9. Product JavaVM Functionality

The product JavaVM is JavaVM that is provided in Application Server. You can use the product JavaVM for acquiring the data at error time and the information used for tuning. This chapter describes about the functionality provided by the product JavaVM. For details about the Explicit Memory Management functionality provided by the product JavaVM, see 8. Preventing the Occurrence of Full Garbage Collection by using the Explicit Memory Management Functionality in the uCosminexus Application Server Expansion Guide.

Organization of this chapter

9.1 Organization of this chapter

9.2 Overview of the product JavaVM functionality

9.3 Class-wise statistical functionality

9.4 Instance statistical functionality

9.5 STATIC member statistical functionality

9.6 Reference-related information output functionality

9.7 Pre-statistical garbage collection selection functionality

9.8 Unused objects statistical functionality in the Tenured area

9.9 Base object list output functionality for Tenured augmentation factors

9.10 Class-wise statistical information analysis functionality

9.11 Tenuring distribution information output functionality of the Survivor area

9.12 hndlwrap functionality

9.13 Functionality to set the upper limit of allocation size of C heap during JIT compilation

9.14 Functionality to set the upper limit of the number of threads

9.15 Notes on using the product JavaVM functionality (in UNIX)