摘要:
Some embodiments of the present invention provide a system that generates a utilization charge for a computer system. First, a set of performance parameters of the computer system are monitored. Next, a power utilization of the computer system is inferred based on the set of performance parameters and a power-utilization model. Then, a utilization charge is generated based on the power utilization of the computer system.
摘要:
Some embodiments of the present invention provide a system that measures a power efficiency of a computer system. During operation, the system collects telemetry data from a set of sensors within the computer system. Next, the system determines a power consumption of the computer system from the telemetry data and determines a number of input/output operations per second (IOPS) for the computer system from the telemetry data. Finally, the system computes an IOPS per watt metric from the power consumption and the number of IOPS.
摘要:
A system that controls one or more operating parameters in a computer system is presented. Until specified values for one or more operating parameters are achieved, the system performs the following operations. The system operates the computer system using a specified load profile. The system then determines whether the specified load profile produces the specified values for the one or more operating parameters. If the specified load profile does not produce the specified values for the one or more operating parameters, the system adjusts the specified load profile, which involves using a pulse-width modulation technique to adjust a duty cycle between a first workload and a second workload.
摘要:
One embodiment of the present invention provides a system that estimates residual life of a software system under a software-based failure mechanism. During operation, the system first constructs a prognostic database for the software-based failure mechanism based on a plurality of software systems of the same type as the software system, wherein the prognostic database includes a set of prognostic readings associated with the software-based failure mechanism from the plurality of software systems. Note that a given prognostic reading in the prognostic database comprises: (1) a symptom index, which is a function of one or more variables associated with the software-based failure mechanism; and (2) a residual life, which is the remaining time to a failure under the software-based failure mechanism. Next, the system obtains a symptom index value from the software system which is being monitored. The system then estimates a residual life for the software system under the software-based failure mechanism by comparing the symptom index value with the prognostic readings in the prognostic database.
摘要:
A system that select tests to exercise a given computer system is described. During operation, the system tests the given computer system using a set of tests, where a given test includes a given load and a given cycling time selected from a range of cycling times. Moreover, for the given test, the system monitors a stress metric in the given computer system. Additionally, the system selects at least one of the tests from the set of tests to exercise the given computer system based on the monitored stress metric.
摘要:
A system that monitors telemetry from a host computer system to detect degradation in a remote storage device. During operation, the system monitors performance parameters from a host computer system which accesses the remote storage device, wherein the performance parameters relate to the interactions between the host computer system and the remote storage device. The system then determines whether the monitored performance parameters have deviated from predicted values for the performance parameters. If so, the system generates a signal indicating that the remote storage device has degraded.
摘要:
One embodiment of the present invention provides a system that monitors system-calls to identify runaway processes within a computer system. First, the system monitors system-calls on the computer system during runtime, to generate a trace of system-calls made. Then, the system analyzes the trace to detect runaway processes.
摘要:
A method for inferring an altitude of a computing device, involving monitoring variable data associated with a plurality of variables measured within the computing device, inferring the altitude of the computing device using the measured plurality of variables in a multivariate correlation function, and controlling operation of the computing device based on the inferred altitude.
摘要:
A system (100) for campaign planning includes a memory (106) operable to store at least two slab values (132) for each of a plurality of slabs (108). The slab values (132) for a slab are associated with at least two properties of the slab (108). The memory (106) is also operable to store at least one preference value (142) identifying a relative importance between the properties of the slabs (108). The system (100) also includes one or more processors (128) collectively operable to generate a sort value (400) for each of the slabs (108). The sort value (400) depends at least partially on the slab value (132) associated with the slab (108) and the preference value (142). The processor (128) is also operable to allocate the slabs (108) to a plurality of rounds (200) in a campaign (250). The slabs (108) are allocated in an order depending at least partially on the sort values (400) associated with the slabs (108).
摘要:
A system for controlling energy usage in a server having a processor, where the system includes a memory for storing energy cost information, and a controller for determining a transaction rate for the processor. The controller is also for determining a cumulative of energy expended by the server based on the determined transaction rate for each of a number of available power level states (P-states) for operation of the processor, and for selecting one of the available P-states for operation of the processor based on the determined cumulative energy expended and the stored energy cost information.