From 5798ffb25496ab8dcb419a2bdc5418802d7f10fc Mon Sep 17 00:00:00 2001 From: Edward Shishkin Date: Fri, 22 Oct 2010 20:52:29 +0200 Subject: blktrace: btt documentation update Fixup for RH bugzilla 595628. Document btt options: -m (--seeks-per-second); -X (--easy-parse-avgs). Signed-off-by: Edward Shishkin Signed-off-by: Jens Axboe --- doc/btt.1 | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/doc/btt.1 b/doc/btt.1 index 60d28ac..28cf912 100644 --- a/doc/btt.1 +++ b/doc/btt.1 @@ -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> ] @@ -58,6 +60,8 @@ 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 ] @@ -201,6 +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> @@ -332,6 +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> -- cgit v1.2.3