Java Performance Companion

<p style="margin:0px;">Preface ix</p> <p style="margin:0px;">Acknowledgments xi</p> <p style="margin:0px;">About the Authors xv</p> <p style="margin:0px;">&nbsp;</p> <p style="margin:0px;">Chapter 1: Garbage First Overview 1</p> <p style="margin:0px;">Terminology 1</p> <p style="margin:0px;">Parallel GC 2</p> <p style="margin:0px;">Serial GC 4</p> <p style="margin:0px;">Concurrent Mark Sweep (CMS) GC 5</p> <p style="margin:0px;">Garbage First (G1) GC 8</p> <p style="margin:0px;">References 14</p> <p style="margin:0px;"><br></p> <p style="margin:0px;">Chapter 2: Garbage First Garbage Collector in Depth 15</p> <p style="margin:0px;">Background 15</p> <p style="margin:0px;">Garbage Collection in G1 16</p> <p style="margin:0px;">The Young Generation 17</p> <p style="margin:0px;">A Young Collection Pause 18</p> <p style="margin:0px;">Object Aging and the Old Generation 19</p> <p style="margin:0px;">Humongous Regions 19</p> <p style="margin:0px;">A Mixed Collection Pause 22</p> <p style="margin:0px;">Collection Sets and Their Importance 24</p> <p style="margin:0px;">Remembered Sets and Their Importance 24</p> <p style="margin:0px;">Concurrent Marking in G1 GC 30</p> <p style="margin:0px;">Stages of Concurrent Marking 34</p> <p style="margin:0px;">Evacuation Failures and Full Collection 37</p> <p style="margin:0px;">References 38</p> <p style="margin:0px;">&nbsp;</p> <p style="margin:0px;">Chapter 3: Garbage First Garbage Collector Performance Tuning 39</p> <p style="margin:0px;">The Stages of a Young Collection 39</p> <p style="margin:0px;">Young Generation Tunables 50</p> <p style="margin:0px;">Concurrent Marking Phase Tunables 52</p> <p style="margin:0px;">A Refresher on the Mixed Garbage Collection Phase 54</p> <p style="margin:0px;">The Taming of a Mixed Garbage Collection Phase 56</p> <p style="margin:0px;">Avoiding Evacuation Failures 59</p> <p style="margin:0px;">Reference Processing 60</p> <p style="margin:0px;">References 65</p> <p style="margin:0px;">&nbsp;</p> <p style="margin:0px;">Chapter 4: The Serviceability Agent 67</p> <p style="margin:0px;">What Is the Serviceability Agent? 68</p> <p style="margin:0px;">Why Do We Need the SA? 68</p> <p style="margin:0px;">SA Components 69</p> <p style="margin:0px;">SA Binaries in the JDK 69</p> <p style="margin:0px;">JDK Versions with Complete SA Binaries 69</p> <p style="margin:0px;">How the SA Understands HotSpot VM Data Structures 70</p> <p style="margin:0px;">SA Version Matching 71</p> <p style="margin:0px;">The Serviceability Agent Debugging Tools 72</p> <p style="margin:0px;">Core Dump or Crash Dump Files 108</p> <p style="margin:0px;">Debugging Transported Core Files 109</p> <p style="margin:0px;">System Properties for the Serviceability Agent 111</p> <p style="margin:0px;">Environment Variables for the Serviceability Agent 112</p> <p style="margin:0px;">JDI Implementation 113</p> <p style="margin:0px;">Extending Serviceability Agent Tools 115</p> <p style="margin:0px;">Serviceability Agent Plugin for VisualVM 117</p> <p style="margin:0px;">Troubleshooting Problems Using the SA 123</p> <p style="margin:0px;">&nbsp;</p> <p style="margin:0px;">Appendix: Additional HotSpot VM Command-Line Options of Interest 145</p> <p style="margin:0px;">&nbsp;</p> <p style="margin:0px;"></p> <p style="margin:0px;">Index 155&nbsp;</p>