Hiroaki Mihara <hmihara@xxxxxxxxxx> writes: > The functionality of printing out absolute timestamps has been > implemented in code but not documented in man pages. > > When comparing the timings of related events with block I/O traces, > the absolute timestams play a key role. I think that the > documentation of this might be beneficial to blktrace users. > > The related commit was done in 2006 as follows, > >> commit 7bd4fd0a4fca645bb50a641afac1e460a4e32dfd >> Author: Olaf Kirch <okir@xxxxxx> >> Date: Fri Dec 1 10:34:11 2006 +0100 >> >> [PATCH] Add timestamp support >> >> Signed-off-by: Jens Axboe <jens.axboe@xxxxxxxxxx> >> > > URL of the above patch, > https://git.kernel.org/pub/scm/linux/kernel/git/axboe/blktrace.git/commit/?id=7bd4fd0a4fca645bb50a641afac1e460a4e32dfd > > Signed-off-by: Hiroaki Mihara <hmihara@xxxxxxxxxx> > --- > doc/blkparse.1 | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/doc/blkparse.1 b/doc/blkparse.1 > index 627b7b1..e494b6e 100644 > --- a/doc/blkparse.1 > +++ b/doc/blkparse.1 > @@ -368,6 +368,9 @@ Elapsed value in microseconds (\fI\-t\fR command line option) > .IP \fBU\fR 4 > Payload unsigned integer > > +.IP \fBz\fR 4 > +The absolute time, as local time in your time zone, with no date displayed > + > .PP > Note that the user can optionally specify field display width, and optionally a > left-aligned specifier. These precede field specifiers, with a '%' character, Acked-by: Jeff Moyer <jmoyer@xxxxxxxxxx>
