Did Anyone ever use this L2 cache Reg hack that had been pos

Someone had posted this saying that Win2k only used 256k of your L2 cache by default. Anyone tried this? I have a 1meg L2 cache on my board and was wondering if this hack would help performance. Here it is: REGEDIT4 SecondLevelDataCache=dword:00000200.

Windows Hardware 9627 This topic was started by pr-man, 2000-03-14 16:53

Discussion 8

pr-man

1030 Posts
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Joined 2000-02-19

#12912

2000-03-14 17:53

Someone hack the detinator drivers

Creative Labs Blaster Banshee

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Responses to this topic

pfarrar

2 Posts
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Joined 1999-12-31

#12913

2000-03-14 23:40

This is only if Win2k can't detect your L2 cache size automatically.

200 = 512 in Hex ie. 512K

You need to put 400 if you have 1MB.

pr-man

1030 Posts
Location -
Joined 2000-02-19

#12914

2000-03-15 02:56

ok well i checked my registry and noticed that mine is set to

"SecondLevelDataCache"=dword:00000000"

Does that mean that Win2k is not even seeing any of my 1 meg L2 cache?

Unrealistic

15 Posts
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Joined 2000-03-12

#12915

2000-03-15 05:40

Wow, mine is all zeros too. Can someone elaborate on this further?

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Ekstreme

479 Posts
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Joined 1999-10-30

#12916

2000-03-15 06:34

This tweaks relieves NT of the task of detectin the L2 cache of your CPU, that IT!

1meg cache on your CPU?? I don't think so. when you change the value, set it to decimal and input the correct ammount. You will probably not even notic any change to your system running. it's just makes NT's life a lil easier during hardware poling

nam ng

34 Posts
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Joined 1999-10-14

#12917

2000-03-15 06:50

On older SMP machines which share the L2 cache, this setting makes significant noticable difference in performance. And on those old mobos the L2 cache-size varied with manufacturers, the original assumption of L2=256K was the default.

[This message has been edited by nam ng (edited 15 March 2000).]

Turbo Grunkamoj

71 Posts
Location -
Joined 1999-11-03

#12918

2000-03-15 17:13

So what you are saying is:
If "they are all zeros", then win2k will still use the 512kb you might have but it autodetects them?
Or are there zeros an indication that win2k doesnt use it at all?