j_cputime.d 1m "$Date:: 2007-10-03 #$" "USER COMMANDS"
NAME
j_cputime.d - measure Java on-CPU times for different types of operation.
SYNOPSIS
j_cputime.d [top]
DESCRIPTION
This traces activity from all Java processes on the system with hotspot provider support (1.6.0). Method calls are only visible when using the flag "+ExtendedDTraceProbes". eg, java -XX:+ExtendedDTraceProbes classfile The "top" optional argument will truncate the output for each report section to that many lines, with a default of 10.
OS
Solaris
STABILITY
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.
EXAMPLES

Default output, # j_cputime.d

FIELDS

PID Process ID

TYPE Type of call (method/gc/total)

NAME Name of call

TOTAL Total on-CPU time for calls (us)

DOCUMENTATION
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.
EXIT
j_cputime.d will run until Ctrl-C is hit.
AUTHOR
Brendan Gregg [CA, USA]
SEE ALSO
dtrace(1M)