Wow... what are you doing... writing a thesis on Sandy Bridge counters?
I'm guessing that the L2 clean line is not copied to L3 (since it is already in theL3)and the line in the L2cache is simply replaced with the data that caused the eviction. I'll ask someone who knows. Yes, I would not expect the 0xF0 WB event (L2_TRANS.L2_WB) to count L2 clean evictions. I'm not sure what the techinal definition of 'eviction' is. I can see that it says "you're outa here" but not that it says what happens to the line next. Pat