Windows 2008 r2 awe

Thursday, February 25, PM. Is there anything out there that explains what R2 is doing, and what I'm looking at here? Monday, March 1, PM. Big , difference. To be precise task manager doesnt gives you the actual memory in usage. So you should use performance counter to calculate the bytes so that you will get what is the total amount of bytes residing in memory.

So you need to get the working set of the system cache with which you can decide if there is a performance bottleneck. Yes the memory manage is very much different from windows to windows R2.

PFN lock mechanism has been re-designed. When you said enterprise server using more memory, can you be specific at the module? Microsoft uses SMB protocol , earlier versions of operating systems used smb 1. So you have to further dwell down and check what is the behavior , SMB is one of the complex protocol to understand as its implementation falls into many drivers and protocols.

Following are some of the things which i would like you to follow to get more understanding of the behavior. Tuesday, March 2, AM. Hi Sainath, Thanks for the reply. I'm a little confused at your statement that "To be precise task manager doesnt gives you the actual memory in usage". I thought that was exactly what it did. Just that in and R2, it displayed physical memory in use, not virtual memory.

Also note that the MSDN article does state quite clearly that the performance counters I'm looking at to ascertain cached memory should correspond directly with the "Physical Memory MB : Cached" displayed by Task Manager. I think if I explain exactly what I'm doing with this server it might help. I'm migrating a large physical file server to a virtual server. Our virtual environment is VMware 3. I have verified with Symantec we have the latest agent for R2.

The SecureCopy software is located on the local machine, and also on another R2 server using it as a data mover. Apart from copies and sync's, nothing else touches this machine.

Some physical memory is released approx. However, none of the processes are using much memory. This is the mystery, what is using all the physical memory? I think I can see this in the perfmon counters, but it doesn't match up with the task managers "Physical Memory MB : Cached", which according to MS, its supposed to.

This would be nice to see. I can access shares locally and across the network with no problem. I will monitor the memory activity of the processes at the next copy, but as mentioned above, they seem to be acting normally. It will have many files copied to it daily, and I'm just trying to get a handle on how this memory issue will impact it. It just may be that what I'm seeing is by design, I just can't find anything that says so, and the monitors available to me seem to give conflicting info.

Thanks for your help. Tuesday, March 2, PM. I also noticed that if you add the " Cached " value to the " In use " value you get the "Total Physical Memory MB " value Could this be what is happening; When the copy starts, the memory manager starts assigning memory to the normal priority standby cache page lists this is the Standby Cache Normal Priority counter.

This then shows up as the " Cached " value in Task Manager As files are copied over and are "read" by the OS, the memory manger moves more physical pages to the cache manager which then uses memory from the Standby Cache, thus putting it "In use" as far as Task Manager is concerned.

What do you think? Tuesday, March 9, AM. On win7, the Cached counter in task manager includes only modified and standby pages, and does not include the size of the system cache working set. It can be normal for the system cache to consume most of the system memory, even if the system is idle. Ask Question. Asked 12 years, 4 months ago. Active 4 years, 11 months ago. Viewed 9k times. Improve this question. Community Bot 1. Krome Pure. Krome 6, 17 17 gold badges 71 71 silver badges 86 86 bronze badges.

I thought this question looked familiar How much physical memory is in the server and what's the size of your database s? Server has 4Gig exactly, fwiw. Add a comment. It started as poor system performance. Through RamMap thank you, Mark Russinovich!

It's off. I shut down the service. The AWE memory disappeared and system performance was fine. The trick is that there doesn't seem to be a pattern to the query that I've found yet.

One major factor in this is that I enabled CDC for that user database and for about tables within it , and have been doing considerable testing in the past few weeks related to that so I've been putting a little stress on CDC. Choose the download you want.

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