From: David Hildenbrand <david@redhat.com>
To: Balbir Singh <balbirs@nvidia.com>, linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org, "Karol Herbst" <kherbst@redhat.com>,
"Lyude Paul" <lyude@redhat.com>,
"Danilo Krummrich" <dakr@kernel.org>,
"David Airlie" <airlied@gmail.com>,
"Simona Vetter" <simona@ffwll.ch>,
"Jérôme Glisse" <jglisse@redhat.com>,
"Shuah Khan" <shuah@kernel.org>, "Barry Song" <baohua@kernel.org>,
"Baolin Wang" <baolin.wang@linux.alibaba.com>,
"Ryan Roberts" <ryan.roberts@arm.com>,
"Matthew Wilcox" <willy@infradead.org>,
"Peter Xu" <peterx@redhat.com>, "Zi Yan" <ziy@nvidia.com>,
"Kefeng Wang" <wangkefeng.wang@huawei.com>,
"Jane Chu" <jane.chu@oracle.com>,
"Alistair Popple" <apopple@nvidia.com>,
"Donet Tom" <donettom@linux.ibm.com>,
"Ralph Campbell" <rcampbell@nvidia.com>,
"Mika Penttilä" <mpenttil@redhat.com>,
"Matthew Brost" <matthew.brost@intel.com>,
"Francois Dugast" <francois.dugast@intel.com>
Subject: Re: [v2 00/11] THP support for zone device page migration
Date: Thu, 31 Jul 2025 10:56:51 +0200 [thread overview]
Message-ID: <df265383-476c-4f0b-87a0-37b5ff8e203d@redhat.com> (raw)
In-Reply-To: <1fa09b2c-4845-445f-9343-3a169e202ac5@nvidia.com>
On 31.07.25 10:41, Balbir Singh wrote:
> On 7/30/25 21:30, David Hildenbrand wrote:
>> On 30.07.25 11:21, Balbir Singh wrote:
>>
>> BTW, I keep getting confused by the topic.
>>
>> Isn't this essentially
>>
>> "mm: support device-private THP"
>>
>> and the support for migration is just a necessary requirement to *enable* device private?
>>
>
> I agree, I can change the title, but the focus of the use case is to
> support THP migration for improved latency and throughput. All of that
> involves support of device-private THP
Well, the subject as is makes one believe that THP support for
zone-device pages would already be there, and that you are adding
migration support.
That was the confusing part to me, because in the very first patch you
add ... THP support for (selected/private) zone device pages.
--
Cheers,
David / dhildenb
next prev parent reply other threads:[~2025-07-31 8:57 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-30 9:21 [v2 00/11] THP support for zone device page migration Balbir Singh
2025-07-30 9:21 ` [v2 01/11] mm/zone_device: support large zone device private folios Balbir Singh
2025-07-30 9:50 ` David Hildenbrand
2025-08-04 23:43 ` Balbir Singh
2025-08-05 4:22 ` Balbir Singh
2025-08-05 10:57 ` David Hildenbrand
2025-08-05 11:01 ` Balbir Singh
2025-08-05 12:58 ` David Hildenbrand
2025-08-05 21:15 ` Matthew Brost
2025-08-06 12:19 ` Balbir Singh
2025-07-30 9:21 ` [v2 02/11] mm/thp: zone_device awareness in THP handling code Balbir Singh
2025-07-30 11:16 ` Mika Penttilä
2025-07-30 11:27 ` Zi Yan
2025-07-30 11:30 ` Zi Yan
2025-07-30 11:42 ` Mika Penttilä
2025-07-30 12:08 ` Mika Penttilä
2025-07-30 12:25 ` Zi Yan
2025-07-30 12:49 ` Mika Penttilä
2025-07-30 15:10 ` Zi Yan
2025-07-30 15:40 ` Mika Penttilä
2025-07-30 15:58 ` Zi Yan
2025-07-30 16:29 ` Mika Penttilä
2025-07-31 7:15 ` David Hildenbrand
2025-07-31 8:39 ` Balbir Singh
2025-07-31 11:26 ` Zi Yan
2025-07-31 12:32 ` David Hildenbrand
2025-07-31 13:34 ` Zi Yan
2025-07-31 19:09 ` David Hildenbrand
2025-08-01 0:49 ` Balbir Singh
2025-08-01 1:09 ` Zi Yan
2025-08-01 7:01 ` David Hildenbrand
2025-08-01 1:16 ` Mika Penttilä
2025-08-01 4:44 ` Balbir Singh
2025-08-01 5:57 ` Balbir Singh
2025-08-01 6:01 ` Mika Penttilä
2025-08-01 7:04 ` David Hildenbrand
2025-08-01 8:01 ` Balbir Singh
2025-08-01 8:46 ` David Hildenbrand
2025-08-01 11:10 ` Zi Yan
2025-08-01 12:20 ` Mika Penttilä
2025-08-01 12:28 ` Zi Yan
2025-08-02 1:17 ` Balbir Singh
2025-08-02 10:37 ` Balbir Singh
2025-08-02 12:13 ` Mika Penttilä
2025-08-04 22:46 ` Balbir Singh
2025-08-04 23:26 ` Mika Penttilä
2025-08-05 4:10 ` Balbir Singh
2025-08-05 4:24 ` Mika Penttilä
2025-08-05 5:19 ` Mika Penttilä
2025-08-05 10:27 ` Balbir Singh
2025-08-05 10:35 ` Mika Penttilä
2025-08-05 10:36 ` Balbir Singh
2025-08-05 10:46 ` Mika Penttilä
2025-07-30 20:05 ` kernel test robot
2025-07-30 9:21 ` [v2 03/11] mm/migrate_device: THP migration of zone device pages Balbir Singh
2025-07-31 16:19 ` kernel test robot
2025-07-30 9:21 ` [v2 04/11] mm/memory/fault: add support for zone device THP fault handling Balbir Singh
2025-07-30 9:21 ` [v2 05/11] lib/test_hmm: test cases and support for zone device private THP Balbir Singh
2025-07-31 11:17 ` kernel test robot
2025-07-30 9:21 ` [v2 06/11] mm/memremap: add folio_split support Balbir Singh
2025-07-30 9:21 ` [v2 07/11] mm/thp: add split during migration support Balbir Singh
2025-07-31 10:04 ` kernel test robot
2025-07-30 9:21 ` [v2 08/11] lib/test_hmm: add test case for split pages Balbir Singh
2025-07-30 9:21 ` [v2 09/11] selftests/mm/hmm-tests: new tests for zone device THP migration Balbir Singh
2025-07-30 9:21 ` [v2 10/11] gpu/drm/nouveau: add THP migration support Balbir Singh
2025-07-30 9:21 ` [v2 11/11] selftests/mm/hmm-tests: new throughput tests including THP Balbir Singh
2025-07-30 11:30 ` [v2 00/11] THP support for zone device page migration David Hildenbrand
2025-07-30 23:18 ` Alistair Popple
2025-07-31 8:41 ` Balbir Singh
2025-07-31 8:56 ` David Hildenbrand [this message]
2025-08-05 21:34 ` Matthew Brost
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