linux-kernel - Re: [PATCHSET 0/8] perf tools: Fix scalability problem on callchain merging (v5)

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Message-ID: <87bo2sb5xd.fsf@sejong.aot.lge.com>
Date:	Mon, 14 Oct 2013 17:41:34 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCHSET 0/8] perf tools: Fix scalability problem on callchain merging (v5)

Hi Jiri,

On Mon, 14 Oct 2013 10:01:08 +0200, Jiri Olsa wrote:
> On Mon, Oct 14, 2013 at 01:50:09PM +0900, Namhyung Kim wrote:
>> On Sun, 13 Oct 2013 14:34:44 +0200, Jiri Olsa wrote:
>> > I put perf archive and data output in here if you're interested:
>> > http://people.redhat.com/jolsa/cc/
>> 
>> I can't download the data output (but the archive is fine).
>> 
>>   $ curl http://people.redhat.com/jolsa/cc/perf.data
>>   <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
>>   <html><head>
>>   <title>403 Forbidden</title>
>>   </head><body>
>>   <h1>Forbidden</h1>
>>   <p>You don't have permission to access /jolsa/cc/perf.data
>>   on this server.</p>
>>   <hr>
>>   <address>Apache Server at people.redhat.com Port 80</address>
>>   </body></html>
>
> oops, should be fixed now.. haven't checked persmissions :-\

I got it now, thanks.

But I couldn't reproduce the segfault (both for TUI and stdio).
Do you have any scenario?

  # ========
  # captured on: Mon Oct 14 17:30:03 2013
  # hostname : dhcp-26-214.brq.redhat.com
  # os release : 3.12.0-rc2+
  # perf version : 3.12.rc2.g9de23a
  # arch : x86_64
  # nrcpus online : 2
  # nrcpus avail : 2
  # cpudesc : Intel(R) Core(TM)2 Duo CPU T9400 @ 2.53GHz
  # cpuid : GenuineIntel,6,23,10
  # total memory : 1968996 kB
  # cmdline : /home/jolsa/linux-perf/tools/perf/perf record -g -e cycles:pp make -j 
  # event : name = cycles:pp, type = 0, config = 0x0, config1 = 0x0, config2 = 0x0, excl_usr = 
  # HEADER_CPU_TOPOLOGY info available, use -I to display
  # pmu mappings: cpu = 4, software = 1, tracepoint = 2, breakpoint = 5
  # ========
  #
  # Samples: 285K of event 'cycles:pp'
  # Event count (approx.): 173578957575
  ...

Thanks,
Namhyung
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