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From: David Ahern <dsahern@gmail.com>
To: Pekka Enberg <penberg@iki.fi>,
	Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: 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: Mon, 28 Oct 2013 10:59:52 -0600	[thread overview]
Message-ID: <526E9808.4030607@gmail.com> (raw)
In-Reply-To: <526E24EA.2040701@iki.fi>

On 10/28/13 2:48 AM, Pekka Enberg wrote:
> So I really hope this SDT effort and the ktap effort at least
> make some effort in unifying all the nice functionality that's
> simple to use and easy to discover. I really, really would
> at the end of the day, just 'perf trace' like I 'perf stat' or
> 'perf record'.

Agree. I see user's eyes glaze over with each command line option, and 
we have added aliases to embed some of the details as well as having 
sensible defaults.

I often use perf-list to lookup an exact event name, and I do not want 
to see it taking many seconds to minutes to run (not everyone is running 
on an SSD). I also run perf on many different OS versions with an NFS 
home directory, and do not want to see a cache explosion (I have buildid 
disabled for this reason).

David


  reply	other threads:[~2013-10-28 16:59 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
2013-10-28  8:48           ` Pekka Enberg
2013-10-28 16:59             ` David Ahern [this message]
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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