From: Reinette Chatre <reinette.chatre@intel.com>
To: <babu.moger@amd.com>, <corbet@lwn.net>, <fenghua.yu@intel.com>,
<tglx@linutronix.de>, <mingo@redhat.com>, <bp@alien8.de>,
<dave.hansen@linux.intel.com>
Cc: <x86@kernel.org>, <hpa@zytor.com>, <paulmck@kernel.org>,
<rdunlap@infradead.org>, <tj@kernel.org>, <peterz@infradead.org>,
<yanjiewtw@gmail.com>, <kim.phillips@amd.com>,
<lukas.bulwahn@gmail.com>, <seanjc@google.com>,
<jmattson@google.com>, <leitao@debian.org>, <jpoimboe@kernel.org>,
<rick.p.edgecombe@intel.com>, <kirill.shutemov@linux.intel.com>,
<jithu.joseph@intel.com>, <kai.huang@intel.com>,
<kan.liang@linux.intel.com>, <daniel.sneddon@linux.intel.com>,
<pbonzini@redhat.com>, <sandipan.das@amd.com>,
<ilpo.jarvinen@linux.intel.com>, <peternewman@google.com>,
<maciej.wieczor-retman@intel.com>, <linux-doc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <eranian@google.com>,
<james.morse@arm.com>
Subject: Re: [PATCH v7 20/24] x86/resctrl: Introduce the interface to switch between monitor modes
Date: Thu, 26 Sep 2024 18:51:18 -0700 [thread overview]
Message-ID: <0812e4ff-d8d9-4356-bf20-7d20170e9813@intel.com> (raw)
In-Reply-To: <773d02ba-64d0-4c03-968e-f303ffefc4dd@amd.com>
Hi Babu,
On 9/26/24 12:39 PM, Moger, Babu wrote:
> On 9/19/24 12:38, Reinette Chatre wrote:
>> On 9/4/24 3:21 PM, Babu Moger wrote:
>>> + ::
>>> +
>>> + # echo "default" > /sys/fs/resctrl/info/L3_MON/mbm_assign_mode
>>> +
>>> + The MBM event counters will reset when mbm_assign_mode is changed. Moving to
>>
>> "will reset" -> "may reset"? Please also be clear on what is meant with "MBM event counter".
>
> It "will reset".
>
I understand that this is true for the ABMC implementation. My goal with making this vague is
to not have this reset set in stone if some other implementation behaves differently.
>> Note that "counter" has a very specific meaning in this work and after considering that
>> it is not clear if "MBM event counter will reset" means that the counters are no longer
>> assigned or if it means that the counts associated with events will be reset.
>
> How about
>
> "The MBM event counters(mbm_total_bytes and mbm_local_bytes) associated
> with the event will reset when mbm_assign_mode is changed."
In the docs "mbm_total_bytes" and "mbm_local_bytes" are termed "events" ... maybe
"The MBM events (mbm_total_bytes and/or mbm_local_bytes) associated
counters may reset when mbm_assign_mode is changed."?
Reinette
next prev parent reply other threads:[~2024-09-27 1:51 UTC|newest]
Thread overview: 96+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-04 22:21 [PATCH v7 00/24] x86/resctrl : Support AMD Assignable Bandwidth Monitoring Counters (ABMC) Babu Moger
2024-09-04 22:21 ` [PATCH v7 01/24] x86/cpufeatures: Add support for " Babu Moger
2024-09-04 22:21 ` [PATCH v7 02/24] x86/resctrl: Add ABMC feature in the command line options Babu Moger
2024-09-19 16:00 ` Reinette Chatre
2024-09-23 14:21 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 03/24] x86/resctrl: Consolidate monitoring related data from rdt_resource Babu Moger
2024-09-19 16:03 ` Reinette Chatre
2024-09-04 22:21 ` [PATCH v7 04/24] x86/resctrl: Detect Assignable Bandwidth Monitoring feature details Babu Moger
2024-09-19 16:16 ` Reinette Chatre
2024-09-23 14:37 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 05/24] x86/resctrl: Introduce resctrl_file_fflags_init() to initialize fflags Babu Moger
2024-09-04 22:21 ` [PATCH v7 06/24] x86/resctrl: Add support to enable/disable AMD ABMC feature Babu Moger
2024-09-19 16:22 ` Reinette Chatre
2024-09-23 15:30 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 07/24] x86/resctrl: Introduce the interface to display monitor mode Babu Moger
2024-09-19 16:28 ` Reinette Chatre
2024-09-23 16:01 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 08/24] x86/resctrl: Introduce interface to display number of monitoring counters Babu Moger
2024-09-19 16:32 ` Reinette Chatre
2024-09-23 16:23 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 09/24] x86/resctrl: Introduce bitmap mbm_cntr_free_map to track assignable counters Babu Moger
2024-09-19 16:42 ` Reinette Chatre
2024-09-23 18:33 ` Moger, Babu
2024-09-23 22:28 ` Reinette Chatre
2024-09-24 13:58 ` Moger, Babu
2024-09-24 16:25 ` Peter Newman
2024-09-24 17:01 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 10/24] x86/resctrl: Introduce mbm_total_cfg and mbm_local_cfg in struct rdt_hw_mon_domain Babu Moger
2024-09-19 16:51 ` Reinette Chatre
2024-09-23 18:43 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 11/24] x86/resctrl: Remove MSR reading of event configuration value Babu Moger
2024-09-19 16:55 ` Reinette Chatre
2024-09-23 18:45 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 12/24] x86/resctrl: Introduce mbm_cntr_map to track counters at domain Babu Moger
2024-09-04 22:21 ` [PATCH v7 13/24] x86/resctrl: Add data structures and definitions for ABMC assignment Babu Moger
2024-09-19 17:08 ` Reinette Chatre
2024-09-23 20:21 ` Moger, Babu
2024-09-23 22:30 ` Reinette Chatre
2024-09-24 14:51 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 14/24] x86/resctrl: Introduce cntr_id in mongroup for assignments Babu Moger
2024-09-04 22:21 ` [PATCH v7 15/24] x86/resctrl: Implement resctrl_arch_assign_cntr to assign a counter with ABMC Babu Moger
2024-09-19 17:13 ` Reinette Chatre
2024-09-23 21:03 ` Moger, Babu
2024-09-23 22:29 ` Reinette Chatre
2024-09-24 14:07 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 16/24] x86/resctrl: Add the interface to assign/update counter assignment Babu Moger
2024-09-19 17:20 ` Reinette Chatre
2024-09-26 16:28 ` Moger, Babu
2024-09-26 16:46 ` Reinette Chatre
2024-09-26 16:59 ` Moger, Babu
2024-09-27 1:48 ` Reinette Chatre
2024-09-04 22:21 ` [PATCH v7 17/24] x86/resctrl: Add the interface to unassign a MBM counter Babu Moger
2024-09-19 17:26 ` Reinette Chatre
2024-09-26 16:56 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 18/24] x86/resctrl: Auto Assign/unassign counters when mbm_cntr_assign is enabled Babu Moger
2024-09-19 17:29 ` Reinette Chatre
2024-09-26 18:48 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 19/24] x86/resctrl: Report "Unassigned" for MBM events in mbm_cntr_assign mode Babu Moger
2024-09-19 17:31 ` Reinette Chatre
2024-09-26 19:16 ` Moger, Babu
2024-09-27 1:50 ` Reinette Chatre
2024-09-27 13:40 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 20/24] x86/resctrl: Introduce the interface to switch between monitor modes Babu Moger
2024-09-19 17:38 ` Reinette Chatre
2024-09-26 19:39 ` Moger, Babu
2024-09-27 1:51 ` Reinette Chatre [this message]
2024-09-27 13:26 ` Moger, Babu
2024-09-27 15:07 ` Reinette Chatre
2024-09-04 22:21 ` [PATCH v7 21/24] x86/resctrl: Configure mbm_cntr_assign mode if supported Babu Moger
2024-09-19 17:43 ` Reinette Chatre
2024-09-27 14:37 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 22/24] x86/resctrl: Update assignments on event configuration changes Babu Moger
2024-09-19 17:45 ` Reinette Chatre
2024-09-27 16:22 ` Moger, Babu
2024-10-02 18:20 ` Reinette Chatre
2024-10-04 0:51 ` Moger, Babu
2024-10-04 2:17 ` Reinette Chatre
2024-10-04 15:02 ` Moger, Babu
2024-10-04 15:53 ` Reinette Chatre
2024-10-08 0:01 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 23/24] x86/resctrl: Introduce interface to list assignment states of all the groups Babu Moger
2024-09-19 17:53 ` Reinette Chatre
2024-09-27 17:06 ` Moger, Babu
2024-09-04 22:21 ` [PATCH v7 24/24] x86/resctrl: Introduce interface to modify assignment states of " Babu Moger
2024-09-19 17:59 ` Reinette Chatre
2024-09-27 17:47 ` Moger, Babu
2024-10-02 18:19 ` Reinette Chatre
2024-10-04 1:11 ` Moger, Babu
2024-10-04 2:17 ` Reinette Chatre
2024-10-04 16:38 ` Moger, Babu
2024-10-04 16:52 ` Reinette Chatre
2024-10-04 19:36 ` Moger, Babu
2024-10-04 21:09 ` Reinette Chatre
2024-10-05 0:23 ` Moger, Babu
2024-09-19 18:00 ` [PATCH v7 00/24] x86/resctrl : Support AMD Assignable Bandwidth Monitoring Counters (ABMC) Reinette Chatre
2024-09-27 18:11 ` Moger, Babu
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