Java Linux Memory

Internal

• Linux Memory Management
• Linux Process Information
• Java Memory Concepts | Non-Heap Memory

Information on how Much Physical Memory a JVM Uses

Once you have the PID, you can look in:

/proc/<PID>/status

Per the documentation:

• VmPeak: Peak virtual memory size.

• VmSize: Virtual memory size.

• VmLck: Locked memory size.

• VmHWM: Peak resident set size ("high water mark").

• VmRSS: Resident set size.

• VmData, VmStk, VmExe: Size of data, stack, and text segments.

• VmLib: Shared library code size.

• VmPTE: Page table entries size (since Linux 2.6.10).

• Threads: Number of threads in process containing this thread.

More Info

"man proc" has a ton of information we can pull.

Script

https://github.com/NovaOrdis/shell-tools/blob/master/jboss-os-memory-stats.sh