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"-XX:+PrintGC" - GC Logging Option for Short Messages
This section describes the garbage collection logging option, '-XX:+PrintGC', which prints a shot message after each garbage collection is done. 2022-10-01, ∼354🔥, 0💬

What Is Serial Collector
This section describes the Serial Collector, which uses the combination of the Serial Collector of Young generation and the Serial Collector of Tenured generation, so both minor GC and major GC are performed in a single thread serially in a stop-the-world fashion. 2022-10-01, ∼352🔥, 0💬

"-XX:+PrintReferenceGC" - Reference Counts per GC
This section describes the garbage collection logging option, '-XX:+PrintReferenceGC', which prints object reference counts. 2022-10-01, ∼351🔥, 0💬

"-XX:+PrintGCApplicationStoppedTime" - Application Pause Durations
This section describes the garbage collection logging option, '-XX:+PrintGCApplicationStoppe dTime',which prints how much time it lasted when the JVM pauses the execution of the application for garbage collection or other JVM event. 2022-10-01, ∼347🔥, 0💬

BenchmarkRunner.java - Benchmark Runner Program
This section provides a tutorial example on how to write a benchmark runner program that takes care of JVM warming up, JIT compilation, measuring time, and other non-test related tasks. 2022-10-01, ∼346🔥, 0💬

java.lang.Runtime Class - The JVM Instance
This chapter provides tutorial notes and example codes on java.lang.Runtime class. Topics include the JVM instance class, Runtime; obtaining JVM memory usage; running Garbage Collector explicitly; initiating the shutdown sequence; running operating system commands; loading Windows DLL codes. 2022-10-01, ∼344🔥, 0💬

Serial GC Tracing - Tenuring Threshold Controlled
This section provides a tutorial showing how to control Serial collector Tenuring threshold with InitialTenuringThreshold and MaxTenuringThreshold JVM options. 2022-10-01, ∼344🔥, 0💬

Parallel Collector GC Log Message Format
This section describes the GC log message format of HotSpot JVM Parallel Collector. 2022-10-01, ∼344🔥, 0💬

Young Generation Collectors - Serial, PS, ParNew, G1
This section describes Garbage Collectors used for the Young generation: Serial, Parallel Scavenge (PS), Parallel New (ParNew), and Garbage First (G1). 2022-10-01, ∼343🔥, 0💬

Adaptive Size Policy Log Messages
This section provides examples and explanations of log messages generated '-XX:AdaptiveSizePolicyOutputI nterval=1'and 'PrintAdaptiveSizePolicy' JVM options used with the Parallel collector. 2022-10-01, ∼342🔥, 0💬

Archived: GC Test - Constant Memory Requirement
This section provides a tutorial example on testing garbage collection with a constant memory requirement. 2022-10-01, ∼337🔥, 0💬

GCPerformance.java - GC Performance Test Program
This section describes a GC performance test program - GCPerformance.java. 2022-10-01, ∼337🔥, 0💬

"-XX:+PrintGC" - Watching GC (Garbage Collection) Logs
This section provides a tutorial example on how to use the HotSpot JVM command option, -XX:+PrintGC, to watch GC (Garbage Collection) logs. JVM performs GC with a regular interval during the test run loop and has no impact on the execution time of the test code. 2022-10-01, ∼336🔥, 0💬

What Is Eclipse OpenJ9
This section provides a quick introduction of Eclipse OpenJ9, which is an independent implementation of a JVM (Java Virtual Machine) developed by the Eclipse Foundation. 2022-10-01, ∼336🔥, 0💬

Micro Benchmark Runner and JVM Options
This chapter provides tutorial notes and example codes on micro benchmark testing. Topics include micro benchmark guidelines; controlling and watching JIT compilation; controlling and watching GC. 2022-10-01, ∼333🔥, 0💬

Archived: GC Test - Periodical Memory Requirement
This section provides a tutorial example on testing garbage collection with a periodical memory requirement. 2022-10-01, ∼333🔥, 0💬

Adaptive Size Policy for Best Latency
This section provides a tutorial on how Adaptive Size Policy is used by the Parallel collector to our best latency goal. 2022-10-01, ∼333🔥, 0💬

Micro Benchmark Tests in JIT Compilation Mode
This chapter provides tutorial notes and example codes on micro benchmark tests on 'int' and 'long' data type operations in HotSpot JIT compilation mode. Topics include empty loop, assignment loop, shift operation, add operation, multiplication operation and division operation. 2022-10-01, ∼331🔥, 0💬

java.lang.System Class - The Operating System
This chapter provides tutorial notes and example codes on java.lang.System class. Topics include accessing standard input, output, and error streams; getting the current time in milliseconds and nanoseconds; accessing environment variables; managing JVM instance properties. 2022-10-01, ∼326🔥, 0💬

References
List of reference materials used in this book. 2022-10-01, ∼325🔥, 0💬

Object References and Garbage Collection
This chapter provides tutorial notes and example codes on Object References and Garbage Collection. Topics include object reference types; strong reference test program; final reference test program; dead objects with final references in heap; performance impact of final references. 2022-10-01, ∼325🔥, 0💬

Serial GC Tracing - Plenty of Heap
This section provides a tutorial of tracing how Serial GC works with a huge heap size, plenty of memory in 'new' generation. 2022-10-01, ∼318🔥, 0💬

Micro Benchmark Tests on "long" Operations
This chapter provides tutorial notes and example codes on micro benchmark tests on 'long' data type operations. Topics include empty loop, assignment loop, add operation, multiplication operation and division operation. 2022-10-01, ∼317🔥, 0💬

emptyLoop() - The Empty Loop Test Method
This section provides a tutorial example on how to write empty loop test method. The benchmark test result shows impacts of JIT compilation and the garbage collection threads 2022-10-01, ∼312🔥, 0💬

<< < 1 2 3 4 5 6 7 8 9 10 … > >>   ∑:301  Sort:Rank

Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python Reference REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO