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Hi, all!
I would like to do some experiment, and want to manually enable or disable the prefetcher of the cache. The system I am using is Linux 2.6.20 and the processor is Intel Core 2.
Would you give some suggestion to implement this function or tell me some literatures i shall refer to?
Thanks a lot!
I would like to do some experiment, and want to manually enable or disable the prefetcher of the cache. The system I am using is Linux 2.6.20 and the processor is Intel Core 2.
Would you give some suggestion to implement this function or tell me some literatures i shall refer to?
Thanks a lot!
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Quoting - zhangyihere
Hi, all!
I would like to do some experiment, and want to manually enable or disable the prefetcher of the cache. The system I am using is Linux 2.6.20 and the processor is Intel Core 2.
Would you give some suggestion to implement this function or tell me some literatures i shall refer to?
Thanks a lot!
I would like to do some experiment, and want to manually enable or disable the prefetcher of the cache. The system I am using is Linux 2.6.20 and the processor is Intel Core 2.
Would you give some suggestion to implement this function or tell me some literatures i shall refer to?
Thanks a lot!
I think that the purpose of "Prefetching"is to access address early whenuser's application is busy on computing work - (especially if the data is not in cache, it will be very expensive to load it from main memory when using it).
I saw that Intel C++ compiler professional Edit includes "_MM_INLINE_COMMAND static void __cdecl _mm_prefetch(char const *a, int sel)" in xmm_func.h - you can go to http://software.intel.com/en-us/forums/intel-c-compiler/ to create a new thread to discuss its usage.
Regards, Peter
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Quoting - zhangyihere
I would like to do some experiment, and want to manually enable or disable the prefetcher of the cache. The system I am using is Linux 2.6.20 and the processor is Intel Core 2.
Would you give some suggestion to implement this function or tell me some literatures i shall refer to?
Would you give some suggestion to implement this function or tell me some literatures i shall refer to?
A non-temporal store to a cache line will evict it from cache, regardless of MSR setting. It's not a useful alternative where prefetch disabling would be used to improve performance.

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