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From: David Ahern <dsahern@gmail.com>
To: Pekka Enberg <penberg@iki.fi>,
	Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Pekka Enberg <penberg@kernel.org>,
	Hemant Kumar <hkshaw@linux.vnet.ibm.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Oleg Nesterov <oleg@redhat.com>,
	"hegdevasant@linux.vnet.ibm.com" <hegdevasant@linux.vnet.ibm.com>,
	Ingo Molnar <mingo@redhat.com>,
	"anton@redhat.com" <anton@redhat.com>,
	"systemtap@sourceware.org" <systemtap@sourceware.org>,
	Namhyung Kim <namhyung@kernel.org>,
	Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
	"aravinda@linux.vnet.ibm.com" <aravinda@linux.vnet.ibm.com>
Subject: Re: [PATCH v4 2/3] Support for perf to probe into SDT markers:
Date: Fri, 25 Oct 2013 09:20:11 -0600	[thread overview]
Message-ID: <526A8C2B.7000401@gmail.com> (raw)
In-Reply-To: <F53BA283-A194-4057-8409-27FD3ECFDF2E@iki.fi>

On 10/25/13 8:20 AM, Pekka Enberg wrote:
>> Technically feasible. But then we would have to parse each of the
>> libraries and executables to list them. Right? I am not sure if such a
>> delay is acceptable.
>
> You could do it at 'perf list' time or even build time and cache it. And add lazy discovery to 'perf record' and friends.

Instead searching all the known files or building a cache, how about 
just having an option like: perf list <DSO>. perf-record could still do 
the probe magic behind the scenes.

David

  reply	other threads:[~2013-10-25 15:20 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-23  5:04 [PATCH v4 0/3] perf support to SDT markers Hemant Kumar
2013-10-23  5:04 ` [PATCH v4 1/3] SDT markers listing by perf: Hemant Kumar
2013-10-23  5:05 ` [PATCH v4 2/3] Support for perf to probe into SDT markers: Hemant Kumar
2013-10-24  5:45   ` Masami Hiramatsu
2013-10-24 10:25     ` Hemant Kumar
2013-10-25 12:38   ` Pekka Enberg
2013-10-25 12:59     ` Srikar Dronamraju
2013-10-25 14:20       ` Pekka Enberg
2013-10-25 15:20         ` David Ahern [this message]
2013-10-28  8:48           ` Pekka Enberg
2013-10-28 16:59             ` David Ahern
2013-10-28 18:45               ` Pekka Enberg
2013-10-29  9:55                 ` Hemant Kumar
2013-10-29 14:05                   ` Pekka Enberg
2013-10-29 19:41                     ` Hemant Kumar
2013-10-30 10:22                 ` Masami Hiramatsu
2013-10-26  9:50       ` Ingo Molnar
2013-10-28  8:56         ` Pekka Enberg
2013-10-28 10:57         ` Masami Hiramatsu
2013-10-29  5:50         ` Namhyung Kim
2013-10-26 11:16     ` Frank Ch. Eigler
2013-10-28  8:40       ` Pekka Enberg
2013-10-28 10:34         ` Ingo Molnar
2013-10-30 10:05       ` Masami Hiramatsu
2013-10-30 11:51         ` Pekka Enberg
2013-10-31  9:59           ` Ingo Molnar
2013-10-31 10:54           ` Mark Wielaard
2013-10-31 10:57             ` Ingo Molnar
2013-10-31 13:12               ` Peter Zijlstra
2013-10-31 13:23               ` Mark Wielaard
2013-10-30 13:30         ` Hemant Kumar
2013-10-28 11:23     ` Masami Hiramatsu
2013-10-28 12:42       ` Pekka Enberg
2013-10-28 14:11         ` Srikar Dronamraju
2013-10-28 14:21           ` Pekka Enberg
2013-10-28 17:31             ` Srikar Dronamraju
2013-10-28 17:48               ` Pekka Enberg
2013-10-29  3:19                 ` Masami Hiramatsu
2013-10-29  5:31                   ` Namhyung Kim
2013-10-29 14:51                   ` Mark Wielaard
2013-10-29 19:54                     ` Pekka Enberg
2013-10-29  2:51               ` Masami Hiramatsu
2013-10-23  5:05 ` [PATCH v4 3/3] Documentation regarding perf/sdt Hemant Kumar

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