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86 lines
1.6 KiB
Plaintext
86 lines
1.6 KiB
Plaintext
.TH vmstat-p.d 1m "$Date: 2015/09/30 22:01:09 $" "USER COMMANDS"
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.SH NAME
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vmstat-p.d \- vmstat -p demo in DTrace. Uses DTrace.
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.SH SYNOPSIS
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.B vmstat-p.d
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.SH DESCRIPTION
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This has been written to demonstrate fetching similar data as vmstat
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from DTrace. This program is intended as a starting point for other
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DTrace scripts, by beginning with familiar statistics.
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Since this uses DTrace, only the root user or users with the
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dtrace_kernel privilege can run this command.
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.SH OS
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Solaris
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.SH STABILITY
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unstable - uses various kernel symbols.
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.SH EXAMPLES
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.TP
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Print virtual memory statistics every second,
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#
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.B vmstat-p.d
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.PP
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.SH FIELDS
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.TP
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swap
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virtual memory free, Kbytes
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.TP
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free
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free RAM, Kbytes
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.TP
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re
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page reclaims, Kbytes
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.TP
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mf
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minor faults, Kbytes
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.TP
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sr
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scan rate, pages
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.TP
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epi
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executable page ins, Kbytes
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.TP
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epo
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executable page outs, Kbytes
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.TP
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epf
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executable frees, Kbytes
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.TP
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api
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anonymous page ins, Kbytes
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.TP
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apo
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anonymous page outs, Kbytes
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.TP
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apf
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anonymous frees, Kbytes
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.TP
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fpi
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filesystem page ins, Kbytes
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.TP
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fpo
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filesystem page outs, Kbytes
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.TP
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fpf
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filesystem frees, Kbytes
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.PP
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.SH NOTES
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Most of the statistics are in units of kilobytes, unlike the
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original vmstat command which sometimes uses page counts.
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As this program does not use Kstat, there is no summary since boot line.
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Free RAM is both free free + cache free.
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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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Docs directory. The DTraceToolkit docs may include full worked
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examples with verbose descriptions explaining the output.
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.SH EXIT
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vmstat-p.d will run until Ctrl\-C is hit.
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.SH AUTHOR
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Brendan Gregg
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[Sydney, Australia]
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.SH SEE ALSO
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vmstat(1M), dtrace(1M)
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