Abstract:
A method for monitoring performance of an application system which is distributed across a plurality of network connected nodes, comprising: generating a hierarchical model for the system, the model having a plurality of levels, each level including components of a span specific to that level; mapping the system onto the model according to a network topology of the system; monitoring network traffic between the plurality of network connected nodes of the system to gather network traffic data; assembling the network traffic data into application messages; correlating the application messages into sets of one or more application messages that are causally associated in accordance with the model, wherein the sets of causally associated application messages constitute transactions corresponding to a lowest level of the model; and, generating records of individual transactions occurring within the system for at least the transactions corresponding to the lowest level of the model.
Abstract:
Transaction-segregated metrics are obtained for component invocations of different transactions of an application. Corresponding tree data structures are maintained by an agent and a manager which describe sequences of invoked components of the different transactions. The start and end of each component are each represented by a node (702, 704, 706, 708, 710, 712, 714, 716, 718, 720, 722, 724, 726, 728, 730, 732, 734, 736, 738, 740) in each branch (agt1-branch1 - agtl-branch6, agt2-branchl, agt2-branch2) of the tree data structure. Each transaction is identified by matching a branch to a transaction trace. Gatherers (1200, 1202) are linked to one or more nodes (706, 724) to collect the transaction-segregated metrics. For example, metrics can be gathered separately for component invocations in different transactions. Metrics can also be gathered together for instances of different components in one or more transactions. A user interface includes a directed graph having vertices connected by edges. Edge portions are visually distinguished from one another based on the metrics of the gatherers. Each edge portion can be associated with one or more of the gatherers.
Abstract:
An administration system for use within a server system is provided. The administration system comprises a computing system that is inserted in the server system, the computing system having a controller that assumes control over the communications bus. A corresponding method for embedded autonomic administration of a server system is also provided.
Abstract:
An efficient, cycle-accurate processor execution simulator models a target processor by executing a program execution image comprising instructions having run-time dependencies resolved by execution on an existing processor compatible with the target processor. The instructions may have been executed upon a processor in an I/O environment too complex to model. In one embodiment, the simulator executes instructions that were directly executed on a processor. In another embodiment, a markup engine alters a compiled program image, with reference to instructions executed on a processor, to remove run-time dependencies. The marked up program image is then executed by the simulator. The processor execution simulator includes an update engine operative to cycle-accurately simulate instruction execution, and a communication engine operative to model each communication bus of the target processor.
Abstract:
A system for enrollment processing optimization for controlling batch job processing traffic transmitted to a mainframe computer includes an enrollment data input operations system operatively coupled to the mainframe computer and configured to provide a universal front end for data entry of enrollment information. Enrollment records based on the enrollment information is then created. A database system stores the enrollment records, and a workflow application module operatively coupled to the database system is configured to manage processing of the enrollment records and manage transmission of the enrollment records to the mainframe computer for batch processing. A batch throttling control module operatively coupled to the workflow application module and to the mainframe computer controls the rate and the number of enrollment records transmitted by the workflow application module to the mainframe computer for batch processing.
Abstract:
A method and apparatus is provided for monitoring operations of a specified transaction server that has an associated network topology. One embodiment comprises the steps of defining a plurality of zones within the network topology, and assigning one or more monitoring agents to each of the zones, wherein each agent is adapted to selectively run synthetic transactions with the specified server. The method further comprises monitoring results of successive synthetic transactions carried out by the agents, in order to detect any errors associated with the successive transactions. In response to detecting a performance or an availability problem, selectively, that is associated with a particular synthetic transaction run by a particular one of the agents, one or more agents is dynamically scheduled to run synthetic transactions, wherein each scheduled transaction has a specified relationship with the particular transaction.
Abstract:
A method of selecting one server (S1 - S4) out of a server set for the purpose of requesting one or more service/s, for example related to an internet- and session-based application, each of the servers (S1 - S4) of the server set being capable of supporting the service/s, whereby a status vector is maintained which comprises a timestamp value (t1- t4) indicating a point of time at which the status of the corresponding server (S1 - S4) is determined, to improve over existing server selection policies in its ability to reduce transaction control times.
Abstract:
In certain embodiments, a method for modeling interactions with a computer system includes collecting interaction information for each of a number of interaction sessions with a computer system, each interaction session being associated with a corresponding agent system and including one or more states and one or more state transitions. The interaction information for an interaction session includes data for the one or more states and the one or more state transitions of the interaction session. The method further includes, for each of the interaction sessions, identifying the one or more states encountered during the interaction session based on the collected interaction information and generating, based on the one or more states encountered during the interaction session, a trace of the interaction session. The method further includes generating, based on the traces of the interaction sessions, a model of the interaction sessions, the model including the traces for each of the interaction sessions.
Abstract:
Conventionally, a web site stores Internet data indicating file access status for the files that have been accessed in response to requests from web browsers. Unfortunately, the Internet data are kept as a set of separate and non-correlated data records that are chronologically arranged according to the times at which the requests have been received and processed. Consequently, the Internet data are not arranged meaningful to management and business operation. The present invention is able to correlate web page files (HTML, SHTML, DHTML, or CGI files) with individual users. The present invention is also able to correlate web page files with user sessions during which users perform their business transactions over the Internet.
Abstract:
A system and method for metering usage of a data processing system and scaling system performance is disclosed. In one embodiment, an authorization key is purchased that specifies both a baseline performance level and a ceiling performance level. After the key is installed on the data processing system, the system performance level is monitored and averaged over predetermined time periods. The customer is charged on a “pas-as-you-go” basis for any time periods during which the average performance level exceeds the baseline performance level. Performance of the data processing system is not allowed to exceed the ceiling level obtained with the authorization key. In one embodiment, the baseline level may be set to zero so that all performance consumption is purchased by the customer as it is utilized. A report may be generated that includes data upon which analysis of the measured processor utilization data may be performed.