Troubleshooting Java performance : detecting anti-patterns with open source tools /: detecting anti-patterns with open source tools. (2017)

• Record Type: Book
• Further Information: Note: Erik Ostermueller.
• Other Names: Ostermueller, Erik
• Contents: At a Glance; Contents; About the Author; About the Technical Reviewer; Acknowledgments; Introduction; Part I: Getting Started with Performance Tuning; Chapter 1: Performance Anti-Patterns; Main Performance Anti-Patterns; Main Anti-Pattern #1: Unnecessary Initialization; Main Anti-Pattern #2: Strategy/Algorithm Inefficiency; Main Anti-Pattern #3: Overprocessing; Main Anti-Pattern #4: Large Processing Challenge; Assessing the Size of a Processing Challenge; Using the Main Performance Anti-Patterns; Don't Forget; What's Next; Chapter 2: A Modest-sized Tuning Environment; Rapid Tuning. Write-Once-Run-Anywhere Performance DefectsTuning Environment for Developers; Network; Stubbing Out Back-end Systems; Stubbing Out HTTP Back-ends with Wiremock; Local Load Generation; Quick Overview of Load Generation; Load Generator Responsibilities; CPU Consumption by PID; Comparison Metrics; Don't Forget; What's Next; Chapter 3: Metrics: The Antidote to Guesswork; Which Metric?; Setting Direction for Tuning; The Backup Plan: Indirect Performance Assessment with Load Generator Metrics; Large Payloads are a Red Flag; Variability Is a Red Flag; Creatively Setting Direction for Tuning. Creative Test Plan 1Creative Test Plan 2; Tracking Performance Progress; Don't Forget; What's Next; Part II: Creating Load Scripts and Load Testing; Chapter 4: Load Generation Overview; The Load Generator; Correlation Variables; Sequencing Steps in a Load Script; The First Priority Script; Load Scripts and SUT Logons; Using the Same SUT User in Multiple Threads; Second Priority; Load Script Stage 1; Details; Validating HTTP Responses; Load Script Stage 2; Details; Load Script Stage 3; Details; Load Script Stage 4; Invite Skepticism; Project Lifecycle Hints; Don't Forget; What's Next. Chapter 5: Invalid Load TestsNetwork Issues; Container Issues; Insufficient Warmup; Maxed-Out Hardware Resources; Virtualization Issues; Wrong Workload Issues; Load Script Errors; Don't Forget; What's Next; Chapter 6: A Scalability Yardstick; Creating a Scalability Yardstick Load Plan; Interpreting Results; Imperfect and Essential; Reproducing Bad Performance; Good and Bad CPU Consumption; Don't Forget; What's Next; Chapter 7: JMeter Must-Know Features; Love Letter to JMeter; Using jmeter-plugins.org Is a Must; PerfMon; JMeter user.properties Is Your Friend; JMeter Introduction. UI Features for Working QuicklyFunctional Validation During Load Test Using JMeter Assertions; Script Variables; Saving Performance Results to Disk; How to Avoid Redundant Copies of Huge Files; Right-Sizing Output Files for Heavy Debugging or High Throughput; Recording an HTTP Script; Debugging an HTTP Recording; Load Testing Java Directly and Debugging; JMeter Sandbox; JMeter Sandbox with One Graph; JMeter Sandbox / Multiple Metrics on Same Graph; JMeter Sandbox for Testing Correlation Variables; Fishing Expedition-Step One, Find the Data Item; Fishing Expedition-Step Two; Prerequisites.
• Publisher Details: United States : Apress
• Publication Date: 2017
• Extent: 1 online resource
• Subjects: 005.1/4; Computer science; Debugging in computer science; Computer software -- Development; Java (Computer program language); COMPUTERS -- Software Development & Engineering -- Quality Assurance & Testing; Computer software -- Development; Debugging in computer science; Java (Computer program language); Java (Computer program language); Computers -- Programming Languages -- Java; Programming & scripting languages: general; Electronic book; Electronic books
• Languages: English
• ISBNs: 9781484229798; 1484229797
• Related ISBNs: 9781484229781; 1484229789
• Notes: Note: Includes bibliographical references and index.; Note: Online resource; title from PDF title page (EBSCO, viewed October 18, 2017).
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
• Access Usage: Restricted: Printing from this resource is governed by The Legal Deposit Libraries (Non-Print Works) Regulations (UK) and UK copyright law currently in force.