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Vista - Non-Paged Kernel Memory

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Old 12-01-2008   #1 (permalink)


Windows Vista x64 Ultimate
 
 

Non-Paged Kernel Memory

In Windows XP, there was a registry setting that when set prevented the Kernel from being paged out to the swapfile. I don't remember what this specific key was, but does anybody know of a similar setting for Vista x64?

I was just curious...

My System SpecsSystem Spec
Old 12-01-2008   #2 (permalink)


Vista Home Premium 32-bit & Vista Ultimate 64-bit both Service Pack 2 W7 Pro RTM 7600 32 & 64
 
 

Re: Non-Paged Kernel Memory

Hi Peter,

The key is still there in the registry. The default value is 0, but you will need to set it to 1.
Code:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management]
"DisablePagingExecutive"=dword:00000001
My System SpecsSystem Spec
Old 12-01-2008   #3 (permalink)


Windows Vista x64 Ultimate
 
 

Re: Non-Paged Kernel Memory

Quote  Quote: Originally Posted by Dwarf View Post
Hi Peter,

The key is still there in the registry. The default value is 0, but you will need to set it to 1.
Code:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management]
"DisablePagingExecutive"=dword:00000001
Thanks, Dwarf. I want to do some benchmarking both with and without the kernel locked into memory, so I can gauge the impact on performance, if any.
My System SpecsSystem Spec
Old 12-01-2008   #4 (permalink)


Vista Home Premium 64bit SP2
 
 

Re: Non-Paged Kernel Memory

nice one....can you post your results back here??
My System SpecsSystem Spec
Old 12-02-2008   #5 (permalink)


Windows Vista x64 Ultimate
 
 

Re: Non-Paged Kernel Memory

I downloaded and installed Geekbench 2.0.19, and here are the results that I got:

Before Locking the Vista Kernel : 3550
After Locking the Vista Kernel : 3607

Not a huge increase in overall score, but the system does feel more responsive. Maybe the results differences would be more profound if I increased memory from 4GB to 8GB. And desktop availability from login would also appear to happen a little more quickly than usual.

I've attached the Geekbench results files. I don't have a Geekbench serial number, so I cannot perform the 64-Bit benchmarks.
Attached Files
File Type: txt GB Before.txt (8.4 KB, 32 views)
File Type: txt GB After.txt (8.4 KB, 23 views)
My System SpecsSystem Spec
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