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Diffstat (limited to 'doc/btt.1')
| -rw-r--r-- | doc/btt.1 | 31 |
1 files changed, 31 insertions, 0 deletions
@@ -30,6 +30,8 @@ btt \- analyse block i/o traces produces by blktrace .br [ \-L <\fIfreq\fR> | \-\-periodic\-latencies=<\fIfreq\fR> ] .br +[ \-m <\fIoutput name\fR> | \-\-seeks\-per\-second=<\fIoutput name\fR> ] +.br [ \-M <\fIdev map\fR> | \-\-dev\-maps=<\fIdev map\fR> .br [ \-o <\fIoutput name\fR> | \-\-output\-file=<\fIoutput name\fR> ] @@ -58,7 +60,11 @@ btt \- analyse block i/o traces produces by blktrace .br [ \-V | \-\-version ] .br +[ \-X | \-\-easy\-parse\-avgs ] +.br [ \-z <\fIoutput name\fR> | \-\-q2d\-latencies=<\fIoutput name\fR> ] +.br +[ \-Z | \-\-do\-active ] .SH DESCRIPTION @@ -199,6 +205,15 @@ Q2C and D2C latencies. The frequency specified will regulate how often an average latency is output -- a floating point value expressing seconds. .RE +.B \-m <\fIoutput name\fR> +.br +.B \-\-seeks\-per\-second=<\fIoutput name\fR> +.RS 4 +Trigger btt to output seeks-per-second information. The first column will +contain a time value (seconds), and the second column will indicate the +number of seeks per second at that point. +.RE + .B \-M <\fIdev map\fR> .br .B \-\-dev\-maps=<\fIdev map\fR> @@ -330,6 +345,14 @@ Shows the version of btt. Requests a more verbose output. .RE +.B \-X +.br +.B \-\-easy\-parse\-avgs +.RS 4 +Provide data in an easy-to-parse form and write it to a file +with .avg exentsion +.RE + .B \-z <\fIoutput name\fR> .br .B \-\-q2d\-latencies=<\fIoutput name\fR> @@ -339,6 +362,14 @@ respectively. The supplied argument provides the basis for the output name for each device. .RE +.B \-Z +.br +.B \-\-do\-active +.RS 4 +The \-Z will output files containing data which can be plotted showing +per\-device (and total system) I/O activity. +.RE + .SH AUTHORS \fIbtt\fR was written by Alan D. Brunelle. This man page was created |