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From "Feldhacker, Chris" <>
Subject RE: [users@httpd] Slow performance of Apache on Windows
Date Wed, 09 Mar 2011 22:19:48 GMT
-----Original Message-----
From: Jeff Trawick [] 
Sent: Wednesday, March 09, 2011 4:05 PM
Subject: Re: [users@httpd] Slow performance of Apache on Windows

On Wed, Mar 9, 2011 at 4:15 PM, Feldhacker, Chris <> wrote:
>> Summary:
>> Apache HTTP Server 2.2.17 running on Windows Server 2003 & 2008 has slight HTTP
transfer performance problems with Windows XP clients, and *extreme* performance problems
with Windows 7 clients.
>> Apache HTTP Server running on RedHat Linux 5 performs fine with both XP and W7 clients.
>> IIS and Small HTTP Server on Windows 2003/2008 perform fine with both XP and W7 clients.

> Did you ever get a network trace with IIS as the server to see how it differs from the
trace with Apache?

Yes, the delayed acknowledgements by the client for the packet with the push flag were no
longer present -- acks were being sent very quickly.  (The time deltas for pretty much all
network traffic was basically next to zero.)  Other than the shortened delays, there were
no other obvious differences between the traces.

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