linux-kernel - Re: [PATCH 01/11] perf tools script: Handle missing fields with -F +..

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Message-ID: <20190225134905.GB31136@kernel.org>
Date:   Mon, 25 Feb 2019 10:49:05 -0300
From:   Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     Andi Kleen <andi@...stfloor.org>, linux-perf-users@...r.kernel.org,
        linux-kernel@...r.kernel.org, jolsa@...nel.org,
        namhyung@...nel.org, eranian@...gle.com,
        Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 01/11] perf tools script: Handle missing fields with -F
 +..

Em Mon, Feb 25, 2019 at 01:56:42PM +0100, Jiri Olsa escreveu:
> On Sun, Feb 24, 2019 at 07:37:12AM -0800, Andi Kleen wrote:
> > From: Andi Kleen <ak@...ux.intel.com>
> > 
> > When using -F + syntax to add a field the existing defaults
> > are currently all marked user_set. This can cause errors when
> > some field is missing in the perf.data
> > 
> > This patch tracks the actually user set fields separately,
> > so that we don't error out in this case.
> > 
> > Before:
> > 
> > % perf record true
> > % perf script -F +metric
> > Samples for 'cycles:ppp' event do not have CPU attribute set. Cannot print 'cpu' field.
> > %
> > 
> > After
> > 
> > 5 perf record true
> > % perf script -F +metric
> >             perf 28936 278636.237688:          1 cycles:ppp:  ffffffff8117da99 perf_event_exec+0x59 (/lib/modules/4.20.0-odilo/build/vmlinux)
> > ...
> > %
> > 
> > Signed-off-by: Andi Kleen <ak@...ux.intel.com>
> 
> nice, that one was annoying
> 
> Acked-by: Jiri Olsa <jolsa@...nel.org>

Applied.

- Arnaldo