Author: martinpa
Subject: RAMMap shows excessive page table usage
Posted: 06 January 2014 at 4:47pm
Hi,
I'm looking at a WS 2008 R2 virtual citrix server (VMware, 10 GB RAM, 4 vCPUs) that's been running for about 30 days. Right now, there's hardly any activity, just myself logged on, but ressource monitor shows around 7GB of RAM in use.
I started RAMMap to analyze this, and I find a "normal" situation with respect to process memory, mapped files etc., but I also find 4.5 GB allocated to page tables!
I've been spending a couple of days on the memory management and file caching chapters of Windows Internals (6th ed.), but I can't figure out yet why windows should want to spend that much memory on page tables... can anyone point me in the right direction?
This is a customer machine, and although I have local admin privileges, there's limits to what I can do (e.g. no spontaneous reboots, no kernel debugging).
Thanks very much,
Martin
Subject: RAMMap shows excessive page table usage
Posted: 06 January 2014 at 4:47pm
Hi,
I'm looking at a WS 2008 R2 virtual citrix server (VMware, 10 GB RAM, 4 vCPUs) that's been running for about 30 days. Right now, there's hardly any activity, just myself logged on, but ressource monitor shows around 7GB of RAM in use.
I started RAMMap to analyze this, and I find a "normal" situation with respect to process memory, mapped files etc., but I also find 4.5 GB allocated to page tables!
I've been spending a couple of days on the memory management and file caching chapters of Windows Internals (6th ed.), but I can't figure out yet why windows should want to spend that much memory on page tables... can anyone point me in the right direction?
This is a customer machine, and although I have local admin privileges, there's limits to what I can do (e.g. no spontaneous reboots, no kernel debugging).
Thanks very much,
Martin