From: Peter Zijlstra <peterz@infradead.org>
To: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>,
Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 00/10] perf, x86: Add northbridge counter support for AMD family 15h
Date: Wed, 20 Jun 2012 12:16:13 +0200 [thread overview]
Message-ID: <1340187373.21745.95.camel@twins> (raw)
In-Reply-To: <20120620100031.GI1478@erda.amd.com>
On Wed, 2012-06-20 at 12:00 +0200, Robert Richter wrote:
>
> And wrt counter rotation, this only affects code to assign counters.
> You don't need a separate pmu for this.
It makes it easier though, on unplug you would otherwise need to filter
what events are uncore and migrate those to another online cpu of the
same nb instead of all events..
Also, what cpu on the NB receives the PMI?
Sure it can be done, just not pretty. Combine that with all the other
special casing like patches 3 and 10 and one really starts to wonder if
its all worth it.
next prev parent reply other threads:[~2012-06-20 10:16 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-19 18:10 [PATCH 00/10] perf, x86: Add northbridge counter support for AMD family 15h Robert Richter
2012-06-19 18:10 ` [PATCH 01/10] perf, amd: Rework northbridge event constraints handler Robert Richter
2012-06-19 18:10 ` [PATCH 02/10] perf, x86: Rework counter reservation code Robert Richter
2012-06-19 18:10 ` [PATCH 03/10] perf, x86: Use bitmasks for generic counters Robert Richter
2012-06-19 18:10 ` [PATCH 04/10] perf, x86: Rename Intel specific macros Robert Richter
2012-06-19 18:10 ` [PATCH 05/10] perf, x86: Move Intel specific code to intel_pmu_init() Robert Richter
2012-06-20 9:36 ` Peter Zijlstra
2012-06-20 14:22 ` Robert Richter
2012-06-19 18:10 ` [PATCH 06/10] perf, amd: Unify AMD's generic and family 15h pmus Robert Richter
2012-06-19 18:10 ` [PATCH 07/10] perf, amd: Generalize northbridge constraints code for family 15h Robert Richter
2012-06-19 18:10 ` [PATCH 08/10] perf, amd: Enable northbridge counters on " Robert Richter
2012-06-19 18:10 ` [PATCH 09/10] perf, x86: Improve debug output in check_hw_exists() Robert Richter
2012-06-19 18:10 ` [PATCH 10/10] perf, amd: Check northbridge event config value Robert Richter
2012-06-20 8:36 ` [PATCH 00/10] perf, x86: Add northbridge counter support for AMD family 15h Stephane Eranian
2012-06-20 8:54 ` Peter Zijlstra
[not found] ` <CABPqkBS9hRxKLsecVK+AgRue6oqTtAg4=0Dpd5Z2VwAUja50fw@mail.gmail.com>
2012-06-20 9:29 ` Robert Richter
2012-06-20 9:38 ` Peter Zijlstra
2012-06-20 10:00 ` Robert Richter
2012-06-20 10:16 ` Peter Zijlstra [this message]
2012-06-20 12:29 ` Robert Richter
2012-06-20 15:54 ` Peter Zijlstra
2012-06-20 16:08 ` Peter Zijlstra
2012-06-20 16:21 ` Stephane Eranian
2012-06-20 10:46 ` Stephane Eranian
2012-06-20 12:41 ` Robert Richter
2012-06-20 9:41 ` Peter Zijlstra
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