On Thu, 1 Feb 2001, Yu-Shun Wang wrote:
> Another (sort of) related question: I've got the bandwidth
> measurements for different algorthms using netperf. I was
> really surprised that IPComp did so bad. Any ideas?
AFAIK, netperf TCP_STREAM test (and may be others) is extremely
susceptible to network delays. For example, for a fast Ethernet
connection with, say, 30msec packet delay, netperf may show less than
10Mbits/sec bandwidth instead of the usual 90+Mbits/sec. Clearly,
bandwidth and response times are orthogonal measurements, but netperf
design ties them together.
Depending on your test environment and purposes, netperf throughput
results may be very misleading.
$0.02,
Alex.
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