, and computer readable medium are disclosed. In one embodiment the device includes a first network packet storage queue that is capable of storing incoming network packets from a network. The device also includes a second network packet storage queue that is capable of storing incoming network packets from a network. The device also includes flush logic to synchronize a flush of the network packets stored in the first and second network packet storage queues. The flush is triggered by a flush event affecting at least one of the storage queues. | 03-18-2010 |
20110154073 | SYSTEMS AND METHODS FOR ENERGY EFFICIENT LOAD BALANCING AT SERVER CLUSTERS - Methods and systems to balance the load among a set of processing units, such as servers, in a manner that allows the servers periods of low power consumption. This allows energy efficient operation of the set of processing units. Moreover, the process is adaptable to variations in systemic response times, so that systemic response times may be improved when operational conditions so dictate. | 06-23-2011 |
20110154080 | METHOD AND APPARATUS FOR I/O DEVICES ASSISTED PLATFORM POWER MANAGEMENT - Embodiments of an apparatus, system and method are described for input/output (I/O) device assisted platform power management. An apparatus may comprise, for example, power management logic operative to receive idle duration information from one or more input/output (I/O) devices and to modify a power state for one or more components based on the idle information. Other embodiments are described and claimed. | 06-23-2011 |
20120076011 | POWER SAVING SYSTEM, METHOD AND APPARATUS FOR A WIRELESS DEVICE - A power saving method, system and apparatus may include detecting a traffic mode based on statistics of packet network traffic. A packet-free time may be predicted based on a quality of service metric associated with the traffic mode. A low power state may be entered based on the predicted packet-free time, the quality of service metric and the traffic mode. Other embodiments are described and claimed. | 03-29-2012 |
20120178491 | TECHNIQUES FOR COMMUNICATIONS POWER MANAGEMENT BASED ON SYSTEM STATES - Techniques for communications based power management based on system states are described. An apparatus may comprise a communications sub-system having a control policy module, a controller and a first transceiver capable of operating at different communications rates. The control policy module may be operative to receive computing power state information and communications state information, determine a communications rate parameter for the first transceiver based on the computing power state information and the communications state information, and instruct the controller to modify a communications rate for the first transceiver based on the communications rate parameter. Other embodiments are described and claimed. | 07-12-2012 |
20130170349 | GENERATING, AT LEAST IN PART, AND/OR RECEIVING, AT LEAST IN PART, AT LEAST ONE REQUEST - In an embodiment, an apparatus is provided that may include circuitry to generate, at least in part, and/or receive, at least in part, at least one request that at least one network node generate, at least in part, information. The information may be to permit selection, at least in part, of (1) at least one power consumption state of the at least one network node, and (2) at least one time period. The at least one time period may be to elapse, after receipt by at least one other network node of at least one packet, prior to requesting at least one change in the at least one power consumption state. The at least one packet may be to be transmitted to the at least one network node. Of course, many alternatives, modifications, and variations are possible without departing from this embodiment. | 07-04-2013 |
Patent application number | Description | Published |
20120079482 | COORDINATING DEVICE AND APPLICATION BREAK EVENTS FOR PLATFORM POWER SAVING - Systems and methods of managing break events may provide for detecting a first break event from a first event source and detecting a second break event from a second event source. In one example, the event sources can include devices coupled to a platform as well as active applications on the platform. Issuance of the first and second break events to the platform can be coordinated based on at least in part runtime information associated with the platform. | 03-29-2012 |
20120210032 | TECHNIQUES FOR MANAGING POWER CONSUMPTION STATE OF A PROCESSOR - Techniques are described for determining a temporary latency tolerance report (tLTR) value. A processing unit has to respond to a device interrupt within a duration specified by tLTR to ensure no incoming data is lost due to device buffer overflow. The tLTR value can be used to prevent the processing unit from entering too deep a sleep state when a device driver anticipates multiple sequential interrupts for a transaction. | 08-16-2012 |
20130138985 | POWER MANAGEMENT USING RELATIVE ENERGY BREAK-EVEN TIME - Systems and methods may provide for determining an absolute energy break-even time for a first low power state with respect to a current state of a system. A relative energy break-even time may also be determined for the first low power state with respect to a second low power state based on at least in part the absolute energy break-even time. In addition, an operating state may be selected for the system based on at least in part the relative energy break-even time. | 05-30-2013 |
20130275789 | CREDIT BASED POWER MANAGEMENT - An embodiment may include circuitry to determine whether to issue at least one credit to at least one sender of at least one packet. The credit(s) may be to grant permission to the at least one sender to issue the at least one packet to at least one receiver of the at least one packet. The determination of whether to issue the credit(s) may be based, at least in part, upon whether a time in which the at least one receiver is in a relatively lower power state prior to issuance of the credit(s) is at least sufficient to provide at least a predetermined amount of reduction in power consumption. The relatively lower power state may be relative to a relatively higher power state of the at least one receiver that prevails at the issuance of the credit(s). Additionally or alternatively, the circuitry may be to receive such credit(s). | 10-17-2013 |
20140029617 | PACKET PROCESSING APPROACH TO IMPROVE PERFORMANCE AND ENERGY EFFICIENCY FOR SOFTWARE ROUTERS - Methods, apparatus and systems for improved performance and energy efficiency of software-based routers. A software router running on a host computer system employing multiple Network Interface Controllers (NICs) maintains a routing table wherein packet flows are classified as managed flows (MFs) under which packets are received at and forwarded from the same NIC and unmanaged flows UFs under which packets are received at and forwarded from different NICs. Forwarding table data is employed by a NIC to facilitate packet identification and flow classification operations under which the NIC determines whether a received packet is an MF, UF, or an unclassified flow. Under various schemes, packet forwarding for MFs is handled by the software router architecture such that either only the packet header is copied into memory in the host or the entire packet forwarding is handled by the NIC. | 01-30-2014 |
20140101674 | COORDINATING DEVICE AND APPLICATION BREAK EVENTS FOR PLATFORM POWER SAVING - Systems and methods of managing break events may provide for detecting a first break event from a first event source and detecting a second break event from a second event source. In one example, the event sources can include devices coupled to a platform as well as active applications on the platform. Issuance of the first and second break events to the platform can be coordinated based on at least in part runtime information associated with the platform. | 04-10-2014 |
20140169281 | CHANNEL AWARE JOB SCHEDULING - Methods and systems may provide for determining quality of service (QoS) information for a job associated with an application, and determining a condition prediction for a wireless channel of a mobile platform. Additionally, the job may be scheduled for communication over the wireless channel based at least in part on the QoS information and the condition prediction. In one example, scheduling the job includes imposing a delay in the communication if the condition prediction indicates that a throughput of the wireless channel is below a threshold and the delay complies with a latency constraint of the QoS information. | 06-19-2014 |
20140173314 | ADAPTIVELY DISABLING AND ENABLING SLEEP STATES FOR POWER AND PERFORMANCE - Methods and systems may provide for determining whether a runtime disablement condition is met with respect to a sleep state and disabling the sleep state if the runtime disablement condition is met. Additionally, the sleep state may be enabled if a runtime reinstatement condition is met. In one example, determining whether the runtime disablement condition is met includes determining a false entry rate for the sleep state, and comparing the false entry rate to an energy-based threshold, wherein the sleep state is disabled if the false entry rate exceeds the energy-based threshold. | 06-19-2014 |
20140177494 | CLOUD-AWARE COLLABORATIVE MOBILE PLATFORM POWER MANAGEMENT USING MOBILE SENSORS - Methods and systems may provide for accumulating sensor-based information from a plurality of mobile devices and identifying context information in the sensor-based information, wherein the context information is relevant to a particular mobile device in the plurality of mobile devices. Additionally, an operational recommendation may be sent to the particular mobile device based on the context information. In one example, the operational recommendation identifies one or more of a power management action, a performance management action, a wireless interface selection and a wireless access point selection. | 06-26-2014 |
20140187264 | SITUATION AWARE SENSOR POWER MANAGEMENT - Methods and systems may provide for determining a status of a mobile platform, wherein the status indicates whether the mobile platform is stationary, and adapting a detection schedule of one or more location sensors on the mobile platform based at least in part on whether the mobile platform is stationary. Additionally, one or more location updates may be generated based at least in part on information from the one or more location sensors. In one example, a location request is received, wherein the detection schedule is adapted further based on quality of service (QoS) information associated with the location request, and wherein the one or more location updates are generated in response to the location request. | 07-03-2014 |
20140189385 | INTELLIGENT RECEIVE BUFFER MANAGEMENT TO OPTIMIZE IDLE STATE RESIDENCY - Methods and systems may provide for determining a plurality of buffer-related settings for a corresponding plurality of idle states and outputting the plurality of buffer-related settings to a device on a platform. The device may determine an observed bandwidth for a channel associated with a receive buffer and identify a selection of a buffer-related setting from the plurality of buffer-related settings based at least in part on the observed bandwidth. In one example, each buffer-related setting includes a latency tolerance and a corresponding idle duration. | 07-03-2014 |
20140258749 | DYNAMICALLY ENTERING LOW POWER STATES DURING ACTIVE WORKLOADS - Systems and methods may provide for identifying runtime information associated with an active workload of a platform, and making an active idle state determination for the platform based on at least in part the runtime information. In addition, a low power state of a shared resource on the platform may be controlled concurrently with an execution of the active workload based on at least in part the active idle state determination. | 09-11-2014 |
20140289546 | POWER MANAGEMENT USING REWARD-BASED SLEEP STATE SELECTION - Systems and methods may provide for conducting a reward determination for a plurality of sleep states to obtain a plurality of reward determinations with respect to a device. In addition, a sleep state may be selected for the device from the plurality of sleep states based at least in part on the plurality of reward determinations. In one example, false entry and missed opportunity probabilities may be determined for stochastic interrupts, wherein the reward determination is conducted based at least in part on the false entry and missed opportunity probabilities. | 09-25-2014 |