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Diffstat (limited to 'Man/man1m/rfsio.d.1m')
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diff --git a/Man/man1m/rfsio.d.1m b/Man/man1m/rfsio.d.1m new file mode 100644 index 000000000000..ecbb786a84e6 --- /dev/null +++ b/Man/man1m/rfsio.d.1m @@ -0,0 +1,41 @@ +.TH rfsio.d 1m "$Date:: 2007-08-05 #$" "USER COMMANDS" +.SH NAME +rfsio.d \- read FS I/O stats, with cache miss rate. Uses DTrace. +.SH SYNOPSIS +.B rfsio.d +.SH DESCRIPTION +This script provides statistics on the number of reads and the bytes +read from filesystems (logical), and the number of bytes read from +disk (physical). A summary is printed every five seconds by filesystem. + +A total miss-rate is also provided for the file system cache. + +Since this uses DTrace, only the root user or users with the +dtrace_kernel privilege can run this command. +.SH OS +Solaris +.SH STABILITY +unstable - this script uses fbt provider probes which may change for +future updates of the OS, invalidating this script. Please read +Docs/Notes/ALLfbt_notes.txt for further details about these fbt scripts. +.SH EXAMPLES +.TP +Print a summary of activity every five seconds. +# +.B rfsio.d +.PP +.SH IDEA +Richard McDougall, Solaris Internals 2nd Ed, FS Chapter. +.PP +.SH DOCUMENTATION +See the DTraceToolkit for further documentation under the +Docs directory. The DTraceToolkit docs may include full worked +examples with verbose descriptions explaining the output. +.SH EXIT +rfsio.d will run until Ctrl\-C is hit. +.SH AUTHOR +Brendan Gregg +[Sydney, Australia] +.SH SEE ALSO +rfileio.d(1M), dtrace(1M) + |