From: Peter Zijlstra <peterz@infradead.org>
To: "Luck, Tony" <tony.luck@intel.com>
Cc: Vikas Shivappa <vikas.shivappa@linux.intel.com>,
"Shankar, Ravi V" <ravi.v.shankar@intel.com>,
"Yu, Fenghua" <fenghua.yu@intel.com>,
"Shivappa, Vikas" <vikas.shivappa@intel.com>,
"x86@kernel.org" <x86@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"hpa@zytor.com" <hpa@zytor.com>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"mingo@kernel.org" <mingo@kernel.org>,
"Anvin, H Peter" <h.peter.anvin@intel.com>
Subject: Re: [PATCH 4/4] perf/x86/cqm: Support cqm/mbm only for perf events
Date: Mon, 25 Apr 2016 22:08:26 +0200 [thread overview]
Message-ID: <20160425200826.GO3448@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <3908561D78D1C84285E8C5FCA982C28F3A0B21FF@ORSMSX114.amr.corp.intel.com>
On Mon, Apr 25, 2016 at 04:23:58PM +0000, Luck, Tony wrote:
> >> Hence removing support for the parts which are broken rather than
> >> pretending to support it and giving incorrect data.
> >
> > Uh what, how about attempt to fix it?
>
> No hope to do that by 4.6 release ... so I suggested to Vikas that it would be better to disable
> the feature now so users wouldn't be confused by the random numbers that they'll see if
> they try to do this.
Of course, that might have been useful information to have in the
changelog to begin with.
But seeing that its been broken for a number of releases I don't see how
this is urgent to stuff in this one.
I'd instead be more inclined to hurry with Stephanes patches..
prev parent reply other threads:[~2016-04-25 20:08 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-23 0:27 [PATCH V1 0/4] Urgent fixes for Intel CQM/MBM counting Vikas Shivappa
2016-04-23 0:27 ` [PATCH 1/4] perf/x86/cqm,mbm: Store cqm,mbm count for all events when RMID is recycled Vikas Shivappa
2016-04-25 9:20 ` Peter Zijlstra
2016-04-25 16:26 ` Vikas Shivappa
2016-04-23 0:27 ` [PATCH 2/4] perf/x86/mbm: Store bytes counted for mbm during recycle Vikas Shivappa
2016-04-25 9:13 ` Peter Zijlstra
2016-04-25 18:04 ` Vikas Shivappa
2016-04-25 20:02 ` Peter Zijlstra
2016-04-25 21:12 ` Vikas Shivappa
2016-05-03 7:46 ` Peter Zijlstra
2016-05-04 0:00 ` Vikas Shivappa
2016-04-23 0:27 ` [PATCH 3/4] perf/x86/mbm: Fix mbm counting when RMIDs are reused Vikas Shivappa
2016-04-25 9:16 ` Peter Zijlstra
2016-04-25 16:44 ` Vikas Shivappa
2016-04-25 20:05 ` Peter Zijlstra
2016-04-25 21:43 ` Vikas Shivappa
2016-04-25 21:49 ` Vikas Shivappa
2016-04-23 0:27 ` [PATCH 4/4] perf/x86/cqm: Support cqm/mbm only for perf events Vikas Shivappa
2016-04-25 9:18 ` Peter Zijlstra
2016-04-25 16:23 ` Luck, Tony
2016-04-25 20:08 ` Peter Zijlstra [this message]
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