Registry: Memory Management

This is a discussion about Registry: Memory Management in the Customization Tweaking category; Looking at the following key in the Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet001\Control\Session Manager\Memory Management I am baffled at why the SecondLevelDataCache parameter is defaulted at 512(K).

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Looking at the following key in the Registry:
 
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet001\Control\Session Manager\Memory Management
 
I am baffled at why the SecondLevelDataCache parameter is defaulted at 512(K). How many processors today have a cache this large? Anyway, I am temporarily running a Celeron 850, would I change this to 128?
 
Also, how does the LargeSystemCache setting differ from the aforementioned one? Should I set this to 128 too?
 
While there are quite a few interesting parameters in this particular key, is anyone familiar with the four "Pool" related (PagedPool & NonPagedPool) settings?
 
Have a great weekend

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Oct 20
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taken straight from the jsiinc site:
 

Quote:NOTE: This is only useful for computers with direct-mapped L2 caches. Pentium II and latter processes do not have direct-mapped L2 caches 
so i guess it doesn't actually matter (celeron 850 is a celeron II yeah?)

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On-die cache, cannot be configured using that Registry key, only older L2 piplined fofboard cache can be altered.