linux-kernel - Re: [RFC] perf script: modify field selection option

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Message-ID: <3289185b-f366-35cb-1733-cc35d15c5228@gmail.com>
Date:   Mon, 20 Nov 2017 15:37:41 -0700
From:   David Ahern <dsahern@...il.com>
To:     Stephane Eranian <eranian@...gle.com>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     Jiri Olsa <jolsa@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>, mingo@...e.hu,
        Andi Kleen <ak@...ux.intel.com>
Subject: Re: [RFC] perf script: modify field selection option

On 11/20/17 1:53 PM, Stephane Eranian wrote:
> Hi,
> 
> I have been using the perf script -F option on the latest perf and I
> find it not very convenient to use. I appreciate the + and - prefix to
> field names to add or suppress them. But most of the time, I want to
> print only one or two fields and I have to guess which ones are there
> by default so I can suppress them. I think there should be a way to
> say: start from no fields. I understand why you have default to
> maintain compatibility with older perf script but I would like a
> syntax to say: remove defaults. For instance:
> 
> $ perf script -F --,+ip,+syms .....
> 
> Where -- would mean drop all defaults.
> 
> Any better suggestions?
> 

-all,... ?