aboutsummaryrefslogtreecommitdiff
path: root/btreplay/doc/abstract.tex
blob: 314d82033cafe5800d0817790ca5828a7cd6a972 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
%
% Copyright (C) 2007 Alan D. Brunelle <Alan.Brunelle@hp.com>
%
%  This program is free software; you can redistribute it and/or modify
%  it under the terms of the GNU General Public License as published by
%  the Free Software Foundation; either version 2 of the License, or
%  (at your option) any later version.
%
%  This program is distributed in the hope that it will be useful,
%  but WITHOUT ANY WARRANTY; without even the implied warranty of
%  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
%  GNU General Public License for more details.
%
%  You should have received a copy of the GNU General Public License
%  along with this program; if not, write to the Free Software
%  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
%
%  vi :set textwidth=75
%
The \texttt{btrecord} and \texttt{btreplay} tools provide the ability to
record and replay IOs captured by the \texttt{blktrace} utility. Attempts
are made to maintain ordering, CPU mappings and time-separation of IOs. The
general workflow is expected to be:

\begin{enumerate}
  \item Initiate \texttt{blktrace} to capture traces
  \item Generate traces\ldots
  \item Stop \texttt{blktrace}
  \item Run \texttt{btrecord} to convert traces into IO records 
  \item Utilize \texttt{btreplay} to replay IOs 
\end{enumerate}

This document will discuss the operating characteristics of
\texttt{btreplay} and provide detailed command line option descriptions.