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From: "Moger, Babu" <Babu.Moger@amd.com>
To: Reinette Chatre <reinette.chatre@intel.com>,
	"corbet@lwn.net" <corbet@lwn.net>,
	"tglx@linutronix.de" <tglx@linutronix.de>,
	"mingo@redhat.com" <mingo@redhat.com>,
	"bp@alien8.de" <bp@alien8.de>
Cc: "fenghua.yu@intel.com" <fenghua.yu@intel.com>,
	"dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
	"x86@kernel.org" <x86@kernel.org>,
	"hpa@zytor.com" <hpa@zytor.com>,
	"paulmck@kernel.org" <paulmck@kernel.org>,
	"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
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	"Das1, Sandipan" <Sandipan.Das@amd.com>,
	"tony.luck@intel.com" <tony.luck@intel.com>,
	"james.morse@arm.com" <james.morse@arm.com>,
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	"eranian@google.com" <eranian@google.com>
Subject: RE: [PATCH v8 13/13] Documentation/x86: Update resctrl.rst for new features
Date: Wed, 23 Nov 2022 23:02:17 +0000	[thread overview]
Message-ID: <MW3PR12MB4553E324788E568D030C2949950C9@MW3PR12MB4553.namprd12.prod.outlook.com> (raw)
In-Reply-To: <d757b376-3e36-da95-b69c-21390a0c92f5@intel.com>

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[AMD Official Use Only - General]

Hi Reinette,

> -----Original Message-----
> From: Reinette Chatre <reinette.chatre@intel.com>
> Sent: Tuesday, November 22, 2022 6:26 PM
> To: Moger, Babu <Babu.Moger@amd.com>; corbet@lwn.net;
> tglx@linutronix.de; mingo@redhat.com; bp@alien8.de
> Cc: fenghua.yu@intel.com; dave.hansen@linux.intel.com; x86@kernel.org;
> hpa@zytor.com; paulmck@kernel.org; akpm@linux-foundation.org;
> quic_neeraju@quicinc.com; rdunlap@infradead.org;
> damien.lemoal@opensource.wdc.com; songmuchun@bytedance.com;
> peterz@infradead.org; jpoimboe@kernel.org; pbonzini@redhat.com;
> chang.seok.bae@intel.com; pawan.kumar.gupta@linux.intel.com;
> jmattson@google.com; daniel.sneddon@linux.intel.com; Das1, Sandipan
> <Sandipan.Das@amd.com>; tony.luck@intel.com; james.morse@arm.com;
> linux-doc@vger.kernel.org; linux-kernel@vger.kernel.org;
> bagasdotme@gmail.com; eranian@google.com
> Subject: Re: [PATCH v8 13/13] Documentation/x86: Update resctrl.rst for new
> features
> 
> Hi Babu,
> 
> On 11/4/2022 1:01 PM, Babu Moger wrote:
> ...
> 
> > @@ -464,6 +539,26 @@ Memory bandwidth domain is L3 cache.
> >
> >  	MB:<cache_id0>=bw_MBps0;<cache_id1>=bw_MBps1;...
> >
> > +Slow Memory Bandwidth Allocation (SMBA)
> > +---------------------------------------
> > +AMD hardware support Slow Memory Bandwidth Allocation (SMBA) feature.
> 
> How about
> AMD hardware supports the Slow Memory Bandwidth Allocation (SMBA)
> feature.
> or
> AMD hardware supports Slow Memory Bandwidth Allocation (SMBA).

Sure.
> 
> > +Currently, CXL.memory is the only supported "slow" memory device.
> 
> What does "Currently" mean here? If there is a plan for changes, could that be
> shared? Otherwise maybe just remove it: "CXL.memory is the only supported
> "slow" memory device."

There is no change of plan. I will remove "Currently"

> 
> > +With the support of SMBA, the hardware enables bandwidth allocation
> > +on the slow memory devices. If there are multiple such devices in the
> > +system, the throttling logic groups all the slow sources together and
> > +applies the limit on them as a whole.
> > +
> > +The presence of SMBA (with CXL.memory) is independent of slow memory
> > +devices presence. If there is no such devices on the system, then
> 
> Maybe "is no such device" or "are no such devices"?

It should be "If there are no such devices".   Will correct it.

> 
> > +setting the configuring SMBA will have no impact on the performance
> 
> "setting the configuring SMBA" is hard to parse. How about just "configuring
> SMBA"?

Sure.
Thanks
Babu

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  reply	other threads:[~2022-11-23 23:02 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-04 19:59 [PATCH v8 00/13] Support for AMD QoS new features Babu Moger
2022-11-04 19:59 ` [PATCH v8 01/13] x86/cpufeatures: Add Slow Memory Bandwidth Allocation feature flag Babu Moger
2022-11-23 18:21   ` Yu, Fenghua
2022-11-23 23:09     ` Moger, Babu
2022-11-04 20:00 ` [PATCH v8 02/13] x86/resctrl: Add a new resource type RDT_RESOURCE_SMBA Babu Moger
2022-11-23  0:04   ` Reinette Chatre
2022-11-23 15:13     ` Moger, Babu
2022-11-04 20:00 ` [PATCH v8 03/13] x86/cpufeatures: Add Bandwidth Monitoring Event Configuration feature flag Babu Moger
2022-11-23  0:09   ` Reinette Chatre
2022-11-23 15:16     ` Moger, Babu
2022-11-23 18:17   ` Yu, Fenghua
2022-11-23 23:06     ` Moger, Babu
2022-11-04 20:00 ` [PATCH v8 04/13] x86/resctrl: Include new features in command line options Babu Moger
2022-11-23 18:26   ` Yu, Fenghua
2022-11-23 23:10     ` Moger, Babu
2022-11-04 20:00 ` [PATCH v8 05/13] x86/resctrl: Detect and configure Slow Memory Bandwidth Allocation Babu Moger
2022-11-23  0:12   ` Reinette Chatre
2022-11-23 15:17     ` Moger, Babu
2022-11-30 18:43     ` Moger, Babu
2022-11-30 20:07       ` Reinette Chatre
2022-11-30 20:40         ` Moger, Babu
2022-12-01  0:35           ` Reinette Chatre
2022-12-01 13:56             ` Moger, Babu
2022-11-04 20:00 ` [PATCH v8 06/13] x86/resctrl: Remove the init attribute for rdt_cpu_has() Babu Moger
2022-11-23  0:13   ` Reinette Chatre
2022-11-23 17:48     ` Moger, Babu
2022-11-04 20:00 ` [PATCH v8 07/13] x86/resctrl: Introduce data structure to support monitor configuration Babu Moger
2022-11-23  0:14   ` Reinette Chatre
2022-11-23 18:23     ` Moger, Babu
2022-11-23 19:05       ` Reinette Chatre
2022-11-23 21:46         ` Moger, Babu
2022-11-04 20:00 ` [PATCH v8 08/13] x86/resctrl: Add sysfs interface to read mbm_total_bytes_config Babu Moger
2022-11-23  0:19   ` Reinette Chatre
2022-11-23 18:35     ` Moger, Babu
2022-11-23 22:27       ` Reinette Chatre
2022-11-23 22:55         ` Moger, Babu
2022-11-04 20:01 ` [PATCH v8 09/13] x86/resctrl: Add sysfs interface to read mbm_local_bytes_config Babu Moger
2022-11-04 20:01 ` [PATCH v8 10/13] x86/resctrl: Add sysfs interface to write mbm_total_bytes_config Babu Moger
2022-11-07 10:21   ` Peter Newman
2022-11-07 18:50     ` Moger, Babu
2022-11-07 19:00     ` Moger, Babu
2022-11-22 23:43       ` Reinette Chatre
2022-11-23 21:44         ` Moger, Babu
2022-11-23 22:22           ` Reinette Chatre
2022-11-28 16:01             ` Moger, Babu
2022-11-23  0:22   ` Reinette Chatre
2022-11-23 22:44     ` Moger, Babu
2022-12-07 17:20   ` James Morse
2022-12-07 17:24     ` James Morse
2022-12-08  0:02     ` Moger, Babu
2022-12-13 17:55       ` James Morse
2022-12-13 23:46         ` Moger, Babu
2022-11-04 20:01 ` [PATCH v8 11/13] x86/resctrl: Add sysfs interface to write mbm_local_bytes_config Babu Moger
2022-11-04 20:01 ` [PATCH v8 12/13] x86/resctrl: Replace smp_call_function_many() with on_each_cpu_mask() Babu Moger
2022-11-04 20:01 ` [PATCH v8 13/13] Documentation/x86: Update resctrl.rst for new features Babu Moger
2022-11-23  0:26   ` Reinette Chatre
2022-11-23 23:02     ` Moger, Babu [this message]
2022-11-15 20:50 ` [PATCH v8 00/13] Support for AMD QoS " Moger, Babu
2022-11-15 21:07   ` Reinette Chatre
2022-11-15 21:34     ` Moger, Babu

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