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%-------------------------------------------------------------------------------
% qcow2_performance.tex - shows how QCOW2 performs compared to qemu-nbd
%-------------------------------------------------------------------------------
% author : Manuel Bentele
% date : Aug 31, 2019
% copyright: (c) 2019 Manuel Bentele
%-------------------------------------------------------------------------------
\begin{tikzpicture}
\pgfplotstableread[
col sep = semicolon
]{../measurements/fio_results.csv}\resultdata
\begin{axis}[
height = 5cm,
width = 0.95\textwidth,
ybar,
ymin = 0.75,
ymax = 4.25,
ylabel = {Throughput gain factor},
legend cell align = {left},
ymajorgrids,
x tick label style = {rotate = 30, anchor = north east,
align = right},
xticklabels from table={\resultdata}{Type},
xtick = data,
axis lines = left,
enlarge x limits = 0.1,
]
\addplot table[y = {Factor_512}, x expr=\coordindex]{\resultdata};
\addlegendentry{512~byte operation};
\addplot table[y = {Factor_4096}, x expr=\coordindex]{\resultdata};
\addlegendentry{4096~byte operation};
\end{axis}
\end{tikzpicture}
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