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52 lines
1.2 KiB
Plaintext
52 lines
1.2 KiB
Plaintext
.TH j_cputime.d 1m "$Date: 2015/09/30 22:01:09 $" "USER COMMANDS"
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.SH NAME
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j_cputime.d - measure Java on-CPU times for different types of operation.
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.SH SYNOPSIS
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.B j_cputime.d
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[top]
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.SH DESCRIPTION
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This traces activity from all Java processes on the system with hotspot
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provider support (1.6.0). Method calls are only visible when using the
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flag "+ExtendedDTraceProbes". eg, java -XX:+ExtendedDTraceProbes classfile
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The "top" optional argument will truncate the output for each report
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section to that many lines, with a default of 10.
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.SH OS
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Solaris
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.SH STABILITY
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Evolving - uses the DTrace hotspot provider, which may change
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as additional features are introduced. Check Java/Readme
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to see what version these scripts are based on.
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.SH EXAMPLES
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.TP
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Default output,
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#
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.B j_cputime.d
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.PP
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.SH FIELDS
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.TP
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PID
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Process ID
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.TP
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TYPE
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Type of call (method/gc/total)
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.TP
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NAME
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Name of call
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.TP
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TOTAL
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Total on-CPU time for calls (us)
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.PP
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.SH DOCUMENTATION
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See the DTraceToolkit for further documentation under the
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Examples, Notes and Docs directories. The example files may be
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especially useful as they aim to demonstrate how to interpret
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the output.
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.SH EXIT
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j_cputime.d will run until Ctrl-C is hit.
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.SH AUTHOR
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Brendan Gregg
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[CA, USA]
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.SH SEE ALSO
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dtrace(1M)
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