I would write a small program that does cache ping-pong, and then look at which events are counted. For the "AMD64" events I would especially look at DATA_CACHE_REFILLS_FROM_SYSTEM and DATA_CACHE_LINES_EVICTED with various combinations of cache states for the Unit Mask options. PIPELINE_RESTART_DUE_TO_PROBE_HIT, DCACHE_MISS_LOCKED_INSTRUCTIONS, SYSTEM_READ_RESPONSES, CACHE_BLOCK_COMMANDS, PROBE_RESPONSES_AND_UPSTREAM_REQUESTS and HYPERTRANSPORT_LINK*_BANDWIDTH are probably also relevant.
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