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Message-ID: <46B09369.9060504@gmail.com>
Date: Wed, 01 Aug 2007 16:06:33 +0200
From: Mladen Turk <mladen.turk@gmail.com>
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To: Tomcat Users List <users@tomcat.apache.org>
Subject: Re: Tomcat with/without Tomcat native library
References: <46B08D61.7090305@sun.com>
In-Reply-To: <46B08D61.7090305@sun.com>
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Petr Sumbera wrote:
> Hi Bill and all,
> 
> not sure what is the right way for comparison between using and not 
> using APR. I tried Apache ab tool like this:
> 
> ab -c 4 -n 10000 http://localhost:8080/favicon.ico
> 
> And I don't see any difference. Actually it might be little bit slower 
> with APR. The file size is 21630, so it should use sendfile then (well 
> actually our APR doesn't use sendfile at the moment as far as I know).
>

The purpose of APR is to change the model from thread-per-connection
to thread-per-request. This means it will behave much faster when
you have 1000 concurrent clients using Keep-Alive (HTTP 1.1).

In that case you'll be able to serve them all with lower number
of maxThreads.

So, try to use the 'normal' test tool instead a brute force one like 'ab'
that will reflect the real load to your boxes.
I mean, the ab (Apache Bench) is a DoS tool, right ;)

Regards,
Mladen.

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