Solved

Relationship between pages/sec, page faults/sec, and available MB

Posted on 2011-03-16
1
940 Views
Last Modified: 2012-08-14
On a Windows 2008 SP2 server, can someone explain the relationship between these three counters and what their thresholds should be?

Are there any other similar counters in perfmon we should take into account when troubleshooting a slow server?
0
Comment
Question by:bruce_77
1 Comment
 
LVL 21

Accepted Solution

by:
dan_blagut earned 500 total points
ID: 35157799

"What is pages/sec performance counter ?"

The pages/sec performance counter is a memory related counter that measures the hard page faults. A hard page fault occurs when a memory page is not in the immediate memory and needs to be fetched from the disk. It is a very important counter that can potentially help us find bottlenecks. From my experience, a good warning threshold value for the pages/sec counter would be 10 and critical threshold value would be 20.

"What is page faults/sec performance counter ?"

The page faults/sec performance counter is also a memory related counter that measures the hard page faults and the soft page faults. A soft page faults occurs when the page is located in the immediate memory but still needs to fetch it for the current process. For example, Word has opened the spellchecker, and now Outlook wishes to use it, there is no need for another call to the disk as the spellchecker is already in memory. Zero is the optimum measurement and any mesurement higher then that delays the response time, however usually the value of the page faults/sec is at least twice the size of pages/sec.

Available MB

When the RAM is full, the server will use the swap file. The access time for RAM is at least 100 time smaller than HDD. So when a PC or server use more memory than RAM capacity it will be slow down...

Dan

0

Featured Post

Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Monitor input from a computer is usually nothing special.  In this instance it prevented anyone from using the computer.  This was a preconfiguration that didn't work.
Possible fixes for Windows 7 and Windows Server 2008 updating problem. Solutions mentioned are from Microsoft themselves. I started a case with them from our Microsoft Silver Partner option to open a case and get direct support from Microsoft. If s…
This tutorial will walk an individual through the steps necessary to enable the VMware\Hyper-V licensed feature of Backup Exec 2012. In addition, how to add a VMware server and configure a backup job. The first step is to acquire the necessary licen…
This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…

807 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question