Comments on: How to Set Vista for your CPU L2 Cache memory http://www.windowsreference.com/windows-vista/how-to-set-vista-for-your-cpu-l2-cache-memory/ Windows 7 2008 2003 Vista XP 2000 Ms Office Tutorials Fixes Tips Fri, 19 Mar 2010 23:48:18 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: CrySystem.DLL FIX 64 Bit OS - Page 14 - AionSource.com http://www.windowsreference.com/windows-vista/how-to-set-vista-for-your-cpu-l2-cache-memory/comment-page-1/#comment-2854 CrySystem.DLL FIX 64 Bit OS - Page 14 - AionSource.com Tue, 03 Nov 2009 20:10:10 +0000 http://www.windowsreference.com/windows-vista/how-to-set-vista-for-your-cpu-l2-cache-memory/#comment-2854 [...] a CPU more than 10 years old this setting will do nothing. Larry Miller Microsoft MCSA Source: How to Set Vista for your CPU L2 Cache memory | Windows Reference So I guess you can delete them from your initial post __________________ And the people shall [...] [...] a CPU more than 10 years old this setting will do nothing. Larry Miller Microsoft MCSA Source: How to Set Vista for your CPU L2 Cache memory | Windows Reference So I guess you can delete them from your initial post __________________ And the people shall [...]

]]> By: Larry Miller http://www.windowsreference.com/windows-vista/how-to-set-vista-for-your-cpu-l2-cache-memory/comment-page-1/#comment-2284 Larry Miller Tue, 04 Aug 2009 05:11:29 +0000 http://www.windowsreference.com/windows-vista/how-to-set-vista-for-your-cpu-l2-cache-memory/#comment-2284 This is a myth. The default value for this setting is 0, which tells Windows to auto-detect the correct value. Many settings in the registry work this way. The setting is only needed for ery old CPU's, prior to the Pentium II. In no event will Windows set the detected value in the registry, it will remain at 0. Windows only uses this value to optimize some low level memory allocations. The performance penalty for getting it wrong is very low, usually less than 2%. Windows does not use the cache, it is used only by the processor which will always use the full size. Bottom line: Unless you are using a CPU more than 10 years old this setting will do nothing. Larry Miller Microsoft MCSA This is a myth.

The default value for this setting is 0, which tells Windows to auto-detect the correct value. Many settings in the registry work this way. The setting is only needed for ery old CPU’s, prior to the Pentium II. In no event will Windows set the detected value in the registry, it will remain at 0.

Windows only uses this value to optimize some low level memory allocations. The performance penalty for getting it wrong is very low, usually less than 2%. Windows does not use the cache, it is used only by the processor which will always use the full size.

Bottom line: Unless you are using a CPU more than 10 years old this setting will do nothing.

Larry Miller
Microsoft MCSA

]]> By: Anonymous http://www.windowsreference.com/windows-vista/how-to-set-vista-for-your-cpu-l2-cache-memory/comment-page-1/#comment-1345 Anonymous Fri, 06 Mar 2009 22:52:57 +0000 http://www.windowsreference.com/windows-vista/how-to-set-vista-for-your-cpu-l2-cache-memory/#comment-1345 This only applies to CPUs with an off chip cache, so unless you're running Vista on a Pentium II [codename Tonga] or older, this will have no effect. That's why Windows doesn't do it by itself. This only applies to CPUs with an off chip cache, so unless you’re running Vista on a Pentium II [codename Tonga] or older, this will have no effect.
That’s why Windows doesn’t do it by itself.

]]> By: Tad http://www.windowsreference.com/windows-vista/how-to-set-vista-for-your-cpu-l2-cache-memory/comment-page-1/#comment-85 Tad Fri, 22 Aug 2008 10:47:54 +0000 http://www.windowsreference.com/windows-vista/how-to-set-vista-for-your-cpu-l2-cache-memory/#comment-85 This dose not work at all. I have tied this and Default is still at 1024 on a AMD 64 X2 Dual Core 6000+ /2 1024 l2. Windows Vista would not let me or change it to 2048 or even lower it. I have Tired this in Vista 32 / X64 bit SP1 Versions. i think its more for Intel Processors This dose not work at all. I have tied this and Default is still at 1024 on a AMD 64 X2 Dual Core 6000+ /2 1024 l2. Windows Vista would not let me or change it to 2048 or even lower it. I have Tired this in Vista 32 / X64 bit SP1 Versions. i think its more for Intel Processors

]]> By: John L. Galt http://www.windowsreference.com/windows-vista/how-to-set-vista-for-your-cpu-l2-cache-memory/comment-page-1/#comment-86 John L. Galt Mon, 19 May 2008 19:38:31 +0000 http://www.windowsreference.com/windows-vista/how-to-set-vista-for-your-cpu-l2-cache-memory/#comment-86 From my understanding this key only comes into play when Vista cannot / does not read the L2 cache level from HAL. Also, leaving it at 0 for some reason makes Vista default to a 256 K L2. Am I incorrect in this understanding? From my understanding this key only comes into play when Vista cannot / does not read the L2 cache level from HAL. Also, leaving it at 0 for some reason makes Vista default to a 256 K L2.

Am I incorrect in this understanding?

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