Multicore problem

[RKarn]

I have 4 core processor i5-3570. I run the multicore in a bare PC environment, no OS or kernel. Four cores are running properly. However, APs run 220 times slower than BSP.

I checked the running frequency using MPERF and APERF, it is 3.4GHZ, same as the processor speed. I measures clock ticks for a simple ADD operation, AP runs extremely slow.

What I am missing? Any suggestions are helpful. Thanks in advance. mailto:rkarne@towson.edu rkarne@towson.edu

Thanks for quick response...It is Intel TM i5-3570....

Message was edited by: Ramesh Karne

[CarlosAM_INTEL]

Hello, multicore:

Thank you for contacting Intel Embedded Community.

In order to be on the same page, could you please clarify if the processors related to this forum are the https://ark.intel.com/products/65520/Intel-Core-i5-3570K-Processor-6M-Cache-up-to-3-80-GHz- Intel(R) Core (TM) i5-3570K, https://ark.intel.com/products/65521/Intel-Core-i5-3570T-Processor-6M-Cache-up-to-3-30-GHz- Intel(R) Core (TM) i5-3570T, https://ark.intel.com/products/65702/Intel-Core-i5-3570-Processor-6M-Cache-up-to-3-80-GHz- Intel(R) Core (TM) i5-3570, https://ark.intel.com/products/65701/Intel-Core-i5-3570S-Processor-6M-Cache-up-to-3-80-GHz- Intel(R) Core (TM) i5-3570S, or others?

Waiting for your reply to this question.

Best regards,

Carlos_A.