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From Luca Toscano <>
Subject Re: [users@httpd] AsyncRequestWorkerFactor
Date Fri, 05 Feb 2016 07:26:47 GMT
Hi John!

I asked a similar question in the dev mailing list some days ago, so if you
want to take a look here's the link:

Stefan and Rainer helped a lot in clarifying some doubts (thanks again!).
The goal would be to eventually add more examples and references in the
official documentation, so any input from you would be really valuable.
Feel free to suggest what you would like to see in the docs :)

My view of the AsyncRequestWorkerFactor is how much overcommit you are
willing to accept for your workers to maximise throughput without risking
too much (too many connections in the listen queue, timeouts, keep alives
dropped, etc..). Raising the Async factor to an higher value might bring
throughput increase but there is always the risk of overcommitting too
much; the final value highly depends on your traffic pattern, so careful
testing is the only good way to improve performances. Rainer explained this
concept in a much better and complete way, I would suggest to check it

Let me know!


2016-02-04 22:59 GMT+01:00 Rose, John B <>:

> What is an example circumstance where setting "AsyncRequestWorkerFactor" to
> a value other the the default value of 2, would be preferred?
> Thanks

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