From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
To: Huang Ying <ying.huang@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>,
Dave Jiang <dave.jiang@intel.com>, <linux-cxl@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
Alison Schofield <alison.schofield@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
Bharata B Rao <bharata@amd.com>,
Alistair Popple <apopple@nvidia.com>,
"Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>,
Davidlohr Bueso <dave@stgolabs.net>,
Vishal Verma <vishal.l.verma@intel.com>,
Ira Weiny <ira.weiny@intel.com>
Subject: Re: [PATCH v3 2/3] cxl/region: Support to calculate memory tier abstract distance
Date: Thu, 20 Jun 2024 12:13:38 +0100 [thread overview]
Message-ID: <20240620121338.0000734f@Huawei.com> (raw)
In-Reply-To: <20240618084639.1419629-3-ying.huang@intel.com>
On Tue, 18 Jun 2024 16:46:38 +0800
Huang Ying <ying.huang@intel.com> wrote:
> An abstract distance value must be assigned by the driver that makes
> the memory available to the system. It reflects relative performance
> and is used to place memory nodes backed by CXL regions in the appropriate
> memory tiers allowing promotion/demotion within the existing memory tiering
> mechanism.
>
> The abstract distance is calculated based on the memory access latency
> and bandwidth of CXL regions.
>
> Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
> Acked-by: Dan Williams <dan.j.williams@intel.com>
LGTM
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
next prev parent reply other threads:[~2024-06-20 11:13 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-18 8:46 [PATCH v3 0/3] cxl/region: Support to calculate memory tier abstract distance Huang Ying
2024-06-18 8:46 ` [PATCH v3 1/3] cxl/region: Fix a race condition in memory hotplug notifier Huang Ying
2024-06-20 11:10 ` Jonathan Cameron
2024-06-24 16:18 ` Davidlohr Bueso
2024-07-23 14:31 ` Gregory Price
2024-07-23 17:00 ` fan
2024-06-18 8:46 ` [PATCH v3 2/3] cxl/region: Support to calculate memory tier abstract distance Huang Ying
2024-06-20 11:13 ` Jonathan Cameron [this message]
2024-07-23 14:49 ` Gregory Price
2024-07-23 17:40 ` fan
2024-06-18 8:46 ` [PATCH v3 3/3] cxl/region: Simplify cxl_region_nid() Huang Ying
2024-06-20 11:15 ` Jonathan Cameron
2024-06-21 2:25 ` Huang, Ying
2024-06-24 15:24 ` Dave Jiang
2024-07-23 14:50 ` Gregory Price
2024-07-23 17:49 ` fan
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