Heinz Mielimonka Leitender Systemberater STCC Nürnberg Oracle Corporation

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2 Heinz Mielimonka Leitender Systemberater STCC Nürnberg Oracle Corporation

3 OracleAS (9iR2 nach 10g) Performance Überwachung, Steuerung

4 Performance Capacity, Scalability, Performance

5 Performance Application BestPractice-MISC-3: PERFORM INCREMENTAL PERFORMANCE EVALUATION DURING THE DEVELOPMENT CYCLE. Do not wait until the end of the project to do a test cycle. Performance tests should be run regularly after each stage of development. New performance test suites should be added as new features or functions are implemented. If possible, run performance regression tests regularly to compare performance results. Quelle:

6 Performance Application BestPractice-MISC-4: RUN YOUR PERFORMANCE TESTS ON SYSTEMS THAT WILL SIMULATE YOUR PRODUCTION ENVIRONMENT. Developers commonly run their functional tests in single-user mode on their workstation or their desktop, which usually has only one CPU. This setup rarely represents the production environment, and it is not adequate for running performance tests. If the application is intended to be used by a large number of concurrent users running on multiple processors, simulate the production environment with a representative workload to study the performance impact. Quelle:

7 Performance Application BestPractice-MISC-5: UNDERSTAND HOW TO CONFIGURE YOUR TEST DRIVER AND ANALYZE THE RESULT. Commercial drivers used to simulate HTTP requests can be very effective, but they are often complicated to configure. We have encountered situations where customers set up their driver incorrectly, did not know how to interpret the results, ended up drawing the wrong conclusions, and wasted valuable time in locating the real problems. Quelle:

8 Performance Application BestPractice-MISC-6: ASSIGN SOMEONE WHO IS EXPERIENCED IN RUNNING AND ANALYZING PERFORMANCE TESTS. Running performance tests is not a push-button job that can be delegated to an inexperienced engineer. It requires someone who has knowledge and experience with operating systems and databases, and who understands the application that is to be analyzed. Quelle:

9 Performance Application SPECjApp 2002 Multiple Node Best Performance on Linux and Best Price/Performance Performance 1, TOPS (Total Operations Per Second) price-to-performance ratio of $ USD/TOPS Dual Node Best Performance and Best Price/Performance Performance: TOPS (Total Operations Per Second) price-to-performance ratio of $ USD/TOPS Benchmarks & Awards Quelle:

10 Performance Overview Application Factors in Improving Performance Performance spans several areas: Sizing and configuration: Determining the type of hardware needed to support your performance goals. Parameter tuning: Setting configurable parameters to achieve the best performance for your application. Performance monitoring: Determining what hardware resources are being used by your application and what response time your users are experiencing. Troubleshooting: Diagnosing why an application is using excessive hardware resources, or why the response time exceeds the desired limit. Quelle:

11 Monitoring Oracle Application Application Oracle Enterprise Manager Application Control Oracle HTTP (OHS) Oracle Application Containers for J2EE (OC4J) and Applications running under OC4J Oracle Application Web Cache Oracle Application Portal (OracleAS Portal) Oracle Application Built-in Performance Metrics Monitor the duration of important phases of Oracle HTTP request processing. Collect status information on Oracle HTTP requests. For example, you can monitor the number of requests being handled at any given moment. Monitor the number of active servlets, JSPs, EJBs, and EJB methods. Monitor the time spent processing an individual servlet, JSP, EJB, or EJB method. Monitor the sessions and JDBC connections associated with servlets, JSPs, EJBs, or EJB methods. Monitor OC4J JMS events and status. Native Operating System Performance Commands Network Performance Monitoring Tools Quelle:

12 Oracle Application Built-in Monitoring Commands Application AggreSpy is a pre-packaged servlet that reports performance metrics for an Oracle Application instance. You can only run AggreSpy when an OC4J instance is configured to support it. By default the OC4J instance named home supports AggreSpy. dmstool Allows you to monitor a specific performance metric, a set of performance metrics, or all performance metrics. Options allow you to specify a reporting interval to report the requested metrics. This command also allows you to show a text report listing all the built-in performance metrics available on the site. dmstool is located in the $ORACLE_HOME/bin directory. Spy is a pre-packaged servlet that reports performance metrics for OC4J standalone. Spy reports performance data for an OC4J process. Quelle:

13 Oracle Application Built-in Monitoring Commands Application Quelle:

14 Application Control Status Metrics Page Application Quelle:

15 Application Control OC4J Instance Display Application Quelle:

16 Optimizing Oracle HTTP Application TCP Tuning Parameters (for UNIX) Network Tuning (for Windows) Configuring Oracle HTTP Directives Oracle HTTP Logging Options Oracle HTTP Security Performance Considerations Oracle HTTP Performance Tips Setting mod_oc4j Load Balancing Policies Quelle:

17 Optimizing J2EE Applications In OC4J Application OC4J J2EE Application Performance Quickstart Improving J2EE Application Performance by Configuring OC4J Instance Setting Java Command Line Options (Using JVM and OC4J Performance Options) Setting Up Data Sources Performance Issues Setting server.xml Configuration Parameters Improving Servlet Performance in Oracle Application Improving JSP Performance in Oracle Application Improving EJB Performance in Oracle Application Improving Web Services Performance in Oracle Application Improving BC4J Performance in Oracle Application Improving JAAS (JAZN) Performance in Oracle Application Using Multiple OC4Js, Limiting Connections and Load Balancing Performance Considerations for Deploying J2EE Applications Quelle:

18 Optimizing OracleAS Web Cache Application Use Two CPUs for OracleAS Web Cache Configure Enough Memory for OracleAS Web Cache Make Sure You Have Sufficient Network Bandwidth Set a Reasonable Number of Network Connections Tune Network-Related Parameters Increase Cache Hit Rates Check Application Web and Web Cache Settings to Optimize Response Time Quelle:

19 Optimizing PL/SQL Performance Application PL/SQL Performance in Oracle Application - Overview Process-Based and Thread-Based Operation in Oracle HTTP Performance Tuning Issues for mod_plsql Performance Tuning Areas in mod_plsql Using Caching with PL/SQL Based Web Applications Tuning File System Cache to Improve Caching Performance Oracle HTTP Directives Quelle:

20 Performance Tuning Considerations Oracle Forms Built-in Optimization Features of Forms Services Tuning OracleAS Forms Services Applications Quelle:

21 Built-in Optimization Features of Forms Services Oracle Forms Forms Services Web Runtime Pooling Minimizing Client Resource Requirements Minimizing Forms Services Resource Requirements Minimizing Network Usage Maximizing the Efficiency of Packets Sent Over the Network Rendering Application Displays Efficiently on the Client Quelle:

22 Tuning OracleAS Forms Services Applications Oracle Forms Location of the Oracle Application Forms Services with Respect to the Data Minimizing the Application Startup Time Reducing the Required Network Bandwidth Other Techniques to Improve Performance Examine timers and replace with JavaBeans. Consider localizing the validation of input items. Reduce the application to many smaller forms, rather than one large form. Avoid unnecessary graphics and images. Web Cache and Forms Integration (load balancer) Quelle:

23 OracleAS Forms Services Oracle Forms Quelle:

24 Performance & Scalability Testing Oracle Forms Intercept is a tool developed in-house by Oracle Corporation for load testing web-deployed Oracle Forms applications. MERCURY INTERACTIVE S LOADRUNNER Quelle:

25 Überwachung, Steuerung Enterprise Manager

26 Oracle Process Manager and Notification (OPMN) Enterprise Manager Oracle Process Manager and Notification (OPMN) manages and monitors most Oracle Application components. It is installed and configured in every middle-tier and Infrastructure installation and is essential for running Oracle Application. Processes in Instance: biforms.myhost.myco.com ias-component process-type pid status Wireless OC4J_Wireless 404 Alive Discoverer Preference 403 Alive Discoverer OAD 405 Alive Discoverer OSAgent 402 Alive WebCache WebCacheAdmin 401 Alive WebCache WebCache 400 Alive HTTP_ HTTP_ 399 Alive OC4J OC4J_BI_Forms 445 Alive OC4J OC4J_Portal 413 Alive OC4J home 412 Alive dcm-daemon dcm-daemon 715 Alive LogLoader logloaderd N/A Down Quelle:

27 Starting and Stopping Components I Enterprise Manager You can use the following tools to start, stop, restart, and view the status of components: opmnctl--a command-line tool Application Control--a Web-based tool To start, stop, or restart a component: ORACLE_HOME/opmn/bin/opmnctl stopproc ias-component=component ORACLE_HOME/opmn/bin/opmnctl startproc ias-component=component ORACLE_HOME/opmn/bin/opmnctl restartproc ias-component=component To start, stop, or restart the sub-process of a component: ORACLE_HOME/opmn/bin/opmnctl stopproc process-type=process ORACLE_HOME/opmn/bin/opmnctl startproc process-type=process ORACLE_HOME/opmn/bin/opmnctl restartproc process-type=process Quelle:

28 Starting and Stopping Components II Enterprise Manager

29 Increasing the Retry Count / Time Enterprise Manager OC4J Port Ranges in ORACLE_HOME/opmn/conf/opmn.xml <ias-component id="oc4j">... <process-type id="home"... >... <start timeout="600" retry="10"/>... <restart timeout="720" retry="10"/> <port id="ajp" range=" "/> <port id="rmi" range=" "/> <port id="jms" range=" "/>... </process-type> <process-type id="oc4j_security"... >... <start timeout="600" retry="10"/>... <restart timeout="720" retry="10"/> <port id="ajp" range=" "/> <port id="rmi" range=" "/> <port id="jms" range=" "/> </process-type> Quelle:

30 View / Search Logs by... by Component by Date/Time Range by Message Type by Message Text Enterprise Manager by Regular Expression "*", "?", "^", "$", "\t", "\n", "\r", "\f" Quelle:

31 Enterprise Data Center Topology for Forms, ect. Quelle:

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