189 results about "Performance tuning" patented technology

An electronic amusement device and a method for operating the device are disclosed. In accordance with one embodiment, a slot machine receives an initiation signal to initiate game play at the slot machine. The slot machine conducts a game in response to the initiation signal. The slot machine determines whether a propagation criteria has been achieved and outputs a propagation signal, indicating a performance adjustment, to at least one other slot machine. In accordance with a second embodiment, a slot machine that stores a performance level is disclosed. The slot machine receives a propagation signal indicating a performance adjustment, and the slot machine adjusts the performance level accordingly. A slot server and method for operating the server are also disclosed.

A file system may employ an enhanced or performance-adjusted allocation scheme when storing data to multiple storage devices. A file system may monitor one or more performance characteristics of storage devices. The file system may, in response to storage requests, select one or more of the storage devices for storing data associated storage requests based on differences among the respective monitored performance characteristics for the storage devices. Additionally, the file system may determine an allocation pattern for storing data to the storage devices and may modify the determined allocation pattern based on a detected change in the monitored performance characteristics of the storage devices. Further, the file system may store data based on both the allocation pattern and on data characteristics associated with a data storage request. The file system may also incorporate input specifying either new performance characteristics or a new allocation pattern.

In a multi-user frequency domain spreading downlink MC-CDMA system. a group of sub-carriers can be replaced by an equivalent sub-carrier of a conventional OFDM modem for purposes of resource allocation to improve the system performance. The chips for a given user are spread only within the group. Confinement insures synchronization between different users' chips that is essential to the recovering and separation of user symbols at the receiver. There is no limit imposed on the group size, which permits different spreading code lengths to be used for different scenarios or for performance tuning.

Documents or document sets may be scored to reflect a value of an action, such as a selection for example, when an ad is served with the document (or a document belonging to a document set). A cost associated with the action with respect to an ad that was served with a document may then be adjusted using the score. For example, ad scores may be accepted or determined, and a document may be scored using the ad scores when served with the document and ad scores across a collection of documents to generate a document score. Each of the ad scores may indicate a value of an action with respect to an ad, such as a conversion rate, or a return on investment for an ad selection for example. Document scores used in this way may help advertisers get a more consistent cost per conversion, or return on investment, without requiring them to enter and manage various offers for various documents and / or various ad serving systems having various conversion rates or returns on investment.

Provided are a method, system, an program for tuning a database query. Provided are a base access plan to implement the database query and statistics including information on a layout of the database against which the query will be executed. The statistics are processed to determine performance problems with the base access plan as part of a first analysis of the base access plan and the determined performance problems are processed as part of a second analysis to provide an analysis of the determined performance problems and processing cost of the base access plan. Recommendations are generated to tune the base access plan to improve performance.

In a storage subsystem, performance tuning is performed with respect to whole logical devices including external storage subsystems that are not directly connected to host computers. Physical storage units presented by the external storage subsystems are defined as logical devices of the storage subsystem itself, and I / O processing requests from the host computers are relayed to those logical devices. At the time of relaying, I / O processing conditions are monitored. When there exists an external storage subsystem whose load is high, then, operating conditions of ports and processors are examined. In the case where the load can be reduced by changing the configuration of those ports and processors, the configuration is changed to reduce the load. In the case where the load can not be reduced, data is migrated from a logical device having a high load to a logical device having a sufficient performance.

A filter executing on a processor monitors instructions executing on the processor to identify instructions that will benefit from performance tuning. Filtering instructions before analysis for performance tuning reduces overhead by identifying candidates for performance tuning with low cost monitoring before expending resources on analysis so that only instructions that will have performance tuning are analyzed. Reducing overhead for performance tuning makes performance tuning practical in a dynamic optimization environment in which instructions and their effective addresses change over time.

Semiconductor device circuits and methods are provided for adjusting core processor performance based on usage metrics. Metric detection and adjustment are performed in digital logic hardware guided by registers providing maximum and minimum frequency settings, without intervening input from system software or firmware, thus greatly speeding the processor performance adjustment. Power-performance drivers provide applications or the operating system ability to specify maximum and minimum frequency requirements.

In at least some embodiments, a system comprises a processor and a memory coupled to the processor. The memory stores processor performance utility instructions and performance adjustment instructions. When executed, the processor performance utility instructions are configured to cause activities of the processor to be counted and to cause a processor utilization value to be determined based on the counts. When executed, the performance adjustment instructions are configured to adjust the processor utilization value based on a comparison of the processor's current operating frequency and maximum operating frequency.

An object of the present invention is to provide a storage system which is shared by a plurality of application programs, wherein optimum performance tuning for a cache memory can be performed for each of the individual application programs. The storage system of the present invention comprises a storage device which provides a plurality of logical volumes which can be accessed from a plurality of application programs, a controller for controlling input and output of data to and from the logical volumes in response to input / output requests from the plurality of application programs, and a cache memory for temporarily storing data input to and output from the logical volume, wherein the cache memory is logically divided into a plurality of partitions which are exclusively assigned to the plurality of logical volumes respectively.

Embodiments of the invention provide systems and methods for providing services related to managing computer systems. More specifically, embodiments of the present invention provide for providing performance tuning and benchmarking services to remote computer systems. Generally speaking, the service can provide functions to help customers maintain a consistent performance of their databases with minimal downtime by pro-actively addressing issues or bottlenecks with periodic assessments, monitoring of performance metrics that are causing stress throughout the term of the service, reporting violations of agreed upon thresholds for performance, and reactively helping customers address performance issues that arise with reactive tuning

A multi-processor system and a performance adjustment method thereof are disclosed. The multi-processor system includes a first processing unit and a second processing unit, the performance adjustment method includes: first, detecting the load of each processing unit to obtain corresponding detected data; then, determining whether one of the processing units has the most load; finally, if the first processing unit has the most load, increasing the power supply to the first processing unit.

Techniques for capturing samples of session activity in a database are provided. Session activity for active sessions is recorded at certain times over a time period. Accordingly, a sample of session activity is taken for sessions in a database.

A device and corresponding method for enabling a user to accurately control, monitor, and evaluate performance of a vehicle. The system includes a portable programmable computer device that a user can readily install by plugging it into a diagnostic connector port of the vehicle for providing the controlling, monitoring, and evaluating functions. The present invention enables a user to perform performance tuning of the engine, provides dynamometer type functions such as horsepower and torque measurements, and provides a virtual drag strip function for accurately measuring acceleration data. According to an alternative embodiment, a monitor mode is provided for enabling the user to monitor selected characteristics of the vehicle and a diagnostics mode is provided for providing for the identification and display of diagnostic trouble codes (DTCs) with informative text descriptions. The present invention also enables the clearing of selected DTCs without requiring expensive customized equipment for that purpose.

The invention relates to the adaptation of a Mazda RENESIS rotary engine to use as a marine vessel propulsion system. It is an object of present invention to enhance the power and torque bands of the rotary engine and shift them to the midrange of engine speeds that are most applicable in direct drive systems. Peak torque of 300 ft-lbs. at 3750 rpm and Peak power of 325 hp at 5800 rpm have been realized. The invention comprises various engineering developments to increase performance. These developments include modifications to standard engine components such as intake and exhaust manifolds as well as addition of customized performance tuned components including a turbocharger, an aftercooler, an oil cooler, and an engine control management system. Improvements to engine mounting and power transmission mechanisms are also described.

The invention discloses a grinding and polishing pad for a cured grinding material based on thermal initiation curing and a preparation method thereof, applied to the fields of precise and super precise grinding and polishing processing. The grinding and polishing pad is characterized in that a grinding material layer (1) contains the following components in percent by mass: 1-40 percent of grinding material with the granularity of 50 nanometers to 40 micrometers, 10-60 percent of prepolymer of polyacrylic ester, 0.5-7 percent of free radical / anions / oxidation-deoxidation thermal initiating agent, 0-2 percent of grinding material surface modifying and dispersing agent, 0-5 percent of accelerator, 0-20 percent of performance tuning additive and 5-40 percent of activated thinner of esterified acrylic acid. The preparation method of the grinding and polishing pad comprises the following steps of: (1) sufficiently and uniformly mixing raw materials; (2) preparing a polishing pad mould and preparing an abrasive particle layer by mould pouring, heating and curing; and (3) bonding the grinding material layer with an elastic or (and) rigid layer by using a bonding agent according to requirements to obtain the grinding and polishing pad required by the invention. The grinding and polishing pad prepared by adopting a thermal initiation curing method has stable processing performance, high processing efficiency and functions of hydrophily and self-correction and is suitable for precise and super precise processing.

An apparatus and method for micro-tuning an effective clock frequency of a core in a microprocessor. The apparatus includes a microprocessor having at least one core with logic configured to transition between states, a clock signal coupled to the microprocessor, the clock signal having a predetermined clock frequency based on a worst-case clock frequency and a predetermined clock period. The apparatus further including at least one voltage drop sensor coupled to the core, the sensor being configured to generate an output signal for detecting a voltage drop in the core and to determine whether or not the output signal is detected within the clock period and, if the output signal is not detected, the sensor dynamically adjusts the clock period of the clock signal provided to the core to allow more time to complete state transitions, such that, dynamically adjusting the clock period effectively changes an effective core clock frequency.

A middle layer in business applications is provided to wrap all the database management operations generically, to store changed data temporarily, to validate and lock the data before updating the database, and to synchronize the data change and unlock it as a whole when a commit method is called. In embodiments, only six generic methods are needed for all data interactions. Transaction, isolation level, exception format, and performance tuning operations can be performed centrally in the six generic methods. A buffer section may be created in the middle layer. Operations such as insert, update, delete, and select are performed on data stored in the buffer. Buffered data may then be stored in a data storage device.

An application tuning server-side component, and a method, system, and computer program product for application tuning, provides application deployers with a single, unified facility for modifying the relevant parameters to achieve optimal performance, which makes the application tuning process simpler and easier, so that it can be performed by less skilled individuals and yet be performed more quickly by those less skilled individuals. A method of tuning an application deployed in an application server comprises the steps of deploying the application in the application server, invoking an application tuning server-side component operable to retrieve information relating to application parameters to be tuned, receiving specifications of values of application tuning parameters, and tuning the application using the received specified parameter values. The application tuning server-side component may be implemented using Java Management Extensions.

A system and method are described for separating the bulk connections for FETs on a semiconductor wafer from the supply rails, testing the wafer to determine if a shift in the threshold voltage, VT, of certain devices within the wafer, as defined by the bulk-wells, can remove an AC defect in the IC circuit, and tailoring the voltage or voltages applied to the bulk nodes, post-manufacture, such that the integrated circuit meets its performance targets or is sorted to a more valuable performance level. The method requires generating a gate level netlist of the IC's circuitry and performing timing calculations on these circuit netlists using static timing analyses, functional delay simulations, circuit activity analyses, and functional performance testing. The failures are then correlated to respective IC circuits, worst case slack circuits are investigated, and proposed changes to the threshold voltages are employed in the hardware.

A system, method, and program product is disclosed to monitor multiple applications, each application configured to process part of a TCP / IP-based transaction. The applications communicate with one another by way of a TCP / IP protocol. Each application is further configured to generate one or more events associated with the TCP / IP-based transaction. Each application has associated therewith an event management module configured to acquire and deliver event information associated with their respective events to an event bus, to minimize overhead in managing the events. A monitoring module communicates with the event bus to receive and organize the event information to provide an integrated end-to-end view of the TCP / IP-based transaction.

A system and method for testing memory management functions of a data processing system. A controller is configured to start and monitor progress of one or more programs, and each of the one or more programs is configured to start a number of threads as specified by input parameter values. At least one or more of the threads are configured to create, modify, and delete one or more memory areas. A feedback activity measures performance characteristics of the data processing system while the one or more threads are executing and selectively adjusts the parameter values in response to the performance characteristics relative to target performance characteristics.

A method is disclosed for operating a RF receiver of a communications equipment, as is circuitry for implementing the method. The method includes, while operating under the control of a data processor of the communications equipment, generating a calibration signal; injecting the calibration signal into a low noise amplifier (LNA) of the RF receiver; measuring a downconverted response of the receiver at a plurality of different frequencies of the calibration signal, or measuring the downconverted response of the receiver at a plurality of different LNA tuning combinations using a fixed calibration frequency, and at least one of tuning a resonance frequency of at least one LNA resonator based on the measured downconverted response so as to compensate at least for variations in component values that comprise the at least one resonator, or adjusting the linearity of the receiver.

The invention discloses an automatic performance identification tuning system based on an Oracle database, belonging to the technical field of database management. The system comprises a performance acquisition module, a performance analysis module and a performance tuning module and is characterized in that: the performance tuning module comprises an SQL (structured query language) sentence-level tuning module, an instance-level tuning module, a logic object-level tuning module and a system-level tuning module, wherein the SQL sentence-level tuning module, the instance-level tuning module, the logic object-level tuning module and the system-level tuning module in the performance tuning module are connected with the performance analysis module respectively; and the performance analysis module is connected with the performance acquisition module. The system disclosed by the invention has the beneficial effects that: intelligent analysis and tuning on the Oracle database are realized, the traditional optimization method simply using manual and artificial judgment is changed, the DBA is released from the complicated operation and maintenance environment, the operational stability of the database is greatly improved, and the labor cost is saved.

Apparatus, systems, and methods may operate to calculate the cryptographic throughput for a gateway server, calculate the input-output throughput for the gateway server, and responsive to determining that the cryptographic throughput is less than the input-output throughput, add nodes to the gateway server cryptographic buffer queue when a projection indicates that the sum of data remaining in the cryptographic buffer queue and data available to enter the cryptographic buffer queue is greater than a preselected watermark value. Additional apparatus, systems, and methods are disclosed.

In a multi-user frequency domain spreading downlink MC-CDMA system, a group of sub-carriers can be replaced by an equivalent sub-carrier of a conventional OFDM modem for purposes of resource allocation to improve the system performance. The chips for a given user are spread only within the group. Confinement insures synchronization between different users' chips that is essential to the recovering and separation of user symbols at the receiver. There is no limit imposed on the group size, which permits different spreading code lengths to be used for different scenarios or for performance tuning.

A measurement facility is provided for capturing and presenting fine-grained usage information for adapter functions in an input / output subsystem. Adapter specific input / output traffic is tracked on a per function basis and the results are dynamically presented to the user. This information is useful for performance tuning, load balancing and usage based charging, as examples.

An object of the present invention is to provide a storage system which is shared by a plurality of application programs, wherein optimum performance tuning for a cache memory can be performed for each of the individual application programs. The storage system of the present invention comprises a storage device which provides a plurality of logical volumes which can be accessed from a plurality of application programs, a controller for controlling input and output of data to and from the logical volumes in response to input / output requests from the plurality of application programs, and a cache memory for temporarily storing data input to and output from the logical volume, wherein the cache memory is logically divided into a plurality of partitions which are exclusively assigned to the plurality of logical volumes respectively.

A method, apparatus, and computer program product for monitoring the performance of a system. The mechanism of the present invention provides an interface in the form of a graphical user interface (GUI) to communicate multiple layers of system performance data to an operator. An operator monitors this display of information and uses it to determine how to adjust the system to optimize system performance. This mechanism of the present invention provides immediate feedback to an operator by displaying a trail of metric points, wherein the metric points indicate the status of system performance over a period of time. In this manner, the display mechanism of the present invention immediately conveys to an operator whether the system is operating within predefined margins, the results of performance adjustments made to the system, as well as predictions or trends for the system.

Techniques for capturing samples of session activity in a database are provided. Session activity for active sessions is recorded at certain times over a time period. Accordingly, a sample of session activity is taken for sessions in a database.