WebLogic 103 Performance Tuning

Training Provided by Wintrac Inc. WebLogic Training Overview This course teaches WebLogic 10. 3 performance tuning. WebLogic Training Topics Performance Tuning Foundations Tuning the Sun HotSpot JVM Tuning the Oracle JRockit JVM Threads and Work Managers Tuning JMS and JDBC The WebLogic Diagnostic Framework Clustering WebLogic Training Objectives At the completion of this course, the student will be able to Understand the principles of performance tuning Understand the various components that affect overall system performance Understand basic terminology like throughput, bottleneck and burstiness Analytically and scientifically perform load tests to assess and improve performance Configure and tune WebLogic Server to performance best practices Understand how both the Sun and JRockit JVMs interact with WebLogic Server Use WebLogic Server and JVM provided performance tools to observe JVM performance Configure and tune the Java Virtual Machine memory settings for optimal performance Understand (and configure) the impacts of threads, JDBC and JMS on performance Understand clustering architecture

WebLogic 103 Performance Tuning 1. Performance Tuning Foundation

Topics
List of Terms
Load
Active Load
Concurrent Load
Peak Load
Throughput
Throughput Curve
The significance of throughput
Response time
Response Time Curve
Think time
User Ramp Up
Saturation
Response time at system saturation
Response time past the buckle point
Interpreting response time trends
Interpreting response time trends
Interpreting response time trends
Performance Acceptance Criteria
Measure your system s steady state
Path length
Bottleneck
Dealing with a bottleneck
Scaling
Horizontal and vertical scaling
Analyze before trying to scale
Calculating QA User Count
Accommodating QA User Count
Scaling Up QA Configuration
Bottom Up and Top Down
Bottom Up Testing
Summary
2. Performance Tuning Techniques
Topics
Basic Methodology
Problem Areas
CPU utilization
The components of CPU usage
Measure CPU utilization everywhere
Symptoms of underutilization
What causes underutilization?
Network capacity problem?
Synchronization problem?
Slow external resource?
Is the test pushing the system hard enough?
Does your system scale?
Symptoms of burstiness
Infrequent synchronization problem?
Test driver synchronization problem?
Slow back-end systems?
Slow garbage collection?
Timeout problems?
Erratic network traffic?
Symptoms of over utilization
High User CPU
High System CPU
High Wait CPU
Server hanging
Summary
3. Basic Configuration
What is this Chapter About?
WebLogic Domain
Admin Server
Managed Server
Application Staging
Logging
Server Logs
Domain Log
Log Filters
Admin Port
Network Channels
Summary
4. The JVM and Memory
What is this Chapter About?
Java basics
Compilation and Interpretation
Bytecodes
Optimizing JVMs
HotSpot (Sun)
JRockit (Oracle/ BEA)
Steady State Optimization
Kinds of Memory
Threads and the Stack
The Heap
Setting Heap Size
Garbage Collection
References
GC Intents
Throughput
Pauses
Infant Mortality
Generational Garbage Collection
Summary
5. Sun JDK HotSpot
What is this Chapter About?
-server
The HotSpot heap
Default Heap Sizes
Generations
Generation sizing
Garbage Collectors
Serial
Throughput
Concurrent Low Pause
Incremental (Train)
Default Garbage Collector
Selecting a Garbage Collector
Ergonomics
Heap Self-tuning
Tools
jvisualvm
jconsole
Summary
6. BEA/ Oracle JDK JRockit
What is this Chapter About?
JRockit Introduction
The JRockit Heap
Two Generation
Single Spaced
Garbage Collectors
Automatic Algorithm Selection
throughput
pausetime
deterministic
Manual Algorithm Selection
singlepar
genpar
singlecon
gencon
Compaction
Tools
JRockit Mission Control
JRockit Management Console
Enabling Management
JRockit Runtime Analyzer
JRockit Memory Leak Detector
JRCMD
Summary
7. Threads, Execute Queues and Work Managers
What is this Chapter About?
Threads
Socket Reader Threads
Performance Packs
Too Many Threads
Too Few Threads
Self-Tuning Thread Pools
Execute Queues
Backwards Compatibility
Execute Queue for Servlet or JSP
Execute Queue for EJB
Work Managers
Scope
Algorithms
Fair Share
Response Time
Context
Summary
8. JDBC
What is this Chapter About?
Connection Pools
Dynamic Pool Behavior
Testing
Transactions
Local
Distributed
9. JMS
What is this Chapter About?
JMS Overview
Messaging Domains
PTP
Pub-Sub
Thresholds and Quotas
JMS Stores
Persistent Store
Paging Store
File Store
JDBC Store
Write policy
Selectors
Summary
10. Clusters
What is this Chapter About?
Clustering Overview
Single tier cluster
Multi tier cluster
LAN Cluster
MAN CLuster
WAN Cluster
Session Failover
In-Memory
JDBC
File
Load Balancing
Cluster Heartbeats
Web Server Plugins
Hardware Load Balance
Summary
11. WebLogic Diagnostic Framework
What is this Chapter About?
WLDF Overview
WLDF Architecture
Diagnostic Services
Data Creator
Data Collector
Data Archive
Data Manager
Image Capture
Event Notifications
JMX Overview
MBeans
Configuration MBeans
Runtime MBeans
Summary
Appendix A. Solaris Monitoring and Tuning
Monitoring Tools
The uptime Command
The top Command
The iostat Command
The vmstat Command
The pmap Command
Kernel Parameter Tuning
Increase Maximum File Descriptor Limit
Increase Maximum File Descriptor Limit
Network Tuning
Network Tuning
Linux Tuning Tips
Linux Tuning Tips
Linux Tuning Tips
Appendix B. Solaris Monitoring and Tuning
The vmstat Command
The mpstat Command
The iostat Command
The netstat Command
netstat (cont.)
Increasing the Connection Backlog
Minimize Packet Fragmentation
Reduce Socket Overhead
Recover from Browser Disconnects
Kernel Tuning
Minimize Page Scanning
Appendix C. Windows Monitoring and Tuning
Task Manager
The netstat Command

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