From: Ben Horgan <ben.horgan@arm.com>
To: Gavin Shan <gshan@redhat.com>
Cc: amitsinght@marvell.com, baisheng.gao@unisoc.com,
baolin.wang@linux.alibaba.com, carl@os.amperecomputing.com,
dave.martin@arm.com, david@kernel.org, dfustini@baylibre.com,
fenghuay@nvidia.com, james.morse@arm.com, jic23@kernel.org,
kobak@nvidia.com, lcherian@marvell.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, peternewman@google.com,
punit.agrawal@oss.qualcomm.com, quic_jiles@quicinc.com,
reinette.chatre@intel.com, rohit.mathew@arm.com,
scott@os.amperecomputing.com, sdonthineni@nvidia.com,
tan.shaopeng@fujitsu.com, xhao@linux.alibaba.com,
zengheng4@huawei.com, x86@kernel.org, leitao@kernel.org,
kas@kernel.org, puranjay@kernel.org, usama.arif@linux.dev,
kernel-team@meta.com
Subject: Re: [PATCH v5 0/5] arm_mpam: resctrl: Counter Assignment (ABMC)
Date: Wed, 29 Jul 2026 11:40:26 +0100 [thread overview]
Message-ID: <d4ce9d65-cd1f-4cfe-99a9-a7ad92ee0eec@arm.com> (raw)
In-Reply-To: <8e36f71d-598b-45bf-a3ea-6d44ff728877@redhat.com>
Hi Gavin,
On 7/15/26 06:44, Gavin Shan wrote:
> On 7/8/26 2:24 AM, Ben Horgan wrote:
>> Version 5 of this series addresses a few review comments but is pretty
>> similar to v4. The precursors in x86/cache have been merged so there is no
>> longer a need for this to go through there. It's likely easiest if this
>> goes through arm64.
>>
>> This series adds support for memory bandwidth monitoring. Counter assignment
>> will be used for all platforms with memory bandwidth monitors rather than just
>> those with insufficient counters as originally proposed.
>
> The tests on NVidia's grace-hopper machine looks good: (a) no error or warning is seen
> from the kunit-tests; (b) L3 cache partitioning and MBW (soft) limiting aren't broken,
> still working to me; (c) The counter 'mbm_total_bytes' can be assigned to newly created
> group and it gets increased when workload runs in the group.
>
> Tested-by: Gavin Shan <gshan@redhat.com>
Thanks for the testing and reviews.
Ben
>
> Thanks,
> Gavin
>
prev parent reply other threads:[~2026-07-29 10:40 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-07 16:24 [PATCH v5 0/5] arm_mpam: resctrl: Counter Assignment (ABMC) Ben Horgan
2026-07-07 16:24 ` [PATCH v5 1/5] arm_mpam: resctrl: Pick classes for use as MBM counters Ben Horgan
2026-07-15 10:12 ` Gavin Shan
2026-07-07 16:24 ` [PATCH v5 2/5] arm_mpam: resctrl: Pre-allocate assignable monitors Ben Horgan
2026-07-15 10:22 ` Gavin Shan
2026-07-07 16:24 ` [PATCH v5 3/5] arm_mpam: resctrl: Add resctrl_arch_config_cntr() for ABMC use Ben Horgan
2026-07-15 10:22 ` Gavin Shan
2026-07-07 16:24 ` [PATCH v5 4/5] arm_mpam: resctrl: Add resctrl_arch_cntr_read() & resctrl_arch_reset_cntr() Ben Horgan
2026-07-15 10:23 ` Gavin Shan
2026-07-07 16:24 ` [PATCH v5 5/5] arm64: mpam: Add memory bandwidth usage (MBWU) documentation Ben Horgan
2026-07-09 16:43 ` Fenghua Yu
2026-07-15 10:23 ` Gavin Shan
2026-08-11 15:55 ` Reinette Chatre
2026-07-15 5:44 ` [PATCH v5 0/5] arm_mpam: resctrl: Counter Assignment (ABMC) Gavin Shan
2026-07-29 10:40 ` Ben Horgan [this message]
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