Re: [PATCH 2/4] perf vendor events arm64: AmpereOne: Mark affected STALL_* events impacted by errata

From: John Garry
Date: Fri Aug 11 2023 - 06:11:20 EST


On 10/08/2023 23:38, Ilkka Koskinen wrote:
why end with a '-'?

That's a great question! I wish, I remembered why I did that. Looking at other events with Errata field, they use '.'. I can fix those and submit the patchset again.

John, I took a look at it and it seems that if I use '.', perf will remove it. Here are two examples:

metrics.json:
"BriefDescription": "Impacted by errata, use metrics instead."

# perf list
[Impacted by errata, use metrics instead Spec update: Errata AC03_CPU_29]

vs.

"BriefDescription": "Impacted by errata, use metrics instead -"

# perf list

Impacted by errata, use metrics instead - Spec update: Errata AC03_CPU_29

ah, ok. I am not sure where the '.' removal is coming from.


---

So, I believe, I probably used the hyphen to make the 'perf list' output a little "prettier". Well, I just change to dot and it's fine.

Fine. Or we could consider changing the 'perf list' formatting code to add this '-' or similar automatically.

Thanks,
John