Java performance tuning
No matter what language they're programming in, developers always wish things would run faster! Especially when writing mission-critical applications, no one wants to be limited by the programming environment. Java Performance Tuning provides all the details you need to know to "performanc...
| Autor principal: | |
|---|---|
| Formato: | Libro electrónico |
| Idioma: | Inglés |
| Publicado: |
Cambridge, Mass. :
O'Reilly
2000.
|
| Edición: | 1st ed |
| Colección: | Java series (O'Reilly & Associates)
|
| Materias: | |
| Ver en Biblioteca Universitat Ramon Llull: | https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009627185006719 |
Tabla de Contenidos:
- Why Is It Slow? 2
- Tuning Game 3
- System Limitations and What to Tune 3
- A Tuning Strategy 5
- Perceived Performance 6
- Starting to Tune 10
- What to Measure 15
- Don't Tune What You Don't Need to Tune 17
- 2. Profiling Tools 20
- Measurements and Timings 21
- Garbage Collection 23
- Method Calls 26
- Object-Creation Profiling 43
- Monitoring Gross Memory Usage 50
- Client/Server Communications 56
- 3. Underlying JDK Improvements 64
- Garbage Collection 64
- Replacing JDK Classes 66
- Faster VMs 68
- Better Optimizing Compilers 73
- Sun's Compiler and Runtime Optimizations 82
- Compile to Native Machine Code 89
- Native Method Calls 90
- Uncompressed ZIP/JAR Files 91
- 4. Object Creation 94
- Object-Creation Statistics 96
- Object Reuse 97
- Avoiding Garbage Collection 112
- Initialization 115
- Early and Late Initialization
- 117
- 5. Strings 122
- Performance Effects of Strings 122
- Compile-Time Versus Runtime Resolution of Strings 125
- Conversions to Strings 126
- Strings Versus char Arrays 142
- String Comparisons and Searches 150
- Sorting Internationalized Strings 153
- 6. Exceptions, Casts, and Variables 161
- Exceptions 161
- Casts 167
- Variables 169
- Method Parameters 172
- 7. Loops and Switches 174
- Java.io. Reader Converter 178
- Exception-Terminated Loops 184
- Switches 189
- Recursion 195
- Recursion and Stacks 200
- 8. I/O, Logging, and Console Output 204
- Replacing System.out 206
- Logging 208
- From Raw I/O to Smokin' I/O 209
- Serialization 217
- Clustering Objects and Counting I/O Operations 230
- Compression 232
- 9. Sorting 237
- Avoiding Unnecessary Sorting Overhead 237
- An Efficient Sorting Framework 241
- Better Than O(nlogn) Sorting 249
- Performance Checklist 255
- 10. Threading 256
- User-Interface Thread and Other Threads 258
- Race Conditions 259
- Deadlocks 261
- Synchronization Overheads 265
- Timing Multithreaded Tests 275
- Atomic Access and Assignment 276
- Thread Pools 278
- Load Balancing 279
- Threaded Problem-Solving Strategies 291
- 11. Appropriate Data Structures and Algorithms 293
- Collections 294
- Java 2 Collections 296
- Hashtables and HashMaps 298
- Cached Access 302
- Caching Example I 303
- Caching Example II 306
- Finding the Index for Partially Matched Strings 310
- Search Trees 314
- 12. Distributed Computing 335
- Tools 337
- Message Reduction 339
- Comparing Communication Layers 342
- Caching 344
- Batching I 346
- Application Partitioning 347
- Batching II 348
- Low-Level Communication Optimizations
- 349
- Distributed Garbage Collection 354
- Databases 355
- 13. When to Optimize 357
- When Not to Optimize 358
- Tuning Class Libraries and Beans 359
- Analysis 362
- Design and Architecture 366
- Tuning After Deployment 382
- More Factors That Affect Performance 383
- 14. Underlying Operating System and Network Improvements 389
- Hard Disks 390
- CPU 395
- RAM 397
- Network I/O 398.
