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

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Message-ID: <CABPqkBT0P=GKNb6ypjaPxe4dEwShHk37mdrX0RtodMm44gaE+Q@mail.gmail.com>
Date:   Wed, 18 Jul 2018 14:55:14 -0700
From:   Stephane Eranian <eranian@...gle.com>
To:     Jiri Olsa <jolsa@...nel.org>, LKML <linux-kernel@...r.kernel.org>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>
Subject: [RFC] perf annotate: option to report global percentage

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?
Thanks.