How do I modify CPU Cache L1, Cache L2 and Cache L3?

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Can I use namespace System.Runtime.Caching in order to modify the properties and values of CPU Cache L1, L2 and L3?

msdn.microsoft.com told me the namespace allows create new cache storage in windows like a virtual RAM.

But, i wanna program with Cache which is included by CPU. Can you tell me how to do that?

Thanks for solutions!

Posted 5-Sep-14 1:48am

user8x86

Updated 5-Sep-14 1:50am

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OriginalGriff · Accepted Answer · 2014-09-05T02:05:00

No, you can't.
L1, L2, L3 caches are typically inside the processor silicon in multicore processors: "normal" memory (which is what the System.Runtime.Caching namespace is concerned with) is external to the processor and is not a part of L1, L2, or L3 caches.

http://en.wikipedia.org/wiki/CPU_cache#Multi-level_caches[^]

**Zoltán Zörgő** · Accepted Answer · 2014-09-05T02:10:00

What???
Do you know what CPU cache is? I doubt. At least read wikipedia: http://en.wikipedia.org/wiki/CPU_cache[^]

It would be a disaster if one could modify those cache values. CPU cache and runtime cache is totally different things, on totally different level of functionality regarding running code. The first one is on the lowest, whilst the other one is on the highest edge of this structure.

You can't directly influence the behavior of the CPU processing pipeline - where CPU caches work. You can, however optimize - but less in .net :(

Some lecture: http://onward-conference.org/2011/images/Pueschel_2011_AutomaticPerformanceProgramming_Onward11.pdf[^]

How do I modify CPU Cache L1, Cache L2 and Cache L3?

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