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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLE | AUTHORS | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON |
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BTRACE(8) BTRACE(8)
btrace - perform live tracing for block devices
btrace [-s] [-t] [-w N] [-n N] [-b N] [-r <dbg mnt>] [-a
<trace>...] <dev>...
The btrace script provides a quick and easy way to do live
tracing of block devices. It calls blktrace on the specified
devices and pipes the output through blkparse for formatting.
See blktrace (8) for more in-depth information about how blktrace
works.
-s Displays data sorted by program (see blkparse (1)).
-t Displays time deltas per IO (see blkparse (1)).
-w N Sets run time to the number of seconds specified (see
blktrace (8)).
-n N Specifies the number of buffers to use (see blktrace (8)).
-b N Specifies buffer size for event extraction (scaled by 1024)
(see blktrace (8)).
-r <dbg mnt> Specifies the debugfs mountpoint.
-a <trace>... Adds mask to current filter (see blktrace (8)).
<dev> Specifies the device to trace.
Simply running
% btrace /dev/sda
will show a trace of the device /dev/sda.
blkparse was written by Jens Axboe, Alan D. Brunelle and Nathan
Scott. This man page was created from the blktrace documentation
by Bas Zoetekouw.
Report bugs to <linux-btrace@vger.kernel.org>
Copyright © 2006 Jens Axboe, Alan D. Brunelle and Nathan Scott.
This is free software. You may redistribute copies of it under
the terms of the GNU General Public License
<http://www.gnu.org/licenses/gpl.html>. There is NO WARRANTY, to
the extent permitted by law.
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.
On Debian systems, the text of the GNU General Public License can
be found in /usr/share/common-licenses/GPL-2.
blktrace(8), blkparse(1), verify_blkparse(1), blkrawverify(1),
btt(1)
This page is part of the blktrace (Linux block layer I/O tracer)
project. Information about the project can be found at [unknown
-- if you know, please contact man-pages@man7.org] It is not
known how to report bugs for this man page; if you know, please
send a mail to man-pages@man7.org. This page was obtained from
the project's upstream Git repository
⟨https://git.kernel.org/pub/scm/linux/kernel/git/axboe/blktrace.git⟩
on 2024-06-14. (At that time, the date of the most recent commit
that was found in the repository was 2024-06-12.) If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for
the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original
manual page), send a mail to man-pages@man7.org
blktrace git-20070306202522 March 6, 2007 BTRACE(8)
Pages that refer to this page: blkparse(1), blkrawverify(1), verify_blkparse(1), blkiomon(8), blktrace(8)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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