Re: [PATCH] arm64: dts: allwinner: a64: Drop PMU node

Harald Geyer
2019-08-12T18:22:36Z

Vasily Khoruzhick writes:
> OK, so what should we do? 'perf top'/'perf record' work fine if PMU
> node is dropped, but they don't work if PMU node is present (even with
> interrupts dropped).

Really? Even if you tell it to only listen to software events? (Which
is the only thing you get without a PMU anyway, I believe.)

> I'd prefer to have 'perf top' and 'perf record'
> working instead of 'perf stat'

I think, if a broken PMU confuses 'perf top' beyond usability, it
should be fixed.

Harald

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