Memory part 7: Memory performance tools

Posted Nov 17, 2007 21:39 UTC (Sat) by anton (subscriber, #25547)
In reply to: Memory part 7: Memory performance tools by Ponto
Parent article: Memory part 7: Memory performance tools

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.