From: Gregory Price <gourry@gourry.net>
To: Honggyu Kim <honggyu.kim@sk.com>
Cc: kernel_team@skhynix.com, Joshua Hahn <joshua.hahnjy@gmail.com>,
harry.yoo@oracle.com, ying.huang@linux.alibaba.com,
gregkh@linuxfoundation.org, rakie.kim@sk.com,
akpm@linux-foundation.org, rafael@kernel.org, lenb@kernel.org,
dan.j.williams@intel.com, Jonathan.Cameron@huawei.com,
dave.jiang@intel.com, horen.chuang@linux.dev, hannes@cmpxchg.org,
linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
linux-mm@kvack.org, kernel-team@meta.com, yunjeong.mun@sk.com
Subject: Re: [PATCH 2/2 v6] mm/mempolicy: Don't create weight sysfs for memoryless nodes
Date: Mon, 10 Mar 2025 10:22:11 -0400 [thread overview]
Message-ID: <Z871k085e-Th-jTz@gourry-fedora-PF4VCD3F> (raw)
In-Reply-To: <9caca3a8-280a-45bd-a081-cf4a28f05f21@sk.com>
On Mon, Mar 10, 2025 at 09:26:48PM +0900, Honggyu Kim wrote:
> Yeah, the proximity domain detects the node correctly as follows in dmesg.
>
> [ 0.009915] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x7fffffff]
> [ 0.009917] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x207fffffff]
> [ 0.009919] ACPI: SRAT: Node 1 PXM 1 [mem 0x60f80000000-0x64f7fffffff]
> [ 0.009924] ACPI: SRAT: Node 2 PXM 6 [mem 0x2080000000-0x807fffffff] hotplug
> [ 0.009925] ACPI: SRAT: Node 3 PXM 7 [mem 0x64f80000000-0x6cf7fffffff] hotplug
>
> It is printed even before CXL detection.
>
I wrote a some documentation on some example configurations last friday
https://lore.kernel.org/linux-mm/Z226PG9t-Ih7fJDL@gourry-fedora-PF4VCD3F/T/#m2780e47df7f0962a79182502afc99843bb046205
This isn't exhaustive, but as I said with Rakie, I think your
configuration is probably ok - if slightly confusing.
What I'm going to guess is happening is you have 1 CFMWS per device that
do not have matching SRAT entries, and then the CFMWS covering these:
> [ 0.009924] ACPI: SRAT: Node 2 PXM 6 [mem 0x2080000000-0x807fffffff] hotplug
> [ 0.009925] ACPI: SRAT: Node 3 PXM 7 [mem 0x64f80000000-0x6cf7fffffff] hotplug
have interleave set up
next prev parent reply other threads:[~2025-03-10 14:22 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20250228001631.1102-1-yunjeong.mun@sk.com>
2025-02-26 21:35 ` [PATCH 1/2 v6] mm/mempolicy: Weighted Interleave Auto-tuning Joshua Hahn
2025-02-26 21:35 ` [PATCH 2/2 v6] mm/mempolicy: Don't create weight sysfs for memoryless nodes Joshua Hahn
2025-02-27 2:32 ` Honggyu Kim
2025-02-27 3:20 ` Honggyu Kim
2025-03-03 21:56 ` Joshua Hahn
2025-03-04 12:53 ` Honggyu Kim
2025-03-03 16:19 ` Gregory Price
2025-03-04 13:03 ` Honggyu Kim
2025-03-04 16:16 ` Gregory Price
2025-03-04 16:29 ` Gregory Price
2025-03-06 12:39 ` Honggyu Kim
2025-03-06 17:32 ` Gregory Price
2025-03-07 11:46 ` Honggyu Kim
2025-03-07 17:51 ` Gregory Price
2025-03-10 12:26 ` Honggyu Kim
2025-03-10 14:22 ` Gregory Price [this message]
2025-03-11 2:07 ` Yunjeong Mun
2025-03-11 2:42 ` Gregory Price
2025-03-11 4:02 ` Yunjeong Mun
2025-03-11 4:42 ` Gregory Price
2025-03-11 9:51 ` Yunjeong Mun
2025-03-11 15:52 ` Gregory Price
2025-03-18 8:02 ` Yunjeong Mun
2025-03-18 11:02 ` Honggyu Kim
2025-03-18 15:13 ` Gregory Price
2025-03-19 9:56 ` Yunjeong Mun
2025-03-19 14:54 ` Gregory Price
2025-02-28 0:16 ` [PATCH 1/2 v6] mm/mempolicy: Weighted Interleave Auto-tuning yunjeong.mun
2025-02-28 6:39 ` Yunjeong Mun
2025-02-28 16:24 ` Joshua Hahn
2025-03-04 21:56 ` Joshua Hahn
2025-03-04 22:22 ` Joshua Hahn
2025-03-05 9:49 ` Yunjeong Mun
2025-03-05 16:28 ` Joshua Hahn
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