This is a list of Alpha EV67 CPU's performance counter event types. Please see alpha architecture reference
| Name | Description | Counters usable | Unit mask options |
| CYCLES | Total cycles | 0, 1 | |
| INSTRUCTIONS | Retired instructions | 0 | |
| BCACHE_MISS | Bcache misses/long probe latency | 1 | |
| MBOX_REPLAY | Mbox replay traps | 1 |
More computing sins are committed in the name of efficiency (without necessarily achieving it) than for any other single reason - including blind stupidity.- W. A. Wulf