JBoss AS 5 Performance Tuning -- Table of Contents -- JBoss AS 5 Performance Tuning -- Credits -- About the Author -- About the Reviewers -- www.PacktPub.com -- Support files, eBooks, discount offers and more -- Why Subscribe? -- Free Access for Packt account holders -- Preface -- What this book covers -- What you need for this book -- Who this book is for -- Conventions -- Reader feedback -- Customer support -- Errata -- Piracy -- Questions -- 1. Performance Tuning Concepts -- Preface -- What you will get from this book? -- What is performance? -- Scalability: the other side of performance -- The tuning process -- Tuning in the software development cycle -- Building the performance test -- Establish a baseline -- Collect data -- How long should data collection last? -- Analyze data -- Configure and test again -- Tuning Java Enterprise applications -- Areas of tuning -- Summary -- 2. Installing the Tools for Tuning -- Welcome to scientific tuning -- The rationale behind the choice of the tools -- Profiling the Java Virtual Machine -- Installing the JVM -- Installing VisualVM -- Connecting to a local server -- Connecting to a remote server -- Monitoring your server -- The Monitor tab -- The Threads tab -- The Profiler tab -- Collecting snapshots -- Extending VisualVM -- Profiling your applications with Eclipse Test and Performance Tools Platform (TPTP) Project -- Installing the TPTP suite -- Updating Eclipse -- How to profile an application -- Going beyond the basics of TPTP -- Load testing your application with JMeter -- Building a Test Plan -- Step 1: Create a Thread Group -- Step 2: Create a Sampler -- Step 3: Create a Listener -- Making your test plan a bit more realistic -- How to create a complex Test Plan -- Running JMeter as a shell -- Operating system tools and commands -- Windows users -- Unix users -- Dealing with low CPU utilization.

Dealing with high CPU utilization -- Dealing with high resource contention -- Dealing with high disk utilization -- Summary -- 3. Tuning the Java Virtual Machine -- The starting point -- Choosing the JVM settings -- Setting the correct heap size -- The correct amount of memory to grant your application -- Step # 1: Finding the maximum heap (-Xmx) -- Step # 2: Finding the initial heap size (-Xms) -- I cannot allocate enough memory for the JVM! -- Where do I configure JVM settings in JBoss AS? -- Sizing the garbage collector generations -- Which is the correct ratio between the young and old generations? -- The garbage collector algorithms -- Choosing the right garbage collector for your application -- The G1 garbage collector -- Debugging garbage collection -- Making good use of the memory -- Avoid creating large Java objects -- Handling 'Out of Memory' errors -- Finding the memory leak in your code -- A practical example -- Application description -- Setting up a test bed -- Benchmark aftermath -- Consideration #1 -- Consideration #2 -- Action -- Further optimization -- Summary -- 4. Tuning the JBoss AS -- From release 4.x to 5.x, and on -- Comparing server releases -- Creating a custom application server configuration -- JBoss AS pools -- The System thread pool -- Finding out if the System thread pool is a bottleneck -- JDBC connection pool -- Calculating the optimal min-pool-size and max-pool-size -- Using Prepared Statements efficiently -- Two things to be aware of: -- Detecting connection leaks -- Should you reuse connections or acquire new ones from the pool? -- Logging for performance -- Choosing the best logging strategy -- Which is the fastest appender? -- Should I use the AsyncAppender to improve my log throughput? -- Which layout should I choose for my logs? -- Is it enough to increase the log threshold to get rid of log charge?.

How does logging hierarchy influence performance? -- Summary -- 5. Tuning the Middleware Services -- Introduction to Enterprise Java Beans -- Session Beans -- How to configure the optimal size for stateless pool? -- How to configure the optimal size of stateful cache? -- Comparing SLSBs and SFSBs performance -- When things get wilder -- Is it possible that Stateful Beans are faster then Stateless Beans? -- Session Beans and Transactions -- Customizing JBoss EJB container policies -- Customizing the single deployment unit -- Introduction to the Java Messaging system -- Entering the JBoss Messaging system -- Tuning JBoss JMS provider -- Tuning JBoss Messaging (JBoss AS 5.x) -- How do you tune the JBoss Messaging Connection factory? -- How do you tune JBoss Messaging destinations? -- Tuning HornetQ (JBoss AS 6.x) -- How to configure HornetQ journal for optimal performance? -- How do you configure HornetQ transport for optimal performance? -- Basic JMS tuning -- An example use case with HornetQ -- Summary -- 6. Tuning the Persistence Layer -- Designing a good database -- Reducing the space needed by your database -- Partitioning the database -- Using indexes -- Tuning JDBC -- Using a Connection Pool -- Setting the proper fetch size -- Use batch updates for bulk insert/updates -- Use Prepared Statements instead of Statements -- Tuning JDBC networking -- Tuning Hibernate and JPA -- Optimizing object retrieval -- Limiting the amount of data fetched with pages -- Fetching parent and child items with a single query -- Combining join fetches and paging -- Speeding up your Hibernate queries with batches -- Using named queries to speed up your queries -- Improving the performance of bulk SQL statements -- Evaluating using caches to speed up your queries -- Hibernate caches -- The first-level cache -- The second-level cache.

Configuring the second-level cache on JBoss AS -- The query cache -- Entity cache versus query cache -- Optimizing data synchronization -- A sample use case -- Summary -- 7. JBoss AS Cluster Tuning -- Introduction to JBoss clustering -- Configuring JGroups transport -- How to optimize the UDP transport configuration -- How to optimize the JGroups' Protocol stack -- Tuning JBoss Cache -- Understanding JBoss Cache configuration -- Configuring cacheMode -- Configuring cache concurrency -- Configuring the isolationLevel -- Tuning session replication -- Override SFSB's isModified method -- Use buddy replication -- Advanced buddy replication -- Buddy replication and session affinity -- Configure replication granularity and replication trigger -- How to configure the replication-trigger -- How to configure the replication-granularity -- Tuning cache storage -- Where does cache data get stored? -- Summary -- 8. Tomcat Web Server Tuning -- JBoss Web server basics -- Configuring Connectors for optimal performance -- How do you calculate the threads for your application? -- A concrete example -- The long life of Web threads -- Is there a maximum amount of connections the Web server can handle? -- Using Apache Portable Runtime -- Integrating JBoss Web server with Apache Web server -- Load testing Apache-JBoss connectivity -- mod_cluster to the rescue? -- Last tips before rolling JBoss Web server in production -- Summary -- 9. Tuning Web Applications on JBoss AS -- Choosing a framework for your web applications -- Comparing framework performance -- The performance of tabular data -- The performance of rich tree -- Increasing the performance of JSF and RichFaces -- Configuring JSF state saving efficiently -- Using Ajax to speed up your JSF applications -- Speeding up CSS and JavaScript file loading -- Tuning web services -- Performance of web services.

Elements influencing the performance of web services -- Reducing the size of SOAP messages -- Faster JBossWS provider -- The wisdom behind these benchmarks -- Summary -- A. A Tuned Mind -- Index.