Topic: Apache CPU Usage

[VoodooMill]

Hello,

My problem is excessive CPU utilization by httpd.exe

Some information:
Recently I put into production a compiled version of 2.2.3 using mod_deflate, mod_ssl, mod_ldap, mod_authnzldap. I compiled using VC++ 6 and used assembly optimizations for the components OpenSSL and zlib.

Previously I was running 2.0.59 and mod_deflate and it always handled the load (~15,000 visits/1,000,000 hits per day), with 2-3% CPU utilization. Terrific!

In fact, even now when I start 2.2.3 it will run at around 2% CPU for hours, then suddenly jump to 25% CPU and stay there until I restart the Apache service. Now I'm noticing httpd.exe is up to 50% CPU and it's the time of day where traffic is greatly reduced.

Has anyone seen this happen before or have any suggestions as to what might be causing this?

[James Blond]

You try

Win32DisableAcceptEx
EnableSendfile Off
EnableMMAP off

[VoodooMill]

Thanks for the suggestion James. I read up on those settings and added them to the configuration. I will post results after the server has had some time to run...time will tell.

Thanks again!

[VoodooMill]

Well, it's been a few days and the httpd.exe process has been behaving with it's CPU usage.

Thanks for the help!