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Date: Wed, 27 Apr 2011 12:05:24 -0700
Message-ID: <BANLkTinA_PN_8nGDz_4SJcVZbagPndca+Q@mail.gmail.com>
Subject: Re: [PATCH] perf events: Add stalled cycles generic event - PERF_COUNT_HW_STALLED_CYCLES
From: Arun Sharma <arun@sharma-home.net>
To: Ingo Molnar <mingo@elte.hu>
Cc: Arun Sharma <asharma@fb.com>, Stephane Eranian <eranian@google.com>,
        Arnaldo Carvalho de Melo <acme@infradead.org>,
        linux-kernel@vger.kernel.org, Andi Kleen <ak@linux.intel.com>,
        Peter Zijlstra <peterz@infradead.org>, Lin Ming <ming.m.lin@intel.com>,
        Arnaldo Carvalho de Melo <acme@redhat.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>, eranian@gmail.com,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Andrew Morton <akpm@linux-foundation.org>
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On Wed, Apr 27, 2011 at 9:27 AM, Ingo Molnar <mingo@elte.hu> wrote:

>
> That way we get a 'hidden overhead' profile: a profile of frequently executed
> code which executes in the CPU in a suboptimal way.
>
> So we should probably offer both events.
>

Yes - certainly.

 -Arun
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