Software Tuning, Performance Optimization & Platform Monitoring
Discussion regarding monitoring and software tuning methodologies, Performance Monitoring Unit (PMU) of Intel microprocessors, and platform updating.
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About architectural and nonarchitectural performance-monitoring events

Chenjie_Y_
初学者
546 次查看

Hello all,

I am reading the manual, Intel® 64 and IA-32 Architectures Software Developer’s Manual, chapter 19 performance-monitoring events,

I find all the events are classified into either architectural or nonarchitectural catalog.

Can any body tell me what's the intention of such classification, and what do architectrual and nonarchitestural stand for?

Thank you.

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Patrick_F_Intel1
546 次查看

Hello Chenjie,

Architectural means the event will be supported going forward. The event will always be present on future chips (unless the event is something like an L3 event and the chip doesn't have an L3).

"Not architectural events" may not be present in future chips.

Pat

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Chenjie_Y_
初学者
546 次查看

Thank  you Pat

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