Table of Contents

• Title and Copyright Information
• Preface
  • Documentation Accessibility
  • Conventions
• 1 Introduction and Roadmap
  • Document Scope and Audience
  • Guide to this Document
  • Performance Features of this Release
• 2 Top Tuning Recommendations for WebLogic Server
  • Tune Pool Sizes
  • Use the Prepared Statement Cache
  • Use Logging Last Resource Optimization
  • Tune Connection Backlog Buffering
  • Tune the Chunk Size
  • Use Optimistic or Read-only Concurrency
  • Use Local Interfaces
  • Use eager-relationship-caching
  • Tune HTTP Sessions
  • Tune Messaging Applications
• 3 Performance Tuning Roadmap
  • Performance Tuning Roadmap
    • Understand Your Performance Objectives
    • Measure Your Performance Metrics
    • Monitor Disk and CPU Utilization
    • Monitor Data Transfers Across the Network
    • Locate Bottlenecks in Your System
    • Minimize Impact of Bottlenecks
    • Tune Your Application
    • Tune your DB
    • Tune WebLogic Server Performance Parameters
    • Tune Your JVM
    • Tune the Operating System
    • Achieve Performance Objectives
  • Tuning Tips
• 4 Operating System Tuning
• 5 Tuning Java Virtual Machines (JVMs)
  • JVM Tuning Considerations
  • Changing To a Different JVM
  • Garbage Collection
    • VM Heap Size and Garbage Collection
    • Choosing a Garbage Collection Scheme
    • Using Verbose Garbage Collection to Determine Heap Size
    • Specifying Heap Size Values
    • Tuning Tips for Heap Sizes
    • Java HotSpot VM Heap Size Options
    • Automatically Logging Low Memory Conditions
    • Manually Requesting Garbage Collection
    • Requesting Thread Stacks
  • Enable Spinning for IA32 Platforms
  • Increasing Java Heap Size for Managed Servers
    • Using the Administration Console to Set Java Heap Size
    • Modify the startManagedWebLogic Script to Set Java Heap Size
    • Using the Command Line to Set Java Heap Size
• 6 Tuning WebLogic Diagnostic Framework and Java Flight Recorder Integration
  • Using Java Flight Recorder
  • Using WLDF
  • Tuning Considerations
• 7 Tuning WebLogic Server
  • Setting Java Parameters for Starting WebLogic Server
  • Development vs. Production Mode Default Tuning Values
  • Deployment
    • On-demand Deployment of Internal Applications
    • Use FastSwap Deployment to Minimize Redeployment Time
    • Generic Overrides
  • Thread Management
    • Tuning a Work Manager
    • How Many Work Managers are Needed?
    • What are the SLA Requirements for Each Work Manager?
    • Tuning Execute Queues
    • Understanding the Differences Between Work Managers and Execute Queues
    • Migrating from Previous Releases
    • Tuning the Stuck Thread Detection Behavior
  • Tuning Network I/O
    • Tuning Muxers
    • Network Channels
    • Reducing the Potential for Denial of Service Attacks
    • Tune the Chunk Parameters
    • Tuning Connection Backlog Buffering
    • Tuning Cached Connections
  • Setting Your Compiler Options
    • Compiling EJB Classes
    • Setting JSP Compiler Options
  • Using WebLogic Server Clusters to Improve Performance
    • Scalability and High Availability
    • How to Ensure Scalability for WebLogic Clusters
    • Database Bottlenecks
    • Session Replication
    • Asynchronous HTTP Session Replication
    • Invalidation of Entity EJBs
    • Invalidation of HTTP sessions
    • JNDI Binding, Unbinding and Rebinding
    • Running Multiple Server Instances on Multi-Core Machines
  • Monitoring a WebLogic Server Domain
    • Using the Administration Console to Monitor WebLogic Server
    • Using the WebLogic Diagnostic Framework
    • Using JMX to Monitor WebLogic Server
    • Using WLST to Monitor WebLogic Server
    • Resources to Monitor WebLogic Server
    • Third-Party Tools to Monitor WebLogic Server
  • Tuning Class and Resource Loading
    • Filtering Loader Mechanism
    • Class Caching
  • Server Migration with Database Leasing on RAC Clusters
  • SSL Considerations
• 8 Tuning WebLogic Server for Exalogic Environments
  • Enable Exalogic Optimizations
  • Message Compression In Oracle Exalogic Environments
    • Selecting a Message Compression Option
    • Message Compression for JMS Servers in Exalogic Environments
    • Message Compression for Store-and-Forward Sending Agents in Exalogic Environments
  • Enable Concurrent Queue for Pending Requests
  • Enable NIOSharedWorkSocketMuxer
  • Enable Gathered Writes
• 9 Tuning the WebLogic Persistent Store
  • Overview of Persistent Stores
    • Using the Default Persistent Store
    • Using Custom File Stores and JDBC Stores
    • Using a JDBC TLOG Store
    • Using JMS Paging Stores
    • Using Diagnostic Stores
  • Best Practices When Using Persistent Stores
  • Tuning JDBC Stores
  • Tuning File Stores
    • Basic Tuning Information
    • Tuning a File Store Direct-Write-With-Cache Policy
    • Tuning the File Store Direct-Write Policy
    • Tuning the File Store Block Size
  • Using a Network File System
    • Configuring Synchronous Write Policies
    • Test Server Restart Behavior
    • Handling NFS Locking Errors
  • Using Message Compression to Improve IO Performance In Oracle Exalogic Environments
• 10 DataBase Tuning
  • General Suggestions
  • Database-Specific Tuning
    • Oracle
    • Microsoft SQL Server
    • Sybase
• 11 Tuning WebLogic Server EJBs
  • General EJB Tuning Tips
  • Tuning EJB Caches
    • Tuning the Stateful Session Bean Cache
    • Tuning the Entity Bean Cache
    • Tuning the Query Cache
  • Tuning EJB Pools
    • Tuning the Stateless Session Bean Pool
    • Tuning the MDB Pool
    • Tuning the Entity Bean Pool
  • CMP Entity Bean Tuning
    • Use Eager Relationship Caching
    • Use JDBC Batch Operations
    • Tuned Updates
    • Using Field Groups
    • include-updates
    • call-by-reference
    • Bean-level Pessimistic Locking
    • Concurrency Strategy
  • Tuning In Response to Monitoring Statistics
    • Cache Miss Ratio
    • Lock Waiter Ratio
    • Lock Timeout Ratio
    • Pool Miss Ratio
    • Destroyed Bean Ratio
    • Pool Timeout Ratio
    • Transaction Rollback Ratio
    • Transaction Timeout Ratio
  • Using the JDT Compiler
• 12 Tuning Message-Driven Beans
  • Use Transaction Batching
  • MDB Thread Management
    • Determining the Number of Concurrent MDBs
    • Selecting a Concurrency Strategy
    • Thread Utilization When Using WebLogic Destinations
    • Limitations for Multi-threaded Topic MDBs
  • Best Practices for Configuring and Deploying MDBs Using Distributed Topics
  • Using MDBs with Foreign Destinations
    • Concurrency for MDBs that Process Messages from Foreign Destinations
    • Thread Utilization for MDBs that Process Messages from Foreign Destinations
  • Token-based Message Polling for Transactional MDBs Listening on Queues/Topics
  • Compatibility for WLS 10.0 and Earlier-style Polling
• 13 Tuning Data Sources
  • Data Source Administration
  • Waste Not
  • Database Listener Timeout under Heavy Server Loads
  • Advanced Configurations for Oracle Drivers and Databases
  • Additional Oracle Features
  • Use Best Design Practices
• 14 Tuning Transactions
  • Logging Last Resource Transaction Optimization
    • LLR Tuning Guidelines
  • Read-only, One-Phase Commit Optimizations
• 15 Tuning WebLogic JMS
  • JMS Performance & Tuning Check List
  • Handling Large Message Backlogs
    • Improving Message Processing Performance
    • Controlling Message Production
  • Cache and Re-use Client Resources
  • Tuning Distributed Queues
  • Tuning Topics
    • Tuning Non-durable Topic Publishers
  • Tuning for Large Messages
  • Defining Quota
    • Quota Resources
    • Destination-Level Quota
    • JMS Server-Level Quota
  • Blocking Senders During Quota Conditions
    • Defining a Send Timeout on Connection Factories
    • Specifying a Blocking Send Policy on JMS Servers
  • Tuning MessageMaximum
    • Tuning MessageMaximum Limitations
  • Setting Maximum Message Size for Network Protocols
  • Compressing Messages
    • Message Compression In Oracle Exalogic Environments
  • Paging Out Messages To Free Up Memory
    • Specifying a Message Paging Directory
    • Tuning the Message Buffer Size Option
  • Controlling the Flow of Messages on JMS Servers and Destinations
    • How Flow Control Works
    • Configuring Flow Control
    • Flow Control Thresholds
  • Handling Expired Messages
    • Defining a Message Expiration Policy
    • Configuring an Expiration Policy on Topics
    • Configuring an Expiration Policy on Queues
    • Configuring an Expiration Policy on Templates
    • Defining an Expiration Logging Policy
    • Expiration Log Output Format
    • Tuning Active Message Expiration
    • Configuring a JMS Server to Actively Scan Destinations for Expired Messages
  • Tuning Applications Using Unit-of-Order
    • Best Practices
    • Using UOO and Distributed Destinations
    • Migrating Old Applications to Use UOO
  • Using One-Way Message Sends
    • Configure One-Way Sends On a Connection Factory
    • One-Way Send Support In a Cluster With a Single Destination
    • One-Way Send Support In a Cluster With Multiple Destinations
    • When One-Way Sends Are Not Supported
    • Different Client and Destination Hosts
    • XA Enabled On Client's Host Connection Factory
    • Higher QOS Detected
    • Destination Quota Exceeded
    • Change In Server Security Policy
    • Change In JMS Server or Destination Status
    • Looking Up Logical Distributed Destination Name
    • Hardware Failure
    • One-Way Send QOS Guidelines
  • Tuning the Messaging Performance Preference Option
    • Messaging Performance Configuration Parameters
    • Compatibility With the Asynchronous Message Pipeline
  • Client-side Thread Pools
  • Best Practices for JMS .NET Client Applications
  • Considerations for Oracle Data Guard Environments
    • Pause Destinations for Planned Down Time
    • Migrate JMS Services for Unexpected Outages
• 16 Tuning WebLogic JMS Store-and-Forward
  • Best Practices for JMS SAF
  • Tuning Tips for JMS SAF
  • Message Compression for Store-and-Forward Sending Agents in Exalogic Environments
• 17 Tuning WebLogic Message Bridge
  • Best Practices
  • Changing the Batch Size
  • Changing the Batch Interval
  • Changing the Quality of Service
  • Using Multiple Bridge Instances
  • Changing the Thread Pool Size
  • Avoiding Durable Subscriptions
  • Co-locating Bridges with Their Source or Target Destination
  • Changing the Asynchronous Mode Enabled Attribute
  • Tuning Environments with Many Bridges
• 18 Tuning Resource Adapters
  • Classloading Optimizations for Resource Adapters
  • Connection Optimizations
  • Thread Management
  • InteractionSpec Interface
• 19 Tuning Web Applications
  • Best Practices
    • Disable Page Checks
    • Use Custom JSP Tags
    • Precompile JSPs
    • Disable Access Logging
    • Use HTML Template Compression
    • Use Service Level Agreements
    • Related Reading
  • Session Management
    • Managing Session Persistence
    • Minimizing Sessions
    • Aggregating Session Data
  • Pub-Sub Tuning Guidelines
• 20 Tuning Web Services
  • Web Services Best Practices
  • Tuning Web Service Reliable Messaging Agents
  • Tuning Heavily Loaded Systems to Improve Web Service Performance
    • Setting the Work Manager Thread Pool Minimum Size Constraint
    • Setting the Buffering Sessions
    • Releasing Asynchronous Resources
• 21 Tuning WebLogic Tuxedo Connector
  • Configuration Guidelines
  • Best Practices
• A Using the WebLogic 8.1 Thread Pool Model
  • How to Enable the WebLogic 8.1 Thread Pool Model
  • Tuning the Default Execute Queue
    • Should You Modify the Default Thread Count?
  • Using Execute Queues to Control Thread Usage
    • Creating Execute Queues
    • Modifying the Thread Count
    • Tuning Execute Queues for Overflow Conditions
    • Assigning Servlets and JSPs to Execute Queues
    • Assigning EJBs and RMI Objects to Execute Queues
  • Monitoring Execute Threads
  • Allocating Execute Threads to Act as Socket Readers
    • Setting the Number of Socket Reader Threads For a Server Instance
    • Setting the Number of Socket Reader Threads on Client Machines
  • Tuning the Stuck Thread Detection Behavior
• B Capacity Planning
  • Capacity Planning Factors
    • Programmatic and Web-based Clients
    • RMI and Server Traffic
    • SSL Connections and Performance
    • WebLogic Server Process Load
    • Database Server Capacity and User Storage Requirements
    • Concurrent Sessions
    • Network Load
    • Clustered Configurations
    • Server Migration
    • Application Design
  • Assessing Your Application Performance Objectives
  • Hardware Tuning
    • Benchmarks for Evaluating Performance
    • Supported Platforms
  • Network Performance
    • Determining Network Bandwidth
  • Related Information