i7 instruction costs

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i7 instruction costs

 
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  #1
May 31st, 2009
Hi,
i have been looking for this and can't find anywhere about the subject. I would like to know how many clock cycles does it takes to execute each instruction in complete asm instruction set for Intel i7 microprocessor. (including SSE & FPU instructions). Does any one has a list of this values ?
Thanks in advance

Nulik
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Re: i7 instruction costs

 
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Jun 1st, 2009
Well, clock cycles certainly do not equate to execution time on modern processors. But, if you still think you need to know this information, then go directly to the source:

http://www.intel.com/design/corei7/documentation.htm
http://www.intel.com/products/proces...uals/index.htm

Those are free downloads!
while (CPU is present) {some assembly required}
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Re: i7 instruction costs

 
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Jun 1st, 2009
Originally Posted by Evenbit View Post
Well, clock cycles certainly do not equate to execution time on modern processors. But, if you still think you need to know this information, then go directly to the source:
i know this , and this is what i am asking, so i could align my code for optimum pipelining.
have them all, nothing helpful there,
no more than do dirty work timing each one, i guess
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