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Message-ID: <a1eaca6a-ed3d-4bc2-a5e8-5c43bbef49dd@intel.com>
Date: Thu, 9 May 2024 14:10:09 -0700
User-Agent: Mozilla Thunderbird
Subject: Re: [PATCH v2 0/4] selftests/resctrl: Enable MBM and MBA tests on AMD
To: Babu Moger <babu.moger@amd.com>, <fenghua.yu@intel.com>,
	<shuah@kernel.org>
CC: <linux-kernel@vger.kernel.org>, <linux-kselftest@vger.kernel.org>,
	<ilpo.jarvinen@linux.intel.com>, <maciej.wieczor-retman@intel.com>,
	<peternewman@google.com>, <eranian@google.com>
References: <cover.1708637563.git.babu.moger@amd.com>
 <cover.1714073751.git.babu.moger@amd.com>
Content-Language: en-US
From: Reinette Chatre <reinette.chatre@intel.com>
In-Reply-To: <cover.1714073751.git.babu.moger@amd.com>
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Hi Babu,

On 4/25/2024 1:16 PM, Babu Moger wrote:
> 
> The MBM (Memory Bandwidth Monitoring) and MBA (Memory Bandwidth Allocation)
> features are not enabled for AMD systems. The reason was lack of perf
> counters to compare the resctrl test results.
> 
> Starting with the commit
> 25e56847821f ("perf/x86/amd/uncore: Add memory controller support"), AMD
> now supports the UMC (Unified Memory Controller) perf events. These events
> can be used to compare the test results.
> 
> This series adds the support to detect the UMC events and enable MBM/MBA
> tests for AMD systems.
> 
> v2: Changes.
>     a. Rebased on top of tip/master (Apr 25, 2024)

Please note that resctrl selftest changes flow upstream via the kselftest
repo. The latest resctrl selftest changes can be found on the "next" branch
there.

Reinette