w3wp.exe is utilising high CPU usage

w3wp.exe process utilizing high CPU usage.

I am facing one issue at my site that was w3wp.exe process was utilizing almost 90% CPU usage on one of my Application server. It was Web server and one of the Web Application was running on it.

IIS was configured on this server and Windows Server 2008 R2 was installed.

So lets begin with steps which i perform to resolve this issue:

1. Login to server and open IIS Manager  through Start - Programmes - Administrative tools.

2. Expand your server name by double clicking on it on left side of window.

3. Their you will find Application Pool.

4. Click on Application Pool and on right side you will see all Application Pools created.

5. Their you will able to see Default Application pool.

6. Right Click on it and click Stop  and Start means you need to restart service.

You need to confirm that your website is in which Application Pool before doing this as you need to restart that Application Pool.

Exchange Server Roles Function

Functions of Different Microsoft Exchange Server Roles:

Mail Box Server Role: Mail Box Server role holds User's Mailboxes and Public Folder Database.


Hub Transport Server Role: Hub Transport Role is require for Sending and Receiving mails from within organization or out side organization. We requires this role even when we are sending mail within organization from a User who is in one mail box server role to a user who is in another mail box server role.


Edge Transport Server Role: All Security filters and External mail facility are available in this particular role. All mails going outside organization or mails coming from outside organization passes this particular server holding this role. It cannot be part of a Domain. It should be Standalone Server.



Client Access Server Role :  This server role is used when a client or user is trying to access the mails using WEB or exchange active sync or Outlook anywhere. 



Unified Messaging Server Role:  This server role is used for Voice Mail Box, Video Calling.