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Date: Wed, 5 Sep 2001 21:37:04 -0700
From: Greg Stein <gstein@lyra.org>
To: dev@httpd.apache.org
Subject: Re: Add mod_gz to httpd-2.0 ( Thread restart )
Message-ID: <20010905213704.E14040@lyra.org>
References: <171.64cdf6.28c814d6@aol.com> <3B96E7F7.100@cnet.com>
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In-Reply-To: <3B96F87C.4080206@cnet.com>;
 from ianh@cnet.com on Wed, Sep 05, 2001 at 09:15:56PM -0700

On Wed, Sep 05, 2001 at 09:15:56PM -0700, Ian Holsman wrote:
> Greg Stein wrote:
> >>On Wed, Sep 05, 2001 at 08:05:27PM -0700, Ian Holsman wrote:
> >>>Some performance results with mod_gz are available at
> >>>http://webperf.org/a2/v25/
> >>>(no core dumps.. pages look ok on a real browser while running test)
> >>>I'm going to be re-running the tests for a longer period to see if
> >>>there are memory leaks (as well as quantify/purify on it next week)
> >>>
> >>>brief summary:
> >>>	* numbers are based on pages going through mod-include
> >>>	* once of the runs looks a bit flaky.. and I'm re-running it
> >>>	* cpu usage (USR) is VERY high (from 100 without gz to 500)
> >>>	* page requests down 16% when using GZ
> > 
> > What does this mean? Total bytes transferred? If so, then why only 16%
> > 
> > The number of page requests should be constant, unless mod_gz introduces
> > some kind of caching.
> 
> the number of concurrent requests are constant in all of these tests.
> we have 50 processes (spread across 10 machines) doing GET's of a page.
> when a page is retrived is GET's it again (and again..)
> so if the page response is slower, then the pages/second will also be.
> 
> we have a more sophisticated comercial machine which can generate better
> traffic, but it is core dumping at the moment so I can run't the tests through it.

Ah! By "page requests down..." you mean page requests *per second* ??

You omitted that "per second", so the statistic made no sense...

Cheers,
-g

-- 
Greg Stein, http://www.lyra.org/