Changes between Version 8 and Version 9 of Performance

Timestamp:

2007-09-26T22:07:00Z (17 years ago)

Author:

warner

Comment:

add delay_rtt graph

Performance

@@ -15 +15 @@
 == Network Speed ==
 
-=== test results ===
+=== Test Results ===
 
 Using a 3-server testnet in colo and an uploading node at home (on a DSL line
@@ -34 +34 @@
 [/tahoe-figleaf-graph/hanford.allmydata.com-tahoe_speedstats_delay.html delay graph] and
 [/tahoe-figleaf-graph/hanford.allmydata.com-tahoe_speedstats_rate.html rate graph] show these Ax+B numbers for a node in colo and a node behind a DSL line.
+
+The 
+[/tahoe-figleaf-graph/hanford.allmydata.com-tahoe_speedstats_delay_rtt.html delay*RTT graph] shows this per-file delay as a multiple of the average round-trip
+time between the client node and the testnet. Much of the work done to upload
+a file involves waiting for message to make a round-trip, so expressing the
+per-file delay in units of RTT helps to compare the observed performance
+against the predicted value.
 
 === Roundtrips ===