Nprobe: Network protocol analysis
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The Effect of Early Packet Loss on Web Page Download Times
James Hall, Ian Pratt, Ian Leslie and Andrew Moore
Proceedings of the Fourth Passive and Active Measurement Workshop (PAM 2003), April 2003
Identification of the various elements contributing to the download time
of Web objects has been the subject of much research. It is, however, the
download time of a set of objects comprising an entire page which is of
critical importance to the user --- particularly in the presence of delay
leading to subjectively long waits. Because browsers typically use
parallel TCP connections to download the set of objects neither the
overall page download time, or the contribution of delay, are simply the
sum of the individual object download times or delays. We present a
technique for identifying and examining the complete set of connections
involved in a page download which then enables us to fully analyse the
contributory time components and to assess the potentially serious delays
which arise from loss early in the connections' lifetimes.
[PDF 322.34 KB]
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