From: Reinette Chatre <reinette.chatre@intel.com>
To: Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
"Peter Newman" <peternewman@google.com>,
Jonathan Corbet <corbet@lwn.net>, <x86@kernel.org>
Cc: James Morse <james.morse@arm.com>,
Jamie Iles <quic_jiles@quicinc.com>,
Babu Moger <babu.moger@amd.com>,
Randy Dunlap <rdunlap@infradead.org>,
"Shaopeng Tan (Fujitsu)" <tan.shaopeng@fujitsu.com>,
<linux-kernel@vger.kernel.org>, <linux-doc@vger.kernel.org>,
<patches@lists.linux.dev>
Subject: Re: [PATCH v10 5/8] x86/resctrl: Make mba_sc use total bandwidth if local is not supported
Date: Tue, 26 Nov 2024 10:37:01 -0800 [thread overview]
Message-ID: <b3c59250-d648-4898-b632-fe7441f8bf90@intel.com> (raw)
In-Reply-To: <20241122235832.27498-6-tony.luck@intel.com>
Hi Tony,
On 11/22/24 3:58 PM, Tony Luck wrote:
> The default input measurement to the mba_sc feedback loop for
> memory bandwidth control when the user mounts with the "mba_MBps"
> option is the local bandwidth event.
>
> But some systems may not support a local bandwidth event.
>
> When local bandwidth event is not supported, check for support
> of total bandwidth and use that instead.
>
> Relax the mount option check to allow use of the "mba_MBps"
> option for systems when only total bandwidth monitoring is
> supported. Also update the error message.
>
> Signed-off-by: Tony Luck <tony.luck@intel.com>
> ---
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reinette
next prev parent reply other threads:[~2024-11-26 18:37 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-22 23:58 [PATCH v10 0/8] x86/resctrl: mba_MBps enhancement Tony Luck
2024-11-22 23:58 ` [PATCH v10 1/8] x86/resctrl: Introduce resctrl_file_fflags_init() to initialize fflags Tony Luck
2024-11-22 23:58 ` [PATCH v10 2/8] x86/resctrl: Prepare for per-CTRL_MON group mba_MBps control Tony Luck
2024-11-26 18:30 ` Reinette Chatre
2024-11-22 23:58 ` [PATCH v10 3/8] x86/resctrl: Modify update_mba_bw() to use per CTRL_MON group event Tony Luck
2024-11-26 18:33 ` Reinette Chatre
2024-11-22 23:58 ` [PATCH v10 4/8] x86/resctrl: Compute memory bandwidth for all supported events Tony Luck
2024-11-26 18:35 ` Reinette Chatre
2024-11-22 23:58 ` [PATCH v10 5/8] x86/resctrl: Make mba_sc use total bandwidth if local is not supported Tony Luck
2024-11-26 18:37 ` Reinette Chatre [this message]
2024-11-22 23:58 ` [PATCH v10 6/8] x86/resctrl: Add "mba_MBps_event" file to CTRL_MON directories Tony Luck
2024-11-26 18:38 ` Reinette Chatre
2024-11-22 23:58 ` [PATCH v10 7/8] x86/resctrl: Add write option to "mba_MBps_event" file Tony Luck
2024-11-26 18:41 ` Reinette Chatre
2024-11-22 23:58 ` [PATCH v10 8/8] x86/resctrl: Document the new " Tony Luck
2024-11-26 18:43 ` Reinette Chatre
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