\begin{table}[ht!]
	\centering
    \caption{Comparison of the performance of timer functions. All tests were performed with a rate of \SI{100}{\kilo\hertz}, with 10 64-bit floating-point numbers per sample, \gls{rc} as service type, and with the InfiniBand node-type as node-type under test. Every test contains \SI{250000}{} samples.}
	\vspace{3mm}

	\label{tab:timer_comparison}
	 \begin{tabular}{c | l l} 
	 \hlineB{3}
	 \Tstrut
        \textbf{optimized environment} & \multicolumn{2}{c}{\textbf{missed samples}}
     \Bstrut
     \\
     \Tstrut
                 & \multicolumn{1}{c}{\textbf{\texttt{timerfd}}} & \multicolumn{1}{c}{\textbf{\gls{tsc}}} \\
	 \hhline{=|==}
	 \Tstrut
         \NO         & $\frac{12085}{250000}\cdot\SI{100}{\percent} = \SI{4.83}{\percent}$  & $\frac{3035}{250000}\cdot\SI{100}{\percent} = \SI{1.21}{\percent}$
     \Bstrutlarger
     \\
     \Tstrut
         \OK         & $\frac{1692}{250000}\cdot\SI{100}{\percent} = \SI{0.68}{\percent}$ & \greencell{$\frac{1244}{250000}\cdot\SI{100}{\percent} = \SI{0.50}{\percent}$}
     \Bstrutlarger
     \\
	\hlineB{3}
	\end{tabular}
\end{table}
