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From: Namhyung Kim <namhyung@kernel.org>
To: Bram Stolk <b.stolk@gmail.com>
Cc: Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>,
	linux-perf-users@vger.kernel.org, kernel-team@lge.com
Subject: Re: Adding a recording delay interferes with symbols/call-stack
Date: Thu, 2 Nov 2017 16:07:43 +0900	[thread overview]
Message-ID: <20171102070743.GC23303@sejong> (raw)
In-Reply-To: <CABYXEksfK4CwgrogBZ=EZWQubOWb8UDxzw22o_pH3TQmmk6Htg@mail.gmail.com>

On Thu, Nov 02, 2017 at 12:01:24AM -0700, Bram Stolk wrote:
> Thanks Namhyung,
> 
> I tried the patch, but still no app symbols:
> 
> perf record --delay=1000 --freq 2000 --call-graph dwarf ./bench
> ...
> [ perf record: Woken up 2 times to write data ]
> [ perf record: Captured and wrote 0.347 MB perf.data (41 samples) ]
> 
> perf report -g 'graph,0.25,callee'

Hmmm... could you please show me whether MMAP2 events are recorded?

  $ perf report -D | tail

Thanks,
Namhyung

  reply	other threads:[~2017-11-02  7:07 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-30 20:25 Adding a recording delay interferes with symbols/call-stack Bram Stolk
2017-10-31 14:25 ` Arnaldo Carvalho de Melo
2017-10-31 17:10   ` Bram Stolk
2017-10-31 19:14     ` Arnaldo Carvalho de Melo
2017-11-01  4:36       ` Bram Stolk
2017-11-02  6:20         ` Namhyung Kim
2017-11-02  7:01           ` Bram Stolk
2017-11-02  7:07             ` Namhyung Kim [this message]
2017-11-02  7:10               ` Bram Stolk
2017-11-03 18:41             ` Arnaldo Carvalho de Melo

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