I'm seeing a lot of page faults (600 /s) in performance monitor. I'm trying to discover what is causing the page faults. I've changed the memory so i know its not a hardware issue. I've done some monitoring of the processes running on the server, however the total amound of page faults generated by running processes does not amount to the total number of page faults on the server. What else could be causing the page faults? Any help much appreciated, Regards Andrew

You need to understand that page faults are NORMAL. There are two kinds; hard and soft. Soft is reload from RAM and hard is reload from hard drive [virtual memory or program reload]. Last I remember about perfmon it only gave page faults per second but did not differenciate between hard and soft page faults. Correct me if I am wrong. Give a person a fish, they eat for a day. Suggest they internet search and they learn a skill for a lifetime.

Here is a break down on the counters Memory/page faults/sec is both hard and soft. Don't use this counter Memory/Pages Reads/sec and Memory/Pages Input/sec deal with hard faults so use these to monitor. Poorly written applications [includes ms apps] are the biggest contributor to page faults. End task on apps to see which is causing your page faults. Give a person a fish, they eat for a day. Suggest they internet search and they learn a skill for a lifetime.