btrace: bring back possibility to toggle statistics at end of trace
PATCH 25/31 btrace: bring back possibility to toggle statistics at end of trace
First, blkparse was internally called in quiet mode by default. v0.99.1 commit eea01dfc2e0e ("[PATCH] btrace: don't be quiet by default, and fix -h parameter") changed the default.
v1.0.1 commit bc93336f08a3 ("fix up btrace options & manpage") removed the no longer functional -S option.
Simply surface -q option of blkparse for use in btrace to suppress stats. Otherwise it keeps printing stats by default.
Signed-off-by Steffen Maier <[email protected]>
--- btrace | 5 +++-- doc/blktrace.tex | 2 ++ doc/btrace.8 | 6 +++++- 3 files changed, 10 insertions(+), 3 deletions(-)
btrace +3 -2
@@ -8,10 +8,10 @@ TRACEOPTS="" PARSEOPTS="-b100000" -USAGE="Usage: btrace [-s] [-t] [-h] [-v] [-w N] [-n N] [-b N] [-a <trace>...] [-r <dbg mnt>] <dev>..." +USAGE="Usage: btrace [-s] [-t] [-h] [-v] [-q] [-w N] [-n N] [-b N] [-a <trace>...] [-r <dbg mnt>] <dev>..." DIRNAME=`dirname $0` -while getopts "a:w:n:b:r:sthv" c +while getopts "a:w:n:b:r:sthvq" c do case $c in a) TRACEOPTS=$TRACEOPTS" -a "$OPTARG" ";;
@@ -23,6 +23,7 @@ do t) PARSEOPTS=$PARSEOPTS" -t";; h) PARSEOPTS=$PARSEOPTS" -h";; v) PARSEOPTS=$PARSEOPTS" -v";; + q) PARSEOPTS=$PARSEOPTS" -q";; \?) echo $USAGE 1>&2 exit 2 ;;
doc/blktrace.tex +2 -0
@@ -222,6 +222,8 @@ default\footnote{blktrace v0.99.1 eea01dfc2e0e (``[PATCH] btrace: don't be quiet by default, and fix -h parameter'')} and the \emph{-S} option does not exist any more\footnote{blktrace v1.0.1 bc93336f08a3 (``fix up btrace options \& manpage'')}. +An inverse quiet option \emph{-q} allows to toggle off statistics\footnote{ + blktrace newer than 1.2.0}. \subsection{blktrace -- SCSI commands} \label{sec:pc-blktrace}
doc/btrace.8 +5 -1
@@ -6,7 +6,7 @@ btrace \- perform live tracing for block devices .SH SYNOPSIS -.B btrace [\-s] [\-t] [\-h] [\-v] [\-w \fIN\fN] [\-n \fIN\fR] [\-b \fIN\fR] [\-r \fI<dbg mnt>\fR] [\-a <\fItrace\fR>...] <\fIdev\fR>... +.B btrace [\-s] [\-t] [\-h] [\-v] [\-q] [\-w \fIN\fN] [\-n \fIN\fR] [\-b \fIN\fR] [\-r \fI<dbg mnt>\fR] [\-a <\fItrace\fR>...] <\fIdev\fR>... .br
@@ -35,6 +35,10 @@ Hash processes by name, not PID (see \fIblkparse\fR (1)). .B \-v Be more verbose for marginal errors (see \fIblkparse\fR (1)). +.HP 4 +.B \-q +Do not print any statistics at end of trace (see \fIblkparse\fR (1)). + .HP 4 .B \-w \fIN\fR Sets run time to the number of seconds specified (see \fIblktrace\fR (8)).
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2.14.2