perf tool pmuevents: About arm64 a76 JSON
From: John Garry
Date: Wed Oct 02 2019 - 11:37:26 EST
Hi,
I noticed that the JSON to support a76 pmu events was added recently.
May I ask why we add explicit support for the common architectural and
microarch events (event id 0x0-0x3f), when they would be already
available from the kernel pmuv3 driver?
The ampere emag jsons do similar. Others don't.
The only advantage I see is that we have an event description, but I am
sure how useful that is.
Cheers,
John