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 Post subject: Optimize and enable L2 and L3 CPU caches in Windows
PostPosted: Sat Sep 16, 2017 12:22 pm 
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I just fall accidentally on this tip to optimize the CPU ! I don't remember seeing it here.

It was in french but here it is in english but just for L2 :
http://www.inklineglobal.com/tips/11_cpu.html

Reboot...

And for L3, you just have to add a new DWORD 32 BITS value at exactly the same regedit place and rename it : thirdLevelDataCache .
In CPU-Z, check the cache level 3 value, here 6 MBytes, so 6 x 1024 = 6144, for the value of "thirdLevelDataCache ".
Image

Reboot...

Apparetly, it gives some extra power to the computer especially for multitask, I can notice it so far ! The cubase cpu monitor is quieter on the same heavy file.

Cheers !

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 Post subject: Re: Optimize and enable L2 and L3 CPU caches in Windows
PostPosted: Sun Sep 17, 2017 2:35 am 
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I found this on the Microsoft site:

https://technet.microsoft.com/en-us/lib ... 38581.aspx

Do not change the SecondLevelDataCache entry
Some third-party sources have erroneously reported that modifying the SecondLevelDataCache registry entry in HKEY_LOCAL_MACHINE\System\CurrentControlSet \Control\Session Manager\Memory Management can enhance system performance. The second level (L2) cache is recognized by the operating system and is fully utilized regardless of the setting of this parameter.

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 Post subject: Re: Optimize and enable L2 and L3 CPU caches in Windows
PostPosted: Sun Sep 17, 2017 6:13 am 
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Oh ! Thanks a lot ! I undone that !
But I leave L3 like that, I noticed a power gain, it must come from that..?..

Merci !

I've found this link :
https://msdn.microsoft.com/en-us/librar ... 8(v=bts.10).aspx

in which I did few tips to see... Saved regedit entirely before ! :D

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 Post subject: Re: Optimize and enable L2 and L3 CPU caches in Windows
PostPosted: Sun Sep 17, 2017 6:38 am 
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Thanks again, Wourtez !

After some research, I discovered that those tips are extremly old (for computer world, at least !) ! And the "SecondLevelDataCache" is certainly not reconized by windows !
Which proves me again that one can easily notice beautiful things but unreal which one desires ! :D :lol: :P

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 Post subject: Re: Optimize and enable L2 and L3 CPU caches in Windows
PostPosted: Sun Sep 17, 2017 10:14 am 
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Works for me. i7-4700MQ 3.4GHz, Win 8.1 64 Pro. I see a slight but noticeable gain in boot time and general speed, nothing to scream about.

[EDIT] That's on my native notebook, not my Scope machine. I don't see how it would help Scope or XITE except booting up or DAWs and VSTs on top.

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Last edited by ronnie on Sun Sep 17, 2017 2:17 pm, edited 2 times in total.

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