US20120005503A1 - Dynamic performance management - Google Patents
Dynamic performance management Download PDFInfo
- Publication number
- US20120005503A1 US20120005503A1 US13/231,854 US201113231854A US2012005503A1 US 20120005503 A1 US20120005503 A1 US 20120005503A1 US 201113231854 A US201113231854 A US 201113231854A US 2012005503 A1 US2012005503 A1 US 2012005503A1
- Authority
- US
- United States
- Prior art keywords
- rate
- network device
- partner
- maximum
- management unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
- H04L41/0833—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability for reduction of network energy consumption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/16—Threshold monitoring
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
Definitions
- a computer system such as a client and a network device may operate with a limited power budget. As performance requirements increase the heat dissipated by these devices also increase. Static power management techniques may comprise placing the computer system in a ‘sleep’ or ‘suspend’ mode while the computer system is inactive for a pre-determined time. Also, some dynamic power management may enable the computer system to operate at a reduced power with reduced performance. Dynamic power management techniques may comprise, for example, frequency scaling and power supply scaling.
- FIG. 1 illustrates an embodiment of a computing system 100 .
- FIG. 2 illustrates an embodiment of the computing system 100 supporting dynamic network re-configuration to meet a pre-defined power or temperature limit.
- references in the specification to “one embodiment”, “an embodiment”, “an example embodiment”, indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
- Embodiments of the invention may be implemented in hardware, firmware, software, or any combination thereof. Embodiments of the invention may also be implemented as instructions stored on a machine-readable medium, which may be read and executed by one or more processors.
- a machine-readable medium may include any mechanism for storing or transmitting information in a form readable by a machine (e.g., a computing device).
- a machine-readable medium may include read only memory (ROM); random access memory (RAM); magnetic disk storage media; optical storage media; flash memory devices; electrical, optical, acoustical or other forms of propagated signals (e.g., carrier waves, infrared signals, and digital signals).
- ROM read only memory
- RAM random access memory
- magnetic disk storage media e.g., magnetic disks
- optical storage media e.g., magnetic tapes
- flash memory devices e.g., magnetic disks, magnetic disks, and other magnetic disks, and other forms of propagated signals (e.g., carrier waves, infrared signals, and digital signals).
- electrical, optical, acoustical or other forms of propagated signals e.g., carrier waves, infrared signals, and digital signals.
- firmware, software, routines, and instructions may be described herein as performing certain actions. However, it should be appreciated that such descriptions are merely for convenience and that such actions in fact result from computing devices, processors, controllers, and other
- the network environment 100 may comprise a client 110 , a router 150 , a network 180 , and a server 190 .
- the client 110 , the router 150 , and the server 190 may support dynamic performance management techniques to optimize the performance of the components of a computer system for a pre-determined power or temperature limit.
- the server 190 may generate a response after receiving a request from the client 110 .
- the server 190 may send the response to the client 110 via the network 180 and the router 150 .
- the server 190 may comprise, for example, a web server, a transaction server, or a database server.
- the network 180 may comprise one or more network devices such as a switch or a router, which may process and send the packets to an appropriate network device provisioned in a path to the destination system.
- the network 180 may enable transfer of messages between the client 110 and the server 190 .
- the network devices of the network 180 may be configured to support various protocols such as TCP/IP.
- the client 110 may comprise a desktop computer system, a laptop computer system, a personal digital assistant, a mobile phone, or any such computing system.
- the client 110 may couple to the router 150 .
- the client 110 may support dynamic performance management techniques to optimize the performance of various components of the client 110 for a pre-determined power or temperature limit.
- the client 110 may be coupled to a link partner such as the router 150 via a local area network (LAN).
- the client 110 may support hyper text transfer protocol (HTTP), file transfer protocols (FTP), and TCP/IP, and similar other protocols.
- the router 150 may enable transfer of packets between the client 110 and the server 190 via the network 180 .
- the router 150 may be coupled to a link partner such as the client 110 via a local area network (LAN).
- the router 150 may comprise a memory 152 , a processor 155 , a performance management unit 156 , and a network interface 158 .
- the network interface 158 may receive the packets from the processor 155 and performance parameters from the performance management unit 156 . In one embodiment, the network interface 156 may forward the packets based on the performance parameters provided by the performance management unit 156 . In one embodiment, the network interface 158 may transfer the data at a rate determined by the performance parameters.
- the processor 155 may generate a ‘manage signal’ that may initiate the performance management unit 156 to determine the actual power consumed by the components of the router 150 . In one embodiment, the processor 155 may generate the ‘manage signal’ at pre-determined intervals of time.
- the performance management unit 156 may determine the reconfiguration values of the performance parameters. In one embodiment, the performance management unit 156 may determine the reconfigured performance values in response to receiving the mange signal at pre-determined intervals of time. In one embodiment, the performance management unit 156 may store the actual power consumption values in the memory 152 . In one embodiment, the performance management unit 158 may comprise power or thermal sensors to detect the actual power consumed or the heat dissipated.
- the performance management unit 156 may determine the reconfigured performance parameters as a function of the pre-defined power or temperature limits. In one embodiment, the performance management unit 156 may support dynamic performance management techniques to optimize the performance of the components of the router 150 for a pre-determined power or temperature limit.
- determination of the performance parameters at pre-defined intervals of time may allow the performance parameters to be re-configured dynamically.
- the performance management unit 156 may determine the reconfigured performance parameters and may provide the re-configured performance parameters to the network interface 158 .
- the dynamic reconfiguration of the performance parameters of a first device based on the pre-defined power or temperature limit may provide performance enhancements.
- the performance parameters of the first device may be determined based on the power consumption of the other devices in the router 150 . Such an approach may provide opportunistic performance enhancements in the first device while the other devices are operating at low power.
- FIG. 2 An embodiment of the router 150 supporting dynamic performance management to optimize its performance for a pre-determined power or temperature limit is described in FIG. 2 . Also, in one embodiment, the dynamic performance management technique is described with reference to configuring network parameters such as data transfer rate based on the pre-defined power limit. However, such dynamic power management techniques may also be used in other scenarios such as management of processor activity.
- a first device may initialize a set of variables after power-on.
- the router 150 may initialize a set of variables and the set of variables may comprise Max_limit, Min_limit, Delay, Rate, Max_Rate, Max_Partner Rate, and Max_link Rate.
- the Max_limit and Min_limit may define the power or thermal limit.
- the Max_limit and Min_limit may implement a hysterisis to avoid link rate fluctuations which may impact network performance.
- the Max_limit variable may equal the maximum pre-defined power or temperature limit value. If the actual power consumption value is above the Max-limit, the network performance may decrease. In one embodiment, the Min_limit variable may equal minimum pre-defined power or temperature limit value. In one embodiment, if the actual power consumption value is below the Min_limit, the network performance may increase. In one embodiment, the Max_limit and the Min_limit may, respectively, equal 10 Watts and 1 watt.
- the Delay variable may refer to a time period that the router 150 may wait after completion of auto-negotiation with the client 110 . Introducing such delay may enable the router 150 or the client 110 to stabilize the power consumed by its components before measuring the power values.
- the Rate variable may refer to data rate that may be negotiated between the link partners (the router 150 and the client 110 ) based on the order listed below:
- the Rate of data transfer in the above list depicts lowest data rate to highest data rate.
- the lowest data rate may be associated with lowest power consumption and highest data rate may be associated with maximum power consumption.
- the Rate value may be set to the highest value supported by the router 150 (e.g. 10 G/sec).
- the Max_Rate may refer to a maximum link rate supported by the router 150 . In one embodiment, the Max_Rate supported by the router 150 may equal 10 G/sec.
- the Max_Partner_Rate may refer to a maximum Link rate supported by the link partner, the client 110 .
- the Max_Partner_Rate may be initialized to Max_Rate value and updated each time a negotiation is completed successfully between the link partners, the router 150 and the client 110 .
- the Max_Partner_Rate may equal 10 G/Sec during initialization. However, after negotiation the Max_Partner_Rate may equal 1 GB/Sec as the maximum data rate supported by the client 110 may equal 1 GB/Sec.
- the Max_link_Rate may equal the lowest common denominator between the Max_Rate and the Max_Partner_Rate. In one embodiment, the Max_link_Rate may hold the maximum rate supported on the link. At the initialization, the Max_link_Rate may equal the Max_Rate.
- the first device such as the router 150 may negotiate the Rate with a second device such as the client 110 , which may be coupled to the router 150 .
- the router 150 may negotiate the data rate and other operating parameters with the link partner, the client 110 using the Rate value supported by the router 150 .
- the router 150 may update the Rate value based on the resulting value after the negotiation.
- the router 150 may update the Max_Partner_Rate with the data rate supported by the client 110 and the Max_link_Rate may be assigned a value equaling the lowest common denominator of the Max_Partner_Rate and Max_Rate.
- the router 150 may wait for a period equal to Delay and control passes to block 230 if the Delay is elapsed and loops back to block 210 to determine if Delay has elapsed.
- the router 150 may determine the actual power consumed.
- the processor 155 may compute the actual power consumed by the components of the router 150 and may store such values in pre-specified memory locations.
- a component supported by the network interface 158 may retrieve the values stored in the pre-specified memory locations.
- the router 150 may check if the actual power is greater than the Max_limit and Rate not equal to a rate at the power down state and control passes to bock 250 if the both the actual power is greater than the Max_limit and the Rate is not equal to power down and to block 270 otherwise.
- the router may decrease the Rate.
- the actual power consumed if the actual power consumed is greater than the Max_limit, the actual power consumed may be higher than the Max_limit and as a result of operating at higher power levels, the temperature levels may increase. Increase in the temperature levels above a pre-specified temperature limit may decrease the performance of electronic components. As a result, the network performance may decrease and the decrease in the Rate may in turn decrease the actual power consumed and the temperature levels.
- the router 150 may check if the Rate equals power down and control passes to block 240 if the Rate equals power down and to block 210 otherwise.
- the router 150 may determine whether the actual power is less than the Max_limit and Rate is less than power down value. Control passes to block 280 if the condition is true and to block 240 otherwise.
- the router 150 may increase the Rate as the actual power consumed is less than the Max_limit and the Rate is less than the power down value. Thereafter, control passes to block 210 .
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Environmental & Geological Engineering (AREA)
- Power Sources (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
A dynamic power management technique to optimize the performance to a pre-defined power or temperature limit. A computing system may comprise a performance management unit that may reconfigure the performance parameters, dynamically, based on the pre-defined power or temperature limit. Such an approach may provide performance enhancements as the power consumed by various components of the computing system may be reduced.
Description
- This application is a continuation of U.S. patent application Ser. No. 11/678,183 filed Feb. 23, 2007, now issued as U.S. Pat. No. 8,020,009 on Sep. 13, 2011.
- A computer system such as a client and a network device may operate with a limited power budget. As performance requirements increase the heat dissipated by these devices also increase. Static power management techniques may comprise placing the computer system in a ‘sleep’ or ‘suspend’ mode while the computer system is inactive for a pre-determined time. Also, some dynamic power management may enable the computer system to operate at a reduced power with reduced performance. Dynamic power management techniques may comprise, for example, frequency scaling and power supply scaling.
- The invention described herein is illustrated by way of example and not by way of limitation in the accompanying figures. For simplicity and clarity of illustration, elements illustrated in the figures are not necessarily drawn to scale. For example, the dimensions of some elements may be exaggerated relative to other elements for clarity. Further, where considered appropriate, reference labels have been repeated among the figures to indicate corresponding or analogous elements.
-
FIG. 1 illustrates an embodiment of acomputing system 100. -
FIG. 2 illustrates an embodiment of thecomputing system 100 supporting dynamic network re-configuration to meet a pre-defined power or temperature limit. - The following description describes a dynamic performance management technique. In the following description, numerous specific details such as logic implementations, resource partitioning, or sharing, or duplication implementations, types and interrelationships of system components, and logic partitioning or integration choices are set forth in order to provide a more thorough understanding of the present invention. It will be appreciated, however, by one skilled in the art that the invention may be practiced without such specific details. In other instances, control structures, gate level circuits, and full software instruction sequences have not been shown in detail in order not to obscure the invention. Those of ordinary skill in the art, with the included descriptions, will be able to implement appropriate functionality without undue experimentation.
- References in the specification to “one embodiment”, “an embodiment”, “an example embodiment”, indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
- Embodiments of the invention may be implemented in hardware, firmware, software, or any combination thereof. Embodiments of the invention may also be implemented as instructions stored on a machine-readable medium, which may be read and executed by one or more processors. A machine-readable medium may include any mechanism for storing or transmitting information in a form readable by a machine (e.g., a computing device).
- For example, a machine-readable medium may include read only memory (ROM); random access memory (RAM); magnetic disk storage media; optical storage media; flash memory devices; electrical, optical, acoustical or other forms of propagated signals (e.g., carrier waves, infrared signals, and digital signals). Further, firmware, software, routines, and instructions may be described herein as performing certain actions. However, it should be appreciated that such descriptions are merely for convenience and that such actions in fact result from computing devices, processors, controllers, and other devices executing the firmware, software, routines, and instructions.
- An embodiment of a
network environment 100 is illustrated inFIG. 1 . Thenetwork environment 100 may comprise aclient 110, arouter 150, anetwork 180, and aserver 190. In one embodiment, theclient 110, therouter 150, and theserver 190 may support dynamic performance management techniques to optimize the performance of the components of a computer system for a pre-determined power or temperature limit. - The
server 190 may generate a response after receiving a request from theclient 110. Theserver 190 may send the response to theclient 110 via thenetwork 180 and therouter 150. Theserver 190 may comprise, for example, a web server, a transaction server, or a database server. - The
network 180 may comprise one or more network devices such as a switch or a router, which may process and send the packets to an appropriate network device provisioned in a path to the destination system. Thenetwork 180 may enable transfer of messages between theclient 110 and theserver 190. The network devices of thenetwork 180 may be configured to support various protocols such as TCP/IP. - The
client 110 may comprise a desktop computer system, a laptop computer system, a personal digital assistant, a mobile phone, or any such computing system. In one embodiment, theclient 110 may couple to therouter 150. In one embodiment, theclient 110 may support dynamic performance management techniques to optimize the performance of various components of theclient 110 for a pre-determined power or temperature limit. Theclient 110 may be coupled to a link partner such as therouter 150 via a local area network (LAN). In one embodiment, theclient 110 may support hyper text transfer protocol (HTTP), file transfer protocols (FTP), and TCP/IP, and similar other protocols. - The
router 150 may enable transfer of packets between theclient 110 and theserver 190 via thenetwork 180. Therouter 150 may be coupled to a link partner such as theclient 110 via a local area network (LAN). In one embodiment, therouter 150 may comprise amemory 152, aprocessor 155, aperformance management unit 156, and anetwork interface 158. - In one embodiment, the
network interface 158 may receive the packets from theprocessor 155 and performance parameters from theperformance management unit 156. In one embodiment, thenetwork interface 156 may forward the packets based on the performance parameters provided by theperformance management unit 156. In one embodiment, thenetwork interface 158 may transfer the data at a rate determined by the performance parameters. - In one embodiment, the
processor 155 may generate a ‘manage signal’ that may initiate theperformance management unit 156 to determine the actual power consumed by the components of therouter 150. In one embodiment, theprocessor 155 may generate the ‘manage signal’ at pre-determined intervals of time. - In one embodiment, the
performance management unit 156 may determine the reconfiguration values of the performance parameters. In one embodiment, theperformance management unit 156 may determine the reconfigured performance values in response to receiving the mange signal at pre-determined intervals of time. In one embodiment, theperformance management unit 156 may store the actual power consumption values in thememory 152. In one embodiment, theperformance management unit 158 may comprise power or thermal sensors to detect the actual power consumed or the heat dissipated. - In one embodiment, the
performance management unit 156 may determine the reconfigured performance parameters as a function of the pre-defined power or temperature limits. In one embodiment, theperformance management unit 156 may support dynamic performance management techniques to optimize the performance of the components of therouter 150 for a pre-determined power or temperature limit. - In one embodiment, determination of the performance parameters at pre-defined intervals of time may allow the performance parameters to be re-configured dynamically. In one embodiment, the
performance management unit 156 may determine the reconfigured performance parameters and may provide the re-configured performance parameters to thenetwork interface 158. In one embodiment, the dynamic reconfiguration of the performance parameters of a first device based on the pre-defined power or temperature limit may provide performance enhancements. In one embodiment, the performance parameters of the first device may be determined based on the power consumption of the other devices in therouter 150. Such an approach may provide opportunistic performance enhancements in the first device while the other devices are operating at low power. - An embodiment of the
router 150 supporting dynamic performance management to optimize its performance for a pre-determined power or temperature limit is described inFIG. 2 . Also, in one embodiment, the dynamic performance management technique is described with reference to configuring network parameters such as data transfer rate based on the pre-defined power limit. However, such dynamic power management techniques may also be used in other scenarios such as management of processor activity. - In
block 205, a first device may initialize a set of variables after power-on. In one embodiment, therouter 150 may initialize a set of variables and the set of variables may comprise Max_limit, Min_limit, Delay, Rate, Max_Rate, Max_Partner Rate, and Max_link Rate. In one embodiment, the Max_limit and Min_limit may define the power or thermal limit. In one embodiment, the Max_limit and Min_limit may implement a hysterisis to avoid link rate fluctuations which may impact network performance. - In one embodiment, the Max_limit variable may equal the maximum pre-defined power or temperature limit value. If the actual power consumption value is above the Max-limit, the network performance may decrease. In one embodiment, the Min_limit variable may equal minimum pre-defined power or temperature limit value. In one embodiment, if the actual power consumption value is below the Min_limit, the network performance may increase. In one embodiment, the Max_limit and the Min_limit may, respectively, equal 10 Watts and 1 watt.
- In one embodiment, the Delay variable may refer to a time period that the
router 150 may wait after completion of auto-negotiation with theclient 110. Introducing such delay may enable therouter 150 or theclient 110 to stabilize the power consumed by its components before measuring the power values. - In one embodiment, the Rate variable may refer to data rate that may be negotiated between the link partners (the
router 150 and the client 110) based on the order listed below: - (1) Power Down; (2) 10M/Sec Half Duplex; (3) 10M/Sec Full Duplex; (4) 100M/Sec Half Duplex; (5) 100M/sec Full Duplex; (6) 1 G/Sec Half Duplex; (7) 1 G/Sec Full Duplex; (8) 10 G/sec Full Duplex (Full reach or reduced reach depending on cable quality).
- In one embodiment, the Rate of data transfer in the above list depicts lowest data rate to highest data rate. In one embodiment, the lowest data rate may be associated with lowest power consumption and highest data rate may be associated with maximum power consumption. After initialization, the Rate value may be set to the highest value supported by the router 150 (e.g. 10 G/sec). In one embodiment, the Max_Rate may refer to a maximum link rate supported by the
router 150. In one embodiment, the Max_Rate supported by therouter 150 may equal 10 G/sec. - In one embodiment, the Max_Partner_Rate may refer to a maximum Link rate supported by the link partner, the
client 110. In one embodiment, the Max_Partner_Rate may be initialized to Max_Rate value and updated each time a negotiation is completed successfully between the link partners, therouter 150 and theclient 110. In one embodiment, the Max_Partner_Rate may equal 10 G/Sec during initialization. However, after negotiation the Max_Partner_Rate may equal 1 GB/Sec as the maximum data rate supported by theclient 110 may equal 1 GB/Sec. - In one embodiment, the Max_link_Rate may equal the lowest common denominator between the Max_Rate and the Max_Partner_Rate. In one embodiment, the Max_link_Rate may hold the maximum rate supported on the link. At the initialization, the Max_link_Rate may equal the Max_Rate.
- In
block 210, the first device such as therouter 150 may negotiate the Rate with a second device such as theclient 110, which may be coupled to therouter 150. In one embodiment, therouter 150 may negotiate the data rate and other operating parameters with the link partner, theclient 110 using the Rate value supported by therouter 150. In one embodiment, therouter 150 may update the Rate value based on the resulting value after the negotiation. In one embodiment, therouter 150 may update the Max_Partner_Rate with the data rate supported by theclient 110 and the Max_link_Rate may be assigned a value equaling the lowest common denominator of the Max_Partner_Rate and Max_Rate. - In
block 220, therouter 150 may wait for a period equal to Delay and control passes to block 230 if the Delay is elapsed and loops back to block 210 to determine if Delay has elapsed. - In
block 230, therouter 150 may determine the actual power consumed. In one embodiment, theprocessor 155 may compute the actual power consumed by the components of therouter 150 and may store such values in pre-specified memory locations. In one embodiment, a component supported by thenetwork interface 158 may retrieve the values stored in the pre-specified memory locations. - In
block 240, therouter 150 may check if the actual power is greater than the Max_limit and Rate not equal to a rate at the power down state and control passes tobock 250 if the both the actual power is greater than the Max_limit and the Rate is not equal to power down and to block 270 otherwise. - In
block 250, the router may decrease the Rate. In one embodiment, if the actual power consumed is greater than the Max_limit, the actual power consumed may be higher than the Max_limit and as a result of operating at higher power levels, the temperature levels may increase. Increase in the temperature levels above a pre-specified temperature limit may decrease the performance of electronic components. As a result, the network performance may decrease and the decrease in the Rate may in turn decrease the actual power consumed and the temperature levels. - In
block 260, therouter 150 may check if the Rate equals power down and control passes to block 240 if the Rate equals power down and to block 210 otherwise. - In
block 270, therouter 150 may determine whether the actual power is less than the Max_limit and Rate is less than power down value. Control passes to block 280 if the condition is true and to block 240 otherwise. - In
block 280, therouter 150 may increase the Rate as the actual power consumed is less than the Max_limit and the Rate is less than the power down value. Thereafter, control passes to block 210. - Certain features of the invention have been described with reference to example embodiments. However, the description is not intended to be construed in a limiting sense. Various modifications of the example embodiments, as well as other embodiments of the invention, which are apparent to persons skilled in the art to which the invention pertains are deemed to lie within the spirit and scope of the invention.
Claims (11)
1. A network device comprising:
a processor, and
a performance management unit to, dynamically, reconfigure a rate at which data is transferred between the network device and a partner device coupled to the network device, wherein the rate is decreased if the rate is not equal to a power down value and if an actual power consumed by the network device is greater than a maximum limit, wherein the rate is reconfigured to limit temperature of the network device to be within a pre-specified temperature limit for the network device.
2. The network device of claim 1 further includes a plurality of thermal sensors to sense the temperature of the network device.
3. The network device of claim 1 , wherein the performance management unit to increase the rate if the actual power consumed by the network device is less than the maximum limit and if the rate is less than the power down value.
4. The network device of claim 3 , wherein the power management unit to, initially, negotiate the rate at which the data is to be transferred between the network device and the partner device.
5. The network device of claim 4 , wherein the power management unit to wait for a time period after negotiation of the rate is complete.
6. The network device of claim 1 , wherein the power management unit to check if the rate is equal to the power down value after decreasing the rate and then negotiate the rate with the partner device if the rate is not equal to the power down value.
7. The network device of claim 1 , wherein power management unit to set the rate to a maximum rate supported by the network device during initialization before negotiating the rate with the partner device.
8. The network device of claim 7 , wherein the power management unit to set a maximum partner rate of the partner device to the maximum rate during initialization before negotiating the rate with the partner device.
9. The network device of claim 8 , wherein the power management unit to update the maximum partner rate after the negotiation is completed successfully between the network device and the partner device.
10. The network device of claim 9 , wherein the power management unit to determine a maximum link rate as equal to a lowest common denominator between the maximum rate and the maximum partner rate.
11. The network device of claim 9 , wherein the maximum link rate is a maximum data transfer rate supported by a link provided between the network device and the partner device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/231,854 US20120005503A1 (en) | 2007-02-23 | 2011-09-13 | Dynamic performance management |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/678,183 US8020009B2 (en) | 2007-02-23 | 2007-02-23 | Dynamic performance management of network interface |
US13/231,854 US20120005503A1 (en) | 2007-02-23 | 2011-09-13 | Dynamic performance management |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/678,183 Continuation US8020009B2 (en) | 2007-02-23 | 2007-02-23 | Dynamic performance management of network interface |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120005503A1 true US20120005503A1 (en) | 2012-01-05 |
Family
ID=39717179
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/678,183 Expired - Fee Related US8020009B2 (en) | 2007-02-23 | 2007-02-23 | Dynamic performance management of network interface |
US13/231,854 Abandoned US20120005503A1 (en) | 2007-02-23 | 2011-09-13 | Dynamic performance management |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/678,183 Expired - Fee Related US8020009B2 (en) | 2007-02-23 | 2007-02-23 | Dynamic performance management of network interface |
Country Status (1)
Country | Link |
---|---|
US (2) | US8020009B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8433931B2 (en) | 2009-05-13 | 2013-04-30 | Microsoft Corporation | Integrating energy budgets for power management |
US9253800B2 (en) * | 2012-09-17 | 2016-02-02 | Intel Corporation | Apparatuses, systems, and methods for access configurations |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6219343B1 (en) * | 1997-07-29 | 2001-04-17 | Nokia Mobile Phones Ltd. | Rate control techniques for efficient high speed data services |
US6791942B2 (en) * | 2001-06-20 | 2004-09-14 | General Instrument Corporation | Dynamic ethernet power management |
US7046966B2 (en) * | 2001-08-24 | 2006-05-16 | Kyocera Wireless Corp. | Method and apparatus for assigning data rate in a multichannel communication system |
TWI234973B (en) * | 2003-07-01 | 2005-06-21 | Benq Corp | A data throughput adjusting method |
KR100771715B1 (en) * | 2003-09-02 | 2007-10-30 | 엘지전자 주식회사 | Apparatus and method for controlling data communication for wireless LAN |
US7616587B1 (en) * | 2004-04-14 | 2009-11-10 | Marvell International Ltd. | Methods and apparatus for performing reverse auto-negotiation in network communication |
US7653408B1 (en) * | 2004-10-08 | 2010-01-26 | Marvell International Ltd. | Self-adaptive transmit power control for wireless network |
US7177778B2 (en) * | 2004-11-30 | 2007-02-13 | Intel Corporation | Managing data processing rates at a network adapter using a temperature sensor |
US7562234B2 (en) * | 2005-08-25 | 2009-07-14 | Apple Inc. | Methods and apparatuses for dynamic power control |
US7603574B1 (en) * | 2006-12-14 | 2009-10-13 | Nvidia Corporation | Network interface speed adjustment to accommodate high system latency in power savings mode |
US7558874B1 (en) * | 2008-11-12 | 2009-07-07 | International Business Machines Corporation | Energy efficient ethernet via dynamic adapter driver link speed negotiation |
-
2007
- 2007-02-23 US US11/678,183 patent/US8020009B2/en not_active Expired - Fee Related
-
2011
- 2011-09-13 US US13/231,854 patent/US20120005503A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US8020009B2 (en) | 2011-09-13 |
US20080209020A1 (en) | 2008-08-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100934336B1 (en) | Entity-based distributed computing for device resources | |
US9231860B2 (en) | System and method for hierarchical link aggregation | |
US10789085B2 (en) | Selectively providing virtual machine through actual measurement of efficiency of power usage | |
US9223326B2 (en) | Distributed thermal management system for servers | |
CN108983938B (en) | Operational system, computer-implemented method, and medium when standby power fails | |
CN108984351B (en) | System, method and computer readable storage medium for voltage regulator burn-in testing | |
US8539077B2 (en) | Load distribution apparatus, load distribution method, and storage medium | |
TW201638800A (en) | Computing system, computer-implemented method, and non-transitory computer readable media thereof | |
TW201905727A (en) | Method and system for configuring multi-chassis link and storage medium thereof | |
US9531594B2 (en) | Self-configuring port system | |
EP2247027B1 (en) | System and method for enabling fallback states for energy efficient ethernet | |
TW201640271A (en) | Computer system and computer-implemented method for managing power consumption of storage subsystem | |
US10419545B2 (en) | Profiled wireless docking system | |
US8020009B2 (en) | Dynamic performance management of network interface | |
US11212375B2 (en) | System and method to provide heterogeneous protocols on network interface devices | |
US11593279B2 (en) | Graph-based data flow control system | |
US20190208023A1 (en) | Systems and methods for smb monitor dialect | |
US11061838B1 (en) | System and method for graphics processing unit management infrastructure for real time data collection | |
US11005782B2 (en) | Multi-endpoint adapter/multi-processor packet routing system | |
US10402357B1 (en) | Systems and methods for group manager based peer communication | |
US11163349B2 (en) | Adaptive power over ethernet powering system | |
US11822406B2 (en) | Powering patch panel system | |
US11599966B2 (en) | Frame rate optimization system | |
US20240231936A1 (en) | Resource-capability-and-connectivity-based workload performance system | |
US20240231912A1 (en) | Resource-capability-and-connectivity-based workload performance improvement system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |