47 lines
1.1 KiB
Plaintext
47 lines
1.1 KiB
Plaintext
.TH diskhits 1m "$Date:: 2007-08-05 #$" "USER COMMANDS"
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.SH NAME
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diskhits \- disk access by file offset. Uses DTrace.
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.SH SYNOPSIS
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.B diskhits pathname
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.SH DESCRIPTION
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This prints how a file was accessed, the locations on a distribution plot.
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This is for the cache misses only - the file activity that resulted in
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disk events.
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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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stable - needs the io provider.
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.SH EXAMPLES
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.TP
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Sample /var/adm/messages disk activity,
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#
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.B diskhits /var/adm/messages
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.PP
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.SH FIELDS
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.TP
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Location (KB)
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the file offset of the disk activity, Kbytes
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.TP
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Size (KB)
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size of the disk activity, Kbytes
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.TP
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Total RW
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Total disk activity, reads + writes
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.PP
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.SH BASED ON
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/usr/demo/dtrace/applicat.d
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.PP
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.SH DOCUMENTATION
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DTrace Guide "io Provider" chapter (docs.sun.com)
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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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diskhits will sample until Ctrl\-C is hit.
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.SH SEE ALSO
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dtrace(1M)
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