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From: Ingo Molnar <mingo@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Tom Huynh <tom.huynh@freescale.com>,
	jolsa@redhat.com, linux-kernel@vger.kernel.org, acme@kernel.org,
	mingo@redhat.com, paulus@samba.org,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 1/3] perf/e6500: Make event translations available in sysfs
Date: Mon, 9 Feb 2015 11:07:38 +0100	[thread overview]
Message-ID: <20150209100738.GA5461@gmail.com> (raw)
In-Reply-To: <20150209100242.GM23123@twins.programming.kicks-ass.net>


* Peter Zijlstra <peterz@infradead.org> wrote:

> On Fri, Feb 06, 2015 at 04:43:54PM -0600, Tom Huynh wrote:
> >  arch/powerpc/perf/e6500-events-list.h         | 289 ++++++++++++++++++++++++++
> 
> That's a lot of events to stuff in the kernel, would a 
> userspace list not be more convenient?
> 
> ISTR there being various discussions on providing support 
> for that in tools/perf, Jiri?

As long as it's in a single well organized place in tools/, 
I'd be fine with that solution as well.

What doesn't work very well is disjunct, disorganized, 
inconsistent event descriptions all across the tooling and 
platform landscape - putting static tables into sysfs is a 
marked improvement over that, despite its memory usage.

Thanks,

	Ingo

  reply	other threads:[~2015-02-09 10:07 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-06 22:43 [PATCH 0/3] Add e6500 perf events to sysfs and update perf doc Tom Huynh
2015-02-06 22:43 ` [PATCH 1/3] perf/e6500: Make event translations available in sysfs Tom Huynh
2015-02-09 10:02   ` Peter Zijlstra
2015-02-09 10:07     ` Ingo Molnar [this message]
2015-02-09 12:11       ` Jiri Olsa
2015-02-09 13:25         ` Ingo Molnar
2015-02-09 20:40           ` Andi Kleen
2015-02-11  0:19             ` Scott Wood
2015-02-18 20:56               ` Ingo Molnar
2015-02-18 21:31                 ` Andi Kleen
2015-02-16 16:10             ` Tom Huynh
2015-03-27 21:34               ` Kim Phillips
2015-03-28  0:32                 ` Andi Kleen
2015-02-06 22:43 ` [PATCH 2/3] perf/e6500: Create a sysfs format entry for e6500 events Tom Huynh
2015-02-06 22:43 ` [PATCH 3/3] perf/doc: Update perf_event_attr struct Tom Huynh

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