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Message-ID: <1d5a74b2-bab4-4876-5fa1-2c06e83b55bc@amd.com>
Date: Fri, 11 Aug 2023 13:19:48 +0530
From: Bharata B Rao <bharata@....com>
To: "Huang, Ying" <ying.huang@...el.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
Alistair Popple <apopple@...dia.com>, linux-mm@...ck.org,
linux-kernel@...r.kernel.org, linux-cxl@...r.kernel.org,
nvdimm@...ts.linux.dev, linux-acpi@...r.kernel.org,
"Aneesh Kumar K . V" <aneesh.kumar@...ux.ibm.com>,
Wei Xu <weixugc@...gle.com>,
Dan Williams <dan.j.williams@...el.com>,
Dave Hansen <dave.hansen@...el.com>,
Davidlohr Bueso <dave@...olabs.net>,
Johannes Weiner <hannes@...xchg.org>,
Jonathan Cameron <Jonathan.Cameron@...wei.com>,
Michal Hocko <mhocko@...nel.org>,
Yang Shi <shy828301@...il.com>,
Rafael J Wysocki <rafael.j.wysocki@...el.com>
Subject: Re: [PATCH RESEND 0/4] memory tiering: calculate abstract distance
based on ACPI HMAT
On 11-Aug-23 11:56 AM, Huang, Ying wrote:
> Hi, Rao,
>
> Bharata B Rao <bharata@....com> writes:
>
>> On 24-Jul-23 11:28 PM, Andrew Morton wrote:
>>> On Fri, 21 Jul 2023 14:15:31 +1000 Alistair Popple <apopple@...dia.com> wrote:
>>>
>>>> Thanks for this Huang, I had been hoping to take a look at it this week
>>>> but have run out of time. I'm keen to do some testing with it as well.
>>>
>>> Thanks. I'll queue this in mm-unstable for some testing. Detailed
>>> review and testing would be appreciated.
>>
>> I gave this series a try on a 2P system with 2 CXL cards. I don't trust the
>> bandwidth and latency numbers reported by HMAT here, but FWIW, this patchset
>> puts the CXL nodes on a lower tier than DRAM nodes.
>
> Thank you very much!
>
> Can I add your "Tested-by" for the series?
Yes if the above test qualifies for it, please go ahead.
Regards,
Bharata.
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