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| author | Alan D. Brunelle <alan.brunelle@hp.com> | 2008-10-16 12:03:45 -0400 |
|---|---|---|
| committer | Alan D. Brunelle <alan.brunelle@hp.com> | 2008-10-16 12:05:46 -0400 |
| commit | 2baef5087c57d39ee2fc488cd52348f61f32b1fc (patch) | |
| tree | d68dbf29fbf2ba895dd7cde1033c2f244e1198be /doc | |
| parent | 4ae2c3c6215de3f9016b5211ac83893cb061b1e1 (diff) | |
| download | blktrace-2baef5087c57d39ee2fc488cd52348f61f32b1fc.tar.gz blktrace-2baef5087c57d39ee2fc488cd52348f61f32b1fc.tar.bz2 | |
Added in -L option - output periodic latency information
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/btt.1 | 11 |
1 files changed, 11 insertions, 0 deletions
@@ -27,6 +27,8 @@ btt \- analyse block i/o traces produces by blktrace .br [ \-l <\fIoutput name\fR> | \-\-d2c\-latencies=<\fIoutput name\fR> ] .br +[ \-L <\fIfreq\fR> | \-\-periodic\-latencies=<\fIfreq\fR> ] +.br [ \-M <\fIdev map\fR> | \-\-dev\-maps=<\fIdev map\fR> .br [ \-o <\fIoutput name\fR> | \-\-output\-file=<\fIoutput name\fR> ] @@ -181,6 +183,15 @@ respectively. The supplied argument provides the basis for the output name for each device. .RE +.B \-L <\fIfreq\fR> +.br +.B \-\-periodic\-latencies=<\fIfreq\fR> +.RS 4 +The \-L option allows one to output periodic latency information for both +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 <\fIdev map\fR> .br .B \-\-dev\-maps=<\fIdev map\fR> |