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Date:   Mon, 4 Feb 2019 21:28:18 +0100
From:   Jiri Olsa <jolsa@redhat.com>
To:     Stephane Eranian <eranian@google.com>
Cc:     Arnaldo Carvalho de Melo <acme@kernel.org>,
        Alexey Budankov <alexey.budankov@linux.intel.com>,
        Jiri Olsa <jolsa@kernel.org>,
        lkml <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@kernel.org>,
        Namhyung Kim <namhyung@kernel.org>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Andi Kleen <ak@linux.intel.com>
Subject: Re: [RFC/PATCH 00/14] perf record: Add support to store data in
 directory
Message-ID: <20190204202818.GC4794@krava>
References: <20190203153018.9650-1-jolsa@kernel.org>
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 <20190204103643.GA18141@krava>
 <6bf24b7d-2bd3-8091-cf49-363c91e4e864@linux.intel.com>
 <20190204114144.GC18141@krava>
 <CABPqkBQpQX67NOysim7s-R84nAYipXJ+DgR=xYPi6zWQWgq4Zg@mail.gmail.com>
 <20190204192721.GI5593@kernel.org>
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On Mon, Feb 04, 2019 at 12:05:38PM -0800, Stephane Eranian wrote:

SNIP

> > > > > >
> > > > > > [jolsa@krava perf]$ ll result_1/
> > > > > > total 348
> > > > > > -rw-------. 1 jolsa jolsa 27624 Feb  4 11:35 data.0
> > > > > > -rw-------. 1 jolsa jolsa 56672 Feb  4 11:35 data.1
> > > > > > -rw-------. 1 jolsa jolsa 30824 Feb  4 11:35 data.2
> > > > > > -rw-------. 1 jolsa jolsa 49136 Feb  4 11:35 data.3
> > > > > > -rw-------. 1 jolsa jolsa 22712 Feb  4 11:35 data.4
> > > > > > -rw-------. 1 jolsa jolsa 53392 Feb  4 11:35 data.5
> > > > > > -rw-------. 1 jolsa jolsa 43352 Feb  4 11:35 data.6
> > > > > > -rw-------. 1 jolsa jolsa 46688 Feb  4 11:35 data.7
> > > > > > -rw-------. 1 jolsa jolsa  9068 Feb  4 11:35 header
> > > > >
> > > > > Awesome. What do you think about having it like this:
> > > > >
> > > > >   $ perf record --output result_1.data ... - writes data to a file
> > > > >
> > > > >   $ perf record --dir result_1 ... - or even
> > > > >   $ perf record --output_dir result_1 ... - writes data into a directory
> > > > >
> > > > > IMHO, this interface is simpler for a user.
> > > >
> > > > yep, seems more convenient.. I'll add it
> > > >
> > > But what happens if you do: perf record -o foo --output_dir foo.d?
> >
> > Should fail, i.e. either you use single-file or directory output, I
> > think.
> >
> Agreed

ok, will do that

thanks,
jirka