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From: Stephane Eranian <eranian@google.com>
To: Andi Kleen <ak@linux.intel.com>
Cc: "Liang, Kan" <kan.liang@intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	"tglx@linutronix.de" <tglx@linutronix.de>,
	"mingo@redhat.com" <mingo@redhat.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"acme@kernel.org" <acme@kernel.org>
Subject: Re: [PATCH V5 4/8] perf/x86/intel/uncore: add new data structures for free running counters
Date: Fri, 19 Jan 2018 12:51:08 -0800	[thread overview]
Message-ID: <CABPqkBSLXeqdQUcxqbo5mkBU1=V6htLXwA9HYXQRrwGD17KgZw@mail.gmail.com> (raw)
In-Reply-To: <CABPqkBTZH8eF6aMm0SD8YB2F6YM2BRaZKQymAKtwD-peAae28Q@mail.gmail.com>

On Fri, Jan 19, 2018 at 12:50 PM, Stephane Eranian <eranian@google.com> wrote:
> On Fri, Jan 19, 2018 at 12:24 PM, Andi Kleen <ak@linux.intel.com> wrote:
>>> Oh, think a bit more.
>>> I think we cannot do the same thing as we did for CPU PMU's fixed counters.
>>>
>>> The counters here are free running counters. They cannot be start/stop.
>>
>> Yes free running counter have completely different semantics. They
>> need a separate event code.
>>
> Are you saying, you can be shared with no multiplexing?
>
Obviously not you, but the counters ;-)

>> -Andi

  reply	other threads:[~2018-01-19 20:51 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-15 18:57 [PATCH V5 1/8] perf/x86/intel/uncore: customized event_read for client IMC uncore kan.liang
2018-01-15 18:57 ` [PATCH V5 2/8] perf/x86/intel/uncore: correct fixed counter index check for NHM kan.liang
2018-01-15 18:57 ` [PATCH V5 3/8] perf/x86/intel/uncore: correct fixed counter index check in generic code kan.liang
2018-01-15 18:57 ` [PATCH V5 4/8] perf/x86/intel/uncore: add new data structures for free running counters kan.liang
2018-01-18 13:32   ` Peter Zijlstra
2018-01-18 17:43     ` Liang, Kan
2018-01-19 13:07       ` Peter Zijlstra
2018-01-19 15:15         ` Liang, Kan
2018-01-19 17:19           ` Peter Zijlstra
2018-01-19 17:34             ` Stephane Eranian
2018-01-19 17:53             ` Liang, Kan
2018-01-19 17:55               ` Stephane Eranian
2018-01-19 18:00                 ` Liang, Kan
2018-01-19 20:18                   ` Stephane Eranian
2018-01-19 20:24                   ` Andi Kleen
2018-01-19 20:50                     ` Stephane Eranian
2018-01-19 20:51                       ` Stephane Eranian [this message]
2018-01-20  1:24                         ` Andi Kleen
2018-01-19 21:33                     ` Peter Zijlstra
2018-01-23 22:00                       ` Liang, Kan
2018-01-24 10:17                         ` Peter Zijlstra
2018-01-24 15:46                           ` Liang, Kan
2018-01-15 18:57 ` [PATCH V5 5/8] perf/x86/intel/uncore: add infrastructure for free running counter kan.liang
2018-01-15 18:57 ` [PATCH V5 6/8] perf/x86/intel/uncore: SKX support for IIO free running counters kan.liang
2018-01-15 18:57 ` [PATCH V5 7/8] perf/x86/intel/uncore: expose uncore_pmu_event functions kan.liang
2018-01-15 18:57 ` [PATCH V5 8/8] perf/x86/intel/uncore: clean up client IMC uncore kan.liang
2018-01-18  9:36 ` [PATCH V5 1/8] perf/x86/intel/uncore: customized event_read for " Thomas Gleixner

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