IBM User Guide for Java V7 on Windows > Troubleshooting and support > Using diagnostic tools > Using the JVMTI

IBM JVMTI extensions - API reference

Reference information for the IBM SDK extensions to the JVMTI.

Use the information in this section to control JVM functions using the IBM JVMTI interface.

• Querying JVM dump options
  You can query the JVM dump options that are set for a JVM using the QueryVmDump() API.
• Setting JVM dump options
  You can set dump options using the same syntax as the -Xdump command-line option.
• Triggering a JVM dump
  You can specify the type of dump you want using the TriggerVmDump() API.
• Resetting JVM dump options
  Dump options can be reset using the ResetVmDump() API.
• Event function for dump start
  When a dump starts, a JVMTI event function is called.
• Event function for dump end
  When a dump ends, a JVMTI event function is called.
• Setting JVM trace options
  You can set trace options for the JVM using the same syntax as the -Xtrace command-line option.
• Querying JRE native memory categories
  You can query the total native memory consumption of the JRE for each memory category using the GetMemoryCategories() API.
• Querying JVM log options
  You can query the JVM log options that are set for a JVM using the QueryVmLogOptions() API.
• Setting JVM log options
  You can set the log options for a JVM using the same syntax as the -Xlog command-line option.
• Finding shared class caches
  You can search for caches using the IterateSharedCaches() API.
• Removing a shared class cache
  You can remove a shared class cache using the DestroySharedCache() API.
• Subscribing to verbose garbage collection logging
  You can subscribe to verbose Garbage Collection (GC) data logging through an IBM JVMTI extension.
• Unsubscribing from verbose garbage collection logging
  You can unsubscribe from verbose Garbage Collection (GC) data logging through an IBM JVMTI extension.

Parent: Using the JVMTI

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