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From Dirk-Willem van Gulik <>
Subject Re: Apache Bench and Wild Fluctuations
Date Thu, 09 Aug 2001 20:04:25 GMT

Are you by any chance running AB on the same machine as the web server.
I've seen this sort of behaviour when things fight with resources.

Also note the historgram/confidence interval it now prints. I Suspect that
for these values it warned you that the SD was far too big. 1000/100 is
not a large number; that is just a couple of seconds...


On Wed, 8 Aug 2001, Jerry Baker wrote:

> Sometimes 2.0.24-dev is faster, and sometimes it is a lot slower using
> localhost to bench it. Here are the results for 5 test conducted with ab
> -n 1000 -c 100 http://localhost/:
> Requests per second: 356.63
> Requests per second: 206.78
> Requests per second: 350.39
> Requests per second:  53.57
> Requests per second:  74.69
> Is AB not a good benchmark tool, or is the problem with Apache?

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