From: Dave Chinner <david@fromorbit.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>,
Johannes Berg <johannes@sipsolutions.net>,
Lin Ming <ming.m.lin@intel.com>,
Reinette Chatre <reinette.chatre@intel.com>,
Robert Richter <robert.richter@amd.com>,
Corey Ashford <cjashfor@linux.vnet.ibm.com>,
Peter Zijlstra <peterz@infradead.org>, Greg KH <greg@kroah.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Paul Mundt <lethal@linux-sh.org>,
"eranian@gmail.com" <eranian@gmail.com>,
"Gary.Mohr@Bull.com" <Gary.Mohr@bull.com>,
"arjan@linux.intel.com" <arjan@linux.intel.com>,
"Zhang, Yanmin" <yanmin_zhang@linux.intel.com>,
Paul Mackerras <paulus@samba.org>,
"David S. Miller" <davem@davemloft.net>,
Russell King <rmk+kernel@arm.linux.org.uk>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Will Deacon <will.deacon@arm.com>,
Maynard Johnson <mpjohn@us.ibm.com>, Carl Love <carll@us.ibm.com>,
Kay Sievers <kay.sievers@vrfy.org>,
lkml <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [RFC][PATCH v1 06/15] perf: export tracepoint events via sysfs: iwlwifi and iwlwifi_io
Date: Fri, 23 Jul 2010 11:37:16 +1000 [thread overview]
Message-ID: <20100723013716.GA7362@dastard> (raw)
In-Reply-To: <1279806844.3319.3.camel@gandalf.stny.rr.com>
On Thu, Jul 22, 2010 at 09:54:04AM -0400, Steven Rostedt wrote:
> On Thu, 2010-07-22 at 15:48 +0200, Ingo Molnar wrote:
> > * Steven Rostedt <rostedt@goodmis.org> wrote:
>
> > Yeah - and the point of this submission is to allow the discussion of how to
> > achieve these registrations.
> >
> > Driver authors will want to have some control - for example the place where
> > the events directory shows up in sysfs within the driver's directory structure
> > - etc.
> >
> > But we indeed want to automate it as much as possible.
>
> Perhaps we can create a TRACE_EVENT_PATH() macro, that allows the
> developer to specify the path that the event will be seen in sysfs?
Perhaps you could build that into the event class definition as well
so each separate class in a subsystem can be placed in it's own
sub-directory?
That would make turning on and off specific classes trace points so
much simpler than it now, espcially for XFS where we now have > 250
tracepoints that are mostly defined by event classes already...
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
next prev parent reply other threads:[~2010-07-23 1:37 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-22 11:13 [RFC][PATCH v1 06/15] perf: export tracepoint events via sysfs: iwlwifi and iwlwifi_io Lin Ming
2010-07-22 11:20 ` Johannes Berg
2010-07-22 13:30 ` Steven Rostedt
2010-07-22 13:48 ` Ingo Molnar
2010-07-22 13:54 ` Steven Rostedt
2010-07-23 1:37 ` Dave Chinner [this message]
2010-07-23 2:14 ` Steven Rostedt
2010-07-23 2:45 ` Lin Ming
2010-07-23 3:57 ` Steven Rostedt
2010-07-23 4:20 ` Dave Chinner
2010-07-23 0:53 ` Lin Ming
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