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Diffstat (limited to 'doc/blktrace.tex')
| -rw-r--r-- | doc/blktrace.tex | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/doc/blktrace.tex b/doc/blktrace.tex index 54fe451..4d8278e 100644 --- a/doc/blktrace.tex +++ b/doc/blktrace.tex @@ -389,7 +389,10 @@ Short & Long & Description \\ \hline\hline -d \emph{dev} & --dev=\emph{dev} & Adds \emph{dev} as a device to trace \\ \hline -k & --kill & Kill on-going trace \\ \hline -n \emph{num-sub} & --num-sub=\emph{num-sub} & Specifies number of buffers to use \\ \hline --o \emph{file} & --output=\emph{file} & Prepend \emph{file} to output file name(s) \\ \hline +-o \emph{file} & --output=\emph{file} & Prepend \emph{file} to output file name(s) \\ + & & \textbf{This only works when using a single device} \\ + & & \textbf{or when piping the output via \texttt{-o -}} \\ + & & \textbf{with multiple devices.} \\ \hline -r \emph{rel-path} & --relay=\emph{rel-path} & Specifies debugfs mount point \\ \hline -V & --version & Outputs version \\ \hline -w \emph{seconds} & --stopwatch=\emph{seconds} & Sets run time to the number of seconds specified \\ \hline |