.TH BTRACE 8 "March 6, 2007" "blktrace git\-20070306202522" "" .SH NAME btrace \- verifies an output file produced by blkparse .SH SYNOPSIS .B Usage: btrace [\-s] [\-t] [\-w \fIN\fN] [\-n \fIN\fR] [\-b \fIN\fR] [\-a <\fItrace\fR>...] <\fIdev\fR>... .br .SH DESCRIPTION The \fIbtrace\fR script provides a quick and easy way to to live tracing of block devices. All it does is calling \fIblktrace\fR on the specified devices and piping its output through \fIblkparse\fR for formatting. See blktrace (8) for more in-depth information about how \fIblktrace\fR works. .SH OPTIONS .HP 4 .B \-s Displays data sorted by program (see \fIblkparse\fR (1)). .HP 4 .B \-t Display time deltas per IO (see \fIblkparse\fR (1)). .HP 4 .B \-w \fIN\fR Sets run time to the number of seconds specified (see \fIblktrace\fR (8)). .HP 4 .B \-n \fIN\fR Specifies the number of buffers to use (see \fIblktrace\fR (8)). .HP 4 .B \-b \fIN\fR Specifies buffer size for event extraction (scaled by 1024) (see \fIblktrace\fR (8)). .HP 4 .B \-a <\fItrace\fR>... Add mask to current filter (see \fIblktrace\fR (8)). .HP 4 .B <\fIdev\fR> Specifies the device to trace. .SH EXAMPLE Simply running % blktrace /dev/sda will show a trace of the device \fI/dev/sda\fR. .SH AUTHORS \fIblkparse\fR was written by Jens Axboe, Alan D. Brunelle and Nathan Scott. This man page was created from the \fIblktrace\fR documentation by Bas Zoetekouw. .SH "REPORTING BUGS" Report bugs to .SH COPYRIGHT Copyright \(co 2006 Jens Axboe, Alan D. Brunelle and Nathan Scott. .br This is free software. You may redistribute copies of it under the terms of the GNU General Public License . There is NO WARRANTY, to the extent permitted by law. .br This manual page was created for Debian by Bas Zoetekouw. It was derived from the documentation provided by the authors and it may be used, distributed and modified under the terms of the GNU General Public License, version 2. .br On Debian systems, the text of the GNU General Public License can be found in /usr/share/common\-licenses/GPL\-2. .SH "SEE ALSO" blktrace (8), blkparse (1), verify_blkparse (1), blkrawverify (1), btt (1)