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From: "David S. Ahern" <daahern@cisco.com>
To: Frederic Weisbecker <fweisbec@gmail.com>,
	Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] perf tools: Add reference timestamp to perf header
Date: Mon, 13 Dec 2010 07:39:24 -0700	[thread overview]
Message-ID: <4D06301C.2090309@cisco.com> (raw)
In-Reply-To: <20101212201613.GA1784@nowhere>



On 12/12/10 13:16, Frederic Weisbecker wrote:

>>  int perf_session__create_kernel_maps(struct perf_session *self)
>>  {
>>  	int ret = machine__create_kernel_maps(&self->host_machine);
>> @@ -167,6 +190,9 @@ struct perf_session *perf_session__new(const char *filename, int mode, bool forc
>>  		 */
>>  		if (perf_session__create_kernel_maps(self) < 0)
>>  			goto out_delete;
>> +
>> +		if (perf_session__create_ref_time(self) < 0)
>> +			goto out_delete;
> 
> So, it does record it anytime?

Simplest to always add it the header as it does no harm if not used. To
make it conditional means adding an input parameter to
perf_session__new() and then updating all the callers.

Is the preference to make it conditional?

David


> 
>>  	}
>>  
>>  	perf_session__update_sample_type(self);
> 
> 
> Other than that, looks good!
> --
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  parent reply	other threads:[~2010-12-13 14:39 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-08  1:54 [PATCH 0/2] perf tools: add reference timestamp and use it in time history dump David Ahern
2010-12-08  1:54 ` [PATCH 1/2] perf tools: Add reference timestamp to perf header David Ahern
2010-12-12 20:16   ` Frederic Weisbecker
2010-12-13 13:15     ` Arnaldo Carvalho de Melo
2010-12-13 16:58       ` Arnaldo Carvalho de Melo
2010-12-13 14:39     ` David S. Ahern [this message]
2010-12-13 15:54       ` Frederic Weisbecker
2010-12-13 16:48         ` Arnaldo Carvalho de Melo
2010-12-13 17:09           ` Frederic Weisbecker
2010-12-13 17:11             ` Peter Zijlstra
2010-12-13 17:13               ` Peter Zijlstra
2010-12-13 17:23                 ` Frederic Weisbecker
2010-12-13 17:37                   ` Peter Zijlstra
2010-12-13 17:50                     ` Frederic Weisbecker
2010-12-13 17:15               ` Frederic Weisbecker
2010-12-13 17:18                 ` Peter Zijlstra
2010-12-13 17:22                   ` Arnaldo Carvalho de Melo
2010-12-13 17:35                     ` Peter Zijlstra
2010-12-13 17:43                       ` Arnaldo Carvalho de Melo
2010-12-13 17:51                         ` Peter Zijlstra
2010-12-13 18:05                           ` Frederic Weisbecker
2010-12-13 18:10                             ` Peter Zijlstra
2010-12-13 17:47                       ` Peter Zijlstra
2010-12-13 17:49                         ` David S. Ahern
2010-12-13 17:57                           ` Peter Zijlstra
2010-12-13 18:01                             ` David S. Ahern
2010-12-13 18:06                               ` Peter Zijlstra
2010-12-13 18:20                                 ` David S. Ahern
2010-12-13 19:08                               ` Arnaldo Carvalho de Melo
2010-12-13 19:15                                 ` David S. Ahern
2010-12-13 19:22                                   ` Peter Zijlstra
2010-12-13 19:17                                 ` Peter Zijlstra
2010-12-13 17:48                       ` Peter Zijlstra
2010-12-13 17:14             ` Arnaldo Carvalho de Melo
2010-12-13 17:36           ` David S. Ahern
2010-12-13 17:51             ` Arnaldo Carvalho de Melo
2010-12-08  1:54 ` [PATCH 2/2] perf tools: Add option to show time history of event samples David Ahern
2010-12-08 21:06   ` Arnaldo Carvalho de Melo
2010-12-12 21:32   ` Frederic Weisbecker
2010-12-09 17:18 ` [PATCH 0/2] perf tools: add reference timestamp and use it in time history dump Arnaldo Carvalho de Melo
2010-12-12 21:39   ` Frederic Weisbecker
  -- strict thread matches above, loose matches on Subject: below --
2010-11-29 23:07 [PATCH 0/2] perf tools: reference timestamp and " David Ahern
2010-11-29 23:07 ` [PATCH 1/2] perf tools: add reference timestamp to perf header David Ahern

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