linux-kernel - Re: [PATCH] perf report: distinguish between inliners in the same function

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Message-ID: <ec980cd2-f595-3ed5-5276-4d687480e621@linux.intel.com>
Date:   Tue, 2 May 2017 10:11:14 +0800
From:   "Jin, Yao" <yao.jin@...ux.intel.com>
To:     Milian Wolff <milian.wolff@...b.com>, Linux-kernel@...r.kernel.org
Cc:     linux-perf-users@...r.kernel.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        David Ahern <dsahern@...il.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH] perf report: distinguish between inliners in the same
 function


SNIP

> ~~~~~
> $ perf report --stdio --inline --no-children
> Failed to open [ext4], continuing without symbols
> # To display the perf.data header info, please use --header/--header-only
> options.
> #
> #
> # Total Lost Samples: 0
> #
> # Samples: 499  of event 'cycles'
> # Event count (approx.): 329354953
> #
> # Overhead  Command    Shared Object      Symbol
> # ........  .........  .................  ................................
> #
>      96.70%  ex_random  ex_random          [.] main
> |
>              ---main
>                 __libc_start_main
>                 _start
> ...
> ~~~~~
>
> Note how no inlined frames are actually shown, because the first
> sample in main points to an IP that does not correspond to any
> inlined frames.

perf report -g address --inline --stdio

Did you try with "-g address" option? It's sorted by address.

But anyway, I like this patch. It works well in my test.

Thanks
Jin Yao