j_thread.d - snoop Java thread execution using DTrace. j_thread.d This traces activity from all Java processes on the system with hotspot provider support (1.6.0). Solaris Evolving - uses the DTrace hotspot provider, which may change as additional features are introduced. Check Java/Readme to see what version these scripts are based on.

Default output, # j_thread.d

TIME Time string

PID Process ID

TID Thread ID

THREAD Thread name

=> thread start

<= thread end

See the DTraceToolkit for further documentation under the Examples, Notes and Docs directories. The example files may be especially useful as they aim to demonstrate how to interpret the output. j_thread.d will run until Ctrl-C is hit. Brendan Gregg [CA, USA] dtrace(1M)