ASP.NET, w3wp.exe, 100% CPU Usage and McAfee VirusScan Enterprise

re: ASP.NET, w3wp.exe, 100% CPU Usage and McAfee VirusScan Enterprise

TIm — Mon, 20 Apr 2009 18:26:58 GMT

Nachiketa Anshu Thanks Changing the Worker Proccess it fixed everything THANKS!!!!!!!!

ASP, w3wp.exe, Disappearing Memory and McAfee VirusScan Enterprise (Again!)

Kevin Gearing's Blog — Tue, 10 Feb 2009 12:23:11 GMT

Following on from my post back in 2005 ( ASP.NET, w3wp.exe, 100% CPU Usage and McAfee VirusScan Enterprise

Windows IIS w3wp.exe high CPU - Kayako - Community Forums

Windows IIS w3wp.exe high CPU - Kayako - Community Forums — Mon, 26 Jan 2009 22:07:10 GMT

Pingback from Windows IIS w3wp.exe high CPU - Kayako - Community Forums

re: ASP.NET, w3wp.exe, 100% CPU Usage and McAfee VirusScan Enterprise

Cliff — Wed, 20 Aug 2008 15:41:57 GMT

mysupport.mcafee.com/.../templatepage.aspx

Click Start, Programs, McAfee, VirusScan Console.

Double-click Access Protection, deselect Enable Access Protection, then click OK.

Click Start, Run, type regedit and click OK.

Navigate to the following registry key:

[HKEY_LOCAL_MACHINE\Software\McAfee\VSCore\On Access Scanner\McShield\Configuration]

In the right pane, right-click an empty space and select New, DWORD Value.

Name the new value ScanMemoryOfNewProcesses and press ENTER.

Double-click ScanMemoryOfNewProcesses and set the Value data to 0 (zero).

Click OK and exit the registry editor.

Click Start, Programs, McAfee, VirusScan Console.

Double-click Access Protection, select Enable Access Protection., then click OK.

Restart the system.

re: ASP.NET, w3wp.exe, 100% CPU Usage and McAfee VirusScan Enterprise

Rouhollah Bahmani — Sat, 14 Jun 2008 10:44:11 GMT

I had cpu usage 100% with DouranPortal project which have been sold to more than 2000 companies(like http://www.kish.ir).

DouranPortal Project(dotNet 1.1) doesn't have any problem with McAfee 8.5i but dotnet 2.0 version

makes cpu usage to 100% i mean w3wp.exe process goes to 100%.I downloaded and Installed KenticoCMS, McAfee doesn't have any problem with that

i mean it works normaly. I noticed the location of projects, both DouranPortal and KenticoCMS,

DouranPortal is in d drive but KenticoCMS is in WWWROOT folder, So I transfer DouranPortal to

WWWROOT and it works properly, and I didn't change the setting of McAfee!! Unbeliveble!!

I check process with Filemon.exe and I found that McAfee makes w3wp.exe to load the all permutaion of paths an files

to that is not really exixts.for example the file setupapi.dll is in C:\WINDOWS\system32 folder

and my bin project folder is in D:\DouranPortal_v20\bin. McAfee makes w3wp.exe to load

file like D:\DouranPortal_v20\bin\setupapi.dll which is not exists and it takes lots of time to find.

and this happens for Symantec endPoint antivirus too.

I didn't give it up the problem, I try to copy the setting of wwwroot folder to D:\DouranPortal_v20 folder

but it didn't work, maybe it has some setting in windows registery, so do you know what is the diffrence?

So the only solution is to move project to wwwroot folder!!

and customer was content.

bahmani00@yahoo.com

re: ASP.NET, w3wp.exe, 100% CPU Usage and McAfee VirusScan Enterprise

Bahmani — Sat, 14 Jun 2008 10:39:10 GMT

The best solution to solve this problem is to move yr project folder to wwwroot folder

re: ASP.NET, w3wp.exe, 100% CPU Usage and McAfee VirusScan Enterprise

Holger — Mon, 19 May 2008 14:38:17 GMT

Hi there,

turning off McAfee BOP did the trick!!!

I was facing extremely poor performance on an ASP.NET web application. Using trace logs, task manager and windows performance manger I figured out that even though I had a low activity on CPU and moderate RAM usage that .NET Framework was struggling hard on PerfMon. The traces revealed that I lost 10 seconds just by calling a method within my form's code. After I turned off the BufferOverflowProtection in McAfee 8.0 my web application was working perfectly.

Thanks again!

re: ASP.NET, w3wp.exe, 100% CPU Usage and McAfee VirusScan Enterprise

Asheesh Barua — Thu, 27 Sep 2007 14:54:06 GMT

You can keep the session variable out of .net worker process,

State server ;- keep the session dat over the out of worker process you can specify the location where you want to keep the session information, Just make a small change in to web config , change the session state to state server.

In this mode your session variable should be seralize

SQl server : you can keep the session varaible over the SQl server data base. for this ypu needto run the Micro soft provided script for sql server mode

and make the session mode to sql server in web config

Thanks

re: ASP.NET, w3wp.exe, 100% CPU Usage and McAfee VirusScan Enterprise

Atti the caprio — Tue, 28 Aug 2007 06:46:38 GMT

nice information....

buit can anybody please write more details about state servers and sql mechanism for common place for worker ....?

any comment?

....thanks in advance

re: ASP.NET, w3wp.exe, 100% CPU Usage and McAfee VirusScan Enterprise

ritesh kharadi — Wed, 01 Aug 2007 13:15:11 GMT

thank you

re: ASP.NET, w3wp.exe, 100% CPU Usage and McAfee VirusScan Enterprise

Dustin Stejskal — Wed, 18 Jul 2007 17:04:01 GMT

Nachie -

I am guessing that your Session State Mode is set to "InProc". The problem is that each instances of the worker process that is brought up has its own in process state storage. Meaning if you are storing something in Session and you then get redirected to another page and on to another worker thread you will not have access to that session information. Using an out of process state storage mechanism (SQL or State Server) will allow you to store session state in a common place that all worker processes will have access to.. Please also remember that anything stored in an out of process manor will have to be marked as Serializable .

Dustin

re: ASP.NET, w3wp.exe, 100% CPU Usage and McAfee VirusScan Enterprise

Nachiketa Anshu — Thu, 28 Jun 2007 05:10:00 GMT

Hi,

I was facing the same problem of w3wp processes taking 100% CPU utilization. I made the number of worker process from 1 to 4. It made the application noticeably fast but some times we observe that the session is not consistent. It keeps loosing some data and suddenly regains the session. Its weired. Can anyone advice on what needs to be done to fix this. Once i change it to 1 again from 4 worker processes, it works fine.

TIA,
Nachie

re: ASP.NET, w3wp.exe, 100% CPU Usage and McAfee VirusScan Enterprise

seeker22 — Wed, 25 Apr 2007 17:25:00 GMT

Wanting to configure McAfee virusscan to exclude w3wp.exe from buffer overflow protection. Anyone know the API to use for it?

re: ASP.NET, w3wp.exe, 100% CPU Usage and McAfee VirusScan Enterprise

Eric — Tue, 17 Apr 2007 08:39:00 GMT

The problem I am having is deploying micrsoft patches using WSUS. It keeps on hanging or timing out and when I check the task manager, I found out that the w3wp.exe is using more memory than it's suppose to. Can anyone tell me what might be the cause? I do have McAfee installed on the server also.

re: ASP.NET, w3wp.exe, 100% CPU Usage and McAfee VirusScan Enterprise

randelosreyes — Sat, 24 Feb 2007 03:42:00 GMT

That w3wp.exe also has been creating havoc on our servers us so we wrote a simple application to control it.

Details and download here:

http://www.linkhelpers.net/w3wp_fix.asp