\begin{table}[ht!] \centering \caption{$\tilde{t}_{lat}$ [\SI{}{\micro\second}] as reported by \texttt{ib\_send\_lat} for different service types and queue pair types with a varying message size. All communication was sent with the normal \textit{send} operation. Every test contained 1000 iterations and messages that were smaller than \SI{188}{\byte} were sent inline.}\label{tab:qp_performance} \vspace{3mm} \begin{tabular}{l r | c c c c c c} \hlineB{3} \Tstrut \textbf{service type} & \textbf{\gls{qp} type} & \multicolumn{6}{c}{\textbf{message size}} \Bstrut \\ \Tstrut & & \SI{32}{\byte} & \SI{128}{\byte} & \SI{512}{\byte} & \SI{2}{\kilo\byte} & \SI{8}{\kilo\byte} & \SI{32}{\kilo\byte} \\ \hhline{==|======} \Tstrut \multirow{2}{*}{\gls{rc}} & regular & 0.77 & 0.86 & 1.31 & 1.68 & 2.60 & 4.56 \Bstrut \\ \Tstrut & \gls{rdma} \gls{cm} & 0.81 & 0.90 & 1.33 & 1.73 & 2.57 & 4.57 \Bstrut \\ \hline \Tstrut \multirow{2}{*}{\gls{ud}} & regular & 0.80 & 0.84 & 1.26 & 1.74 & \NO & \NO \Bstrut \\ \Tstrut & \gls{rdma} \gls{cm} & \redcell{0.86} & 0.90 & 1.31 & 1.71 & \NO & \NO \Bstrut \\ \hlineB{3} \end{tabular} \end{table}