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Autore: | Hirt Marcus |
Titolo: | Oracle JRockit : the definitive guide : develop and manage robust Java applications with Oracle's high-performance Java Virtual Machine / / Marcus Hirt, Marcus Lagergren |
Pubblicazione: | Birmingham, U.K., : Packt Enterprise, 2010 |
Edizione: | 1st edition |
Descrizione fisica: | 1 online resource (588 p.) |
Disciplina: | 005.1 |
005.133 | |
Soggetto topico: | Application software - Development |
Java (Computer program language) | |
Altri autori: | LagergrenMarcus |
Note generali: | Includes index. |
Nota di bibliografia: | Includes bibliographical references (p. [493]-501) and index. |
Nota di contenuto: | Cover; Copyright; Credits; Foreword; About the Authors; About the Reviewers; Table of Contents; Preface; Chapter 1: Getting Started; Obtaining the JRockit JVM; Migrating to JRockit; Command-line options; System properties; Standardized options; Non-standard options; Changes in behavior; A note on JRockit versioning; Getting help; Summary; Chapter 2: Adaptive Code Generation; Platform independence; The Java Virtual Machine; Stack machine; Bytecode format; Operations and operands; The constant pool; Code generation strategies; Pure bytecode interpretation; Static compilation |
Total JIT compilationMixed mode interpretation; Adaptive code generation; Determining ""hotness""; Invocation counters; Software-based thread sampling; Hardware-based sampling; Optimizing a changing program; Inside the JIT compiler; Working with bytecode; Bytecode obfuscation; Bytecode ""optimizers""; Abstract syntax trees; Where to optimize; The JRockit code pipeline; Why JRockit has no bytecode interpreter; Bootstrapping; Runtime code generation; Trampolines; Code generation requests; Optimization requests; On-stack replacement; Bookkeeping; A walkthrough of method generation in JRockit | |
The JRockit IR formatJIT compilation; Generating optimized code; Controlling code generation in JRockit; Command-line flags and directive files; Command-line flags; Directive files; Summary; Chapter 3: Adaptive Memory Management; The concept of automatic memory management; Adaptive memory management; Advantages of automatic memory management; Disadvantages of automatic memory management; Fundamental heap management; Allocating and releasing objects; Fragmentation and compaction; Garbage collection algorithms; Reference counting; Tracing techniques; Mark and sweep; Stop and copy | |
Stopping the worldConservative versus exact collectors; Livemaps; Generational garbage collection; Multi generation nurseries; Write barriers; Throughput versus low latency; Optimizing for throughput; Optimizing for low latency; Garbage collection in JRockit; Old collections; Nursery collections; Permanent generations; Compaction; Speeding it up and making it scale; Thread local allocation; Larger heaps; 32-Bits and the 4-GB Barrier; The 64-bit world; Cache friendliness; Prefetching; Data placement; NUMA; Large pages; Adaptability; Near-real-time garbage collection; Hard and soft real-time | |
JRockit Real TimeDoes the soft real-time approach work?; How does it work?; The Java memory API; Finalizers; References; Weak references; Soft references; Phantom references; Differences in JVM behavior; Pitfalls and false optimizations; Java is not C++; Controlling JRockit memory management; Basic switches; Outputting GC data; Set initial and maximum heap size; Controlling what to optimize for; Specifying a garbage collection strategy; Compressed references; Advanced switches; Summary; Chapter 4: Threads and Synchronization; Fundamental concepts; Hard to debug; Difficult to optimize | |
Latency analysis | |
Sommario/riassunto: | Develop and manage robust Java applications with Oracle's high-performance JRockit Java Virtual Machine with this book and eBook |
Titolo autorizzato: | Oracle JRockit |
ISBN: | 1-282-62409-1 |
9786612624094 | |
1-84719-807-4 | |
Formato: | Materiale a stampa |
Livello bibliografico | Monografia |
Lingua di pubblicazione: | Inglese |
Record Nr.: | 9910824290903321 |
Lo trovi qui: | Univ. Federico II |
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