105 lines
1.8 KiB
Plaintext
105 lines
1.8 KiB
Plaintext
.TH xvmstat 1m "$Date:: 2007-08-05 #$" "USER COMMANDS"
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.SH NAME
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xvmstat \- extended vmstat demo in DTrace. Uses DTrace.
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.SH SYNOPSIS
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.B xvmstat
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[interval [count]]
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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, with a few extra fields.
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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 - needs 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 xvmstat
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.TP
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Print every 5 seconds, 6 times,
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#
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.B xvmstat
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5 6
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.PP
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.SH FIELDS
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.TP
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w
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swapped out LWPs, number
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.TP
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swap
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virtual memory free, Mb
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.TP
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free
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free RAM, Mb
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.TP
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re
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page reclaims, pages
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.TP
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maj
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major faults, pages
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.TP
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mf
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minor faults, pages
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.TP
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cow
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copy-on-write faults, pages
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.TP
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pro
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protection faults, pages
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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, pages
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.TP
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epo
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executable page outs, pages
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.TP
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epf
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executable frees, pages
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.TP
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api
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anonymous page ins, pages
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.TP
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apo
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anonymous page outs, pages
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.TP
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apf
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anonymous frees, pages
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.TP
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fpi
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filesystem page ins, pages
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.TP
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fpo
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filesystem page outs, pages
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.TP
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fpf
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filesystem frees, pages
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.PP
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.SH NOTES
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Most of the statistics are in units of pages, unlike the
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original vmstat command which sometimes uses kilobytes.
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All page values are per second values.
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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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xvmstat will run until Ctrl\-C is hit, or until the count argument
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has been satisfied.
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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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