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Alpha EV6 events

This is a list of Alpha EV6 CPU's performance counter event types. Please see alpha architecture reference

NameDescriptionCounters usableUnit mask options
CYCLES Total cycles all
RETIRED Retired instructions 1
COND_BRANCHES Retired conditional branches 1
BRANCH_MISPREDICTS Retired branch mispredicts 1
DTB_MISS Retired DTB single misses * 2 1
DTB_DD_MISS Retired DTB double double misses 1
ITB_MISS Retired ITB misses 1
UNALIGNED_TRAP Retired unaligned traps 1
REPLAY_TRAP Replay traps 1
Bottlenecks occur in surprising places, so don't try to second guess and put in a speed hack until you've proven that's where the bottleneck is. - Rob Pike