[or-cvs] chicken out and revert to previous test results.
Roger Dingledine
arma at seul.org
Mon Feb 2 06:37:36 UTC 2004
Update of /home/or/cvsroot/doc
In directory moria.mit.edu:/home2/arma/work/onion/cvs/doc
Modified Files:
tor-design.tex
Log Message:
chicken out and revert to previous test results.
this is the final version.
Index: tor-design.tex
===================================================================
RCS file: /home/or/cvsroot/doc/tor-design.tex,v
retrieving revision 1.153
retrieving revision 1.154
diff -u -d -r1.153 -r1.154
--- tor-design.tex 2 Feb 2004 06:21:15 -0000 1.153
+++ tor-design.tex 2 Feb 2004 06:37:34 -0000 1.154
@@ -1574,15 +1574,19 @@
megabyte file from {\tt debian.org} every 30 minutes for 54 hours (108 sample
points). It arrived in about 300 seconds on average, compared to 210s for a
direct download. We ran a similar test on the production Tor network,
-fetching the front page of {\tt cnn.com} (55 kilobytes) every 10 minutes for
-21.3 hours (128 sample points): while a direct
+fetching the front page of {\tt cnn.com} (55 kilobytes): %every 10 minutes for
+%26 hours (156 sample points):
+while a direct
download consistently took about 0.3s, the performance through Tor was highly
-variable. Some downloads were as fast as 0.3s, with a median at 2.6s, and
-90\% finishing within 6.0s. It seems that as the network expands, the chance
+variable. Some downloads were as fast as 0.6s, with a median at 2.7s, and
+80\% finishing within 5.7s. It seems that as the network expands, the chance
of building a slow circuit (one that includes a slow or heavily loaded node
or link) is increasing. On the other hand, as our users remain satisfied
with this increased latency, we can address our performance incrementally as we
-proceed with development.
+proceed with development.\footnote{For example, we have just begun pushing
+a pipelining patch to the production network that seems to decrease
+latency for medium-to-large files; we will present revised benchmarks
+as they become available.}
%With the current network's topology and load, users can typically get 1-2
%megabits sustained transfer rate, which is good enough for now.
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