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how much % of all instructions executed accessing memory?

vtuneuser
Beginner
167 Views
is there a way to calculate the percentage of all instructions executed in accessing the memory from the profile results of the vtune?
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David_A_Intel1
Employee
167 Views

Assuming you are referring to the IA32 architecture, unfortunately, there is no 'generic' memory event that you could count.

You can do what you ask if you are specific about the memory accesses. For example, you could count '2nd-level cache read misses' and then determine what percent of all instructions retired that was. See the Event Ratios, which allow you to select predefined ratios as well as define your own.

Regards,

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