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authorRoger Dingledine <arma@torproject.org>2004-02-02 06:37:34 +0000
committerRoger Dingledine <arma@torproject.org>2004-02-02 06:37:34 +0000
commit8e87357a89971e04f3aaa074df3b396247199185 (patch)
treeec99ea7ea7ec834f354e00d58a00bb4342780250
parent8f00a304db757ac7c320d00789a9a80b159b9309 (diff)
downloadtor-8e87357a89971e04f3aaa074df3b396247199185.tar.gz
tor-8e87357a89971e04f3aaa074df3b396247199185.zip
chicken out and revert to previous test results.
this is the final version. svn:r1056
-rw-r--r--doc/tor-design.tex14
1 files changed, 9 insertions, 5 deletions
diff --git a/doc/tor-design.tex b/doc/tor-design.tex
index 673fdf3561..5a7cc2520d 100644
--- a/doc/tor-design.tex
+++ b/doc/tor-design.tex
@@ -1574,15 +1574,19 @@ nodes on the same machine (a heavily loaded 1GHz Athlon). We downloaded a 60
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.