Re: [PATCH v2] perf stat: Align CSV output for summary mode

From: Arnaldo Carvalho de Melo
Date: Thu Mar 18 2021 - 09:16:57 EST

Em Wed, Mar 17, 2021 at 02:51:42PM -0700, Andi Kleen escreveu:
> > If you care about not breaking existing scripts, then the output they
> > get with what they use as command line options must continue to produce
> > the same output.
> It's not clear there are any useful ones (except for tools that handle
> both). It's really hard to parse the previous mess. It's simply not
> valid CSV.
> That's why I'm arguing that keeping compatibility is not useful here.
> We would be stuck with the broken mess as default forever.

Fair enough, lets fix the default then. Jin, can you please consider
adding a 'perf test' shell entry to parse the CSV mode with/without that
summary? This way we'll notice when the new normal gets broken.

- Arnaldo