linux-kernel - Re: [RFC] perf annotate: option to report global percentage

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Message-ID: <20180719082539.GB18667@krava>
Date:   Thu, 19 Jul 2018 10:25:39 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Stephane Eranian <eranian@...gle.com>
Cc:     Jiri Olsa <jolsa@...nel.org>, LKML <linux-kernel@...r.kernel.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>
Subject: Re: [RFC] perf annotate: option to report global percentage

On Wed, Jul 18, 2018 at 02:55:14PM -0700, Stephane Eranian wrote:
> Hi Jiri,
> 
> As far as I know, once you go into annotate mode, via perf report TUI
> mode, the percentage you see per instruction is relative to the
> function. I would like the option to display the total percentage,
> i..e, the importance of the instruction for the entire run. Right now,
> if I want that, I need to do function_percentage * insn_percentage by
> hand. This is not convenient. Having a key toggle would be very
> useful, worst case a cmdline option.
> 
> What do you think?

hi,
that should be simple to add, we already have the 'F' in the
main browser window to toggle among full/filtered scale

I'll try to add something similar for annotation window

jirka