Hewlett-packard Company

Hewlett-packard Development Company, L.p.

Gerald T Wade

Ira Cohen

John M Green

Julie Anna Symons

A method for analyzing a latency of a transaction performance is provided. The method includes receiving first transaction latency data which includes a transaction latency of a transaction and a first plurality of latency components that contribute to the transaction latency, receiving a definition of normality for the transaction latency, determining whether the transaction latency is normal or abnormal based at least on the definition of normality, upon the determining that the transaction latency is abnormal, determining whether there is a sufficient amount of the first transaction latency data based on a predefined criterion, upon the determining that the amount of the first transaction latency data is sufficient, computing a normal latency for each of the first plurality of latency components; and ranking the first plurality of latency components based on a degree of abnormality of each of the first plurality of latency components, which is based on the computed normal latency for the each latency component.

Analyzing and application or service latency

A performance and measurement system can be used to evaluate a computing system. An operating system of the computing system produces performance data about individual processes running on the computing system. The performance data is collected and reduced by combining selected data from the performance data into standardized metrics to produce collected and reduced performance data. The collected and reduced performance data pertains to groups of the individual processes. The collected and reduced performance data is logged into at least one data file. The performance data is discarded.

Performance and measurement system which logs reduced data pertaining to

A performance and measurement system for a computing system is presented. Performance data produced by the computing system is collected and reduced before being logged. Once the data is logged, the data may be transported to a workstation and accessed by a user. In the preferred embodiment, the collected and reduced data is logged into three files. The first file is a global data file into which is logged information about the computing system as a whole. The second file is a process data file into which is logged information about selected processes. The third file is a workload data file into which is logged information about classes of processes. Information about processes are logged into the process data file when a process does something 'interesting' during a specified interval. For example, a process may be considered to have done something interesting when the process is started, is terminated or uses a predetermined amount of a computing system resource during the specified interval.

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Auburn, CA, United States of America

Gerald T Wade