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measuring remote misses

srsarangi
Beginner
129 Views
hi,
I am running vtune for linux on a system that has two hyperthreaded pentium xeons. This means that there are four virtual processors. I wanted to run a parallel app. and measure the coherence traffic. In specific I wanted to measure the following:

a) The percentage of L2 read misses that are satisfied by reading data from another processor's cache, rather than reading it from main memory. Basically the number of remote misses and the number of main memory misses.

Any help is appreciated.
thanks
smruti
0 Kudos
1 Reply
jeffrey-gallagher
129 Views
Smruti,
Doesn't the thread view show you what you need per logical CPU?
Sorry if I'm misunderstanding the question, but what you're describing is exactly what you'll see if you just look for L2 cache misses, and head to the thread view.
I think!
Try and report back, ok?
cheers
jdg
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