linux-kernel - Re: [PATCH v2 0/4] selftests/resctrl: Enable MBM and MBA tests on AMD

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Date: Thu, 30 May 2024 11:07:48 -0500
From: "Moger, Babu" <babu.moger@....com>
To: Reinette Chatre <reinette.chatre@...el.com>, fenghua.yu@...el.com,
 shuah@...nel.org
Cc: linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
 ilpo.jarvinen@...ux.intel.com, maciej.wieczor-retman@...el.com,
 peternewman@...gle.com, eranian@...gle.com
Subject: Re: [PATCH v2 0/4] selftests/resctrl: Enable MBM and MBA tests on AMD

Hi Reinette,

On 5/9/24 16:10, Reinette Chatre wrote:
> 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.

Yes. Got it.
https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git/
-- 
Thanks
Babu Moger