JVM_FindSignal function continuously allocates native memory

by

JVM_FindSignal does not allocate memory at all. And this function is not typically called often at application run-time.

It seems your JDK installation does not include debug symbols, so that jemalloc profiler cannot find the correct function name and just takes the nearest public symbol from libjvm.so. JVM_FindSignal is just one of these random symbols. Other entries in the profile also look wrong. E.g. AsyncGetCallTrace which is accounted for 87.8% also allocates nothing at all.

Installing a separate package with JDK debug symbols might help.

On Debian / Ubuntu:

apt install openjdk-8-dbg

On RHEL / CentOS:

debuginfo-install java-1.8.0-openjdk

More Related Contents:

  1. Real differences between “java -server” and “java -client”?
  2. How do I set the proxy to be used by the JVM
  3. Where are static methods and static variables stored in Java?
  4. Memory address of variables in Java
  5. Does the JVM prevent tail call optimizations?
  6. Java – Get a list of all Classes loaded in the JVM
  7. What is the default encoding of the JVM?
  8. What is the difference between JVM, JDK, JRE & OpenJDK?
  9. What does JVM flag CMSClassUnloadingEnabled actually do?
  10. Class JavaLaunchHelper is implemented in both … libinstrument.dylib. One of the two will be used. Which one is undefined
  11. Shared Memory between two JVMs
  12. Setting JVM heap size at runtime
  13. Registering multiple keystores in JVM [duplicate]
  14. What does -XX:MaxPermSize do?
  15. What does a JVM have to do when calling a native method?
  16. How to set JVM parameters for Junit Unit Tests?
  17. out in System.out.println()
  18. Java “Virtual Machine” vs. Python “Interpreter” parlance?
  19. Distinguishing between Java threads and OS threads?
  20. JVM sending back memory to OS [duplicate]
  21. Clarification of meaning new JVM memory parameters InitialRAMPercentage and MinRAMPercentage
  22. What’s the penalty for Synthetic methods?
  23. Garbage collection on intern’d strings, String Pool, and perm-space
  24. Java: non-heap-memory analyzes
  25. Understanding metaspace line in JVM heap printout
  26. What is the size of methods that JIT automatically inlines?
  27. Is it good to set the max and min JVM heap size the same?
  28. Which real-time (RTSJ) JVM is most preferred? [closed]
  29. Measuring time spent on GC
  30. Release java memory for OS at runtime

Leave a Comment