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Java Performance 培训
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 班级规模及环境--热线:4008699035 手机:15921673576( 微信同号) |
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每期人数限3到5人。 |
| 上课时间和地点 |
开课地址：【上海】同济大学(沪西)/新城金郡商务楼(11号线白银路站)【深圳分部】：电影大厦(地铁一号线大剧院站) 【武汉分部】：佳源大厦【成都分部】：领馆区1号【沈阳分部】：沈阳理工大学【郑州分部】：锦华大厦【石家庄分部】：瑞景大厦【北京分部】：北京中山学院 【南京分部】：金港大厦
最新开班 (连续班 、周末班、晚班）：2020年3月16日 |
| 实验设备 |
☆资深工程师授课
☆注重质量
☆边讲边练
☆合格学员免费推荐工作
★实验设备请点击这儿查看★ |
| 质量保障 |
1、培训过程中，如有部分内容理解不透或消化不好，可免费在以后培训班中重听；
2、培训结束后,授课老师留给学员联系方式,保障培训效果,免费提供课后技术支持。
3、培训合格学员可享受免费推荐就业机会。 |
课程大纲 |
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- Basics and performance measurements
Performance dimensions
The process of creating efficient software
Factors affecting performance
Micro and Macro-Benchmarking
Profiling
Use of tools: JConsole, Java Visual VM, JMC (Java Mission Control), MAT (memory analysis)
Efficient work on files
IO: streams, buffering, RandomAccessFile
NIO: channels, memory mapped files
NIO.2 (introduction): Path, Files
How to increase serialization performance
Working with collections and arrays
Computational complexity - how to choose algorithms
Recursion, iteration and heuristics
Performance for sets, lists, queues, maps
Views and Collections class
Review of multithreaded collections (java.util.concurrent)
Arrays and collections for simple types
JMH - approved microbenchmak framework for Java
Creating JMH project and benchmarks
Configuration, running, results
Concurrent and parameterizable Benchmarks
Traps and advanced elements
Class loading
Class Class, ClassLoader and class loading process
When to control class loading?
Delaying class loading and reducing the number of classes
Reflection and dynamic proxy
Introduction to modules (Java 9)
Memory management in Java
Garbage Collector and object life cycle
Strong, soft, weak and phantom references
Why memory leak occurs and what to avoid in Java
Generations and memory spaces
Tuning Garbage Collector
Types of Garbage Collector: Serial, Parallel, Concurrent, G1
Changes in Java 8 and Java 9
Java Virtual Machine
Client and server modes
Tuning JVM
Performance changes from version to version
Introduction to optimization for HTTP (OPTIONAL)
Problems with server side optimization
Testing with HTTP: HttpUnit, JWebUnit, Selenium
Performance measurements for HTTP: Grinder, JMeter
Additional information about JMeter
Problems with optimization
Micro-benchmarking problems
Premature optimization
Greed
Other bad practices
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