Hi, I'm glad you like the article. The process how I went from TMAM metric to particular event that was used to calculate it is describe in the TMAM metrics table: https://download.01.org/perfmon/TMA_Metrics.xlsx

In the same row for DRAM_bound metric there is precise event PEBS specified that we can use for locating the issue. Sampling on the precise event will let us detect exact place in the code where we have the most amount of L3 misses.

Let me know if you have further questions!