IIS 5 & IIS 6
PerfMonitoring - Tons of "Memory\pages /sec" with 6g avail memory
Last post Jan 28, 2009 12:37 PM by Billyhole
Jan 28, 2009 12:37 PM|Billyhole|LINK
I'm having constant problem of while monitoring my server performance using PerfMon, my "Memory\pages per second" is way way high and I have plenty of memory available. I'm looking at
averages of 3,000 to 4,000 Memory\pages/sec and available memory of just under 6 gig, and the current userload during being maybe in the 80-140 range.
I've gone through tons of TechNet articles and Patterns & Practices guides investigating this issue and everything I read says that "pages/sec greater than 80 is unhealthy and probably indicates not enough RAM". But like I said, I have just under 6Gig of available
memory. I'm just not sure where else to look for what might be causing this.
I am sure that the root cause isn't some other process on the server, because at periods during the night, when my users completely drop off, so does the pages / sec counter. We're experiencing a dramatic slowdown of our user's downloads and I'm trying to
eliminate this issue as the cause, as well as figure out why it's happening. I have plenty of performance monitor logs as well as IIS usage logs to dig into, can someone just point me in a direction of where I should look. I would greatly appreciate any
help that anyone can provide. Thanks in advance.
Some server and application background:
IIS 6 running on Windows Server 2003 Enterprise Edition
Dell PowerEdge 6850 with 4 DualCore 3.0gig processors with 8 gig of memory and a gigabit NIC.
The web application we're running is an "electronic distribution" site, written in ASP.Net 3.5. It's essentually, a download site. The file sizes of our assets range from 1K to over 4gig. When a user requests a file for download, I get the file path to the
asset which is housed on a SAN connected to the web server and using .Net, I perform a Response.TransmitFile().