Is it possible to disable or not use the Last Level Cache in Intel IvyBridge CPU?

Is it possible to disable or not use the Last Level Cache in Intel IvyBridge CPU?

Hi,

I want to do an experiment which test the performance degradation and effect on the scheduling when CPU has no shared Last Level Cache.

I was able to "disable" all caches, i.e., not allowing the OS to use the caches. 

However, I have to do some experiment when CPU only has the private L1 and L2 cache, and does not use the L3 shared cache. 

So my question is:

Is it possible to not use the L3 cache but use the L1 and L2 cache for the IvyBridge CPU? 

I looked at the Intel Developer Manual. I cannot find any text which confirm if this is possible or not. 

Could anyone help me?

Thanks,

 

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