[or-cvs] r15287: Removed paragraph with comparison of cell transfer times ove (projects/hidserv/trunk/doc)

[kloesing at seul.org]

Author: kloesing
Date: 2008-06-15 18:27:37 -0400 (Sun, 15 Jun 2008)
New Revision: 15287

Modified:
   projects/hidserv/trunk/doc/report.pdf
   projects/hidserv/trunk/doc/report.tex
Log:
Removed paragraph with comparison of cell transfer times over the same circuit.

Modified: projects/hidserv/trunk/doc/report.pdf
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(Binary files differ)

Modified: projects/hidserv/trunk/doc/report.tex
===================================================================
--- projects/hidserv/trunk/doc/report.tex	2008-06-15 21:42:29 UTC (rev 15286)
+++ projects/hidserv/trunk/doc/report.tex	2008-06-15 22:27:37 UTC (rev 15287)
@@ -815,33 +815,6 @@
 \label{fig:introcirc}
 \end{figure}
 
-\paragraph{Cell Transfer Over the Same Circuit}
-
-Figure~\ref{fig:estrend_rendack} compares the transfer times of the 
-ESTABLISH\_RENDEZVOUS and RENDEZVOUS\_ACK cells sent over the same rendezvous
-circuit. Although for very low values below 0.1 seconds the latter is
-faster than the former, there seems to be a linear relationship between the 
-values, indicating that there exist faster and slower circuits. Using advanced
-path selection algorithms can help finding circuits consisting of faster relays
-and therefore speed up cell transfers.
-
-Also interesting is the formation around the acknowledgments with one second, 
-which also occur for ESTABLISH\_RENDEZVOUS cells, that are twice as fast.
-
-\emph{TODO Christian: What might that mean? That's weird. -RD}
-
-\begin{figure}
-\centering
-\includegraphics[width=0.8\textwidth]{estrend_rendack.png}
-\begin{tabular}{lrrrrrr}
-& Min. & 1st Qu. & Median & Mean & 3rd Qu. & Max.\\\hline
-Est. rend. & 0.009 & 0.109 & 0.267 & 0.926 & 0.773 & 56.100\\
-Rend. ack. & 0.004 & 0.071 & 0.203 & 0.736 & 0.898 & 32.770
-\end{tabular}
-\caption{ESTABLISH\_RENDEZVOUS and RENDEZVOUS\_ACK transfer times}
-\label{fig:estrend_rendack}
-\end{figure}
-
 \subsection{Message Transfer}
 
 Figure~\ref{fig:reqres} contains a plot of mean request times versus mean
@@ -1001,6 +974,14 @@
 service's introduction points. Further, it needs to be evaluated whether
 the extension of two circuits at the same time has a negative effect on
 clients with low bandwidth.
+%
+\item[Replacement for 1-Second Circuit Creation Loop] The current
+implementation of a client accessing a hidden service makes use of a
+1-second loop that checks whether circuits have been successfully
+established. This results in an unnecessary delay of up to one second or
+0.5 seconds in average when the client could already proceed in connection
+establishment. This can be avoided by processing the establishment of a
+circuit immediately.
 \end{description}
 
 There are areas which are candidates for performance improvements, but