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From: Greg KH <gregkh@linux-foundation.org>
To: Andi Kleen <ak@linux.intel.com>
Cc: roman.sudarikov@linux.intel.com, peterz@infradead.org,
	mingo@redhat.com, acme@kernel.org, mark.rutland@arm.com,
	alexander.shishkin@linux.intel.com, jolsa@redhat.com,
	namhyung@kernel.org, linux-kernel@vger.kernel.org,
	eranian@google.com, bgregg@netflix.com,
	kan.liang@linux.intel.com, alexander.antonov@intel.com
Subject: Re: [PATCH v4 2/2] perf x86: Exposing an Uncore unit to PMON for Intel Xeon® server platform
Date: Sat, 18 Jan 2020 00:03:56 +0100	[thread overview]
Message-ID: <20200117230356.GA2093716@kroah.com> (raw)
In-Reply-To: <20200117191220.GN302770@tassilo.jf.intel.com>

On Fri, Jan 17, 2020 at 11:12:20AM -0800, Andi Kleen wrote:
> > > pmon0-3: list of pci busses indexed by die
> > > 
> > > To be honest the approach doesn't seem unreasonable to me. It's similar
> > > e.g. how we express lists of cpus or nodes in sysfs today.
> 
> <snipped repeated form letter non answer to question>
> 
> Roman, 
> 
> I suppose you'll need something like
> 
> /sys/device/system/dieXXX/pci-pmon<0-3>/bus 
> 
> and bus could be a symlink to the pci bus directory.

Why do you need to link to the pci bus directory?

> The whole thing will be ugly and complicated and slow and difficult
> to parse, but it will presumably follow Greg's rules.

Who needs to parse this?  What tool will do it and for what?

greg k-h

  reply	other threads:[~2020-01-17 23:04 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-17 13:37 [PATCH v4 0/2] perf x86: Exposing IO stack to IO PMON mapping through sysfs roman.sudarikov
2020-01-17 13:37 ` [PATCH v4 1/2] perf x86: Infrastructure for exposing an Uncore unit to PMON mapping roman.sudarikov
2020-01-17 14:16   ` Greg KH
2020-01-17 13:37 ` [PATCH v4 2/2] perf x86: Exposing an Uncore unit to PMON for Intel Xeon® server platform roman.sudarikov
2020-01-17 14:19   ` Greg KH
2020-01-17 16:23     ` Andi Kleen
2020-01-17 16:54       ` Greg KH
2020-01-17 17:27         ` Andi Kleen
2020-01-17 18:42           ` Greg KH
2020-01-17 19:12             ` Andi Kleen
2020-01-17 23:03               ` Greg KH [this message]
2020-01-17 23:21                 ` Andi Kleen
2020-01-21 16:15         ` Sudarikov, Roman
2020-01-21 17:15           ` Greg KH
2020-01-28 14:55             ` Sudarikov, Roman
2020-01-28 20:19               ` Liang, Kan
2020-01-17 14:14 ` [PATCH v4 0/2] perf x86: Exposing IO stack to IO PMON mapping through sysfs Greg KH

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