HP jmeter Software for -UX manual Start and stop verbose GC data 0.14 0.02

Table A-2 HPjmeter Features Available by JVM Version (continued)

HPjmeter Feature		JVM		Command Line Option or Action
	Java 1.4x	Java 5.x	Java 6.x
Start and stop verbose GC data	—	X (5.0.14)	X (6.0.02)	kill -PROF pid or kill -21
collection with zero preparation				pid
Obtain allocation site statistics	—	X (5.0.14)	X (6.0.02)	-Xverbosegc and
and -Xverbosegc data				-XX:+PrintAllocStatistics
together

* This HPjmeter switch is optional when running Java 6.0.03 or later.

Default Location of Xverbosegc and Allocation Site Statistics Data Files

Table A-3 GC Data File and Allocation Site Statistics Locations By Command Option Selection

JVM Option(s) Used	Action Used		Resulting Data Location
-Xverbosegc and	No special action		Standard out
-XX:+PrintAllocStatistics
-Xverbosegc:myfile.vgc and	No special action		myfile.vgc
-XX:+PrintAllocStatistics
-XX:+PrintAllocStatistics	No special action		Standard out
No special option	kill -21 pid		java_pid.vgc
-XX:+PrintAllocStatistics	kill -21 pid		java_pid.vgc
-Xverbosegc and	kill -21	pid	Standard out
-XX:+PrintAllocStatistics
-Xverbosegc:myfile.vgc and	kill -21	pid	myfile.vgc
-XX:+PrintAllocStatistics
-Xverbosegc	kill -21	pid	Standard out
-Xverbosegc:myfile.vgc	kill -21	pid	myfile.vgc

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