From: David Hildenbrand <david@redhat.com>
To: "Christoph Lameter (Ampere)" <cl@gentwo.org>,
Nico Pache <npache@redhat.com>
Cc: linux-mm@kvack.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
akpm@linux-foundation.org, corbet@lwn.net, rostedt@goodmis.org,
mhiramat@kernel.org, mathieu.desnoyers@efficios.com,
baohua@kernel.org, baolin.wang@linux.alibaba.com,
ryan.roberts@arm.com, willy@infradead.org, peterx@redhat.com,
ziy@nvidia.com, wangkefeng.wang@huawei.com,
usamaarif642@gmail.com, sunnanyong@huawei.com,
vishal.moola@gmail.com, thomas.hellstrom@linux.intel.com,
yang@os.amperecomputing.com, kirill.shutemov@linux.intel.com,
aarcange@redhat.com, raquini@redhat.com, dev.jain@arm.com,
anshuman.khandual@arm.com, catalin.marinas@arm.com,
tiwai@suse.de, will@kernel.org, dave.hansen@linux.intel.com,
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zokeefe@google.com, hannes@cmpxchg.org, rientjes@google.com,
mhocko@suse.com, rdunlap@infradead.org,
lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com
Subject: Re: [PATCH v5 12/12] Documentation: mm: update the admin guide for mTHP collapse
Date: Tue, 29 Apr 2025 19:15:13 +0200 [thread overview]
Message-ID: <90677959-9ab2-438b-96b3-4024ea1a5c65@redhat.com> (raw)
In-Reply-To: <6fd003dc-2a2d-ca15-e7b6-9af988fdbc3f@gentwo.org>
On 29.04.25 18:38, Christoph Lameter (Ampere) wrote:
> On Mon, 28 Apr 2025, Nico Pache wrote:
>
>> THP can be enabled system wide or restricted to certain tasks or even
>> memory ranges inside task's address space. Unless THP is completely
>> disabled, there is ``khugepaged`` daemon that scans memory and
>> -collapses sequences of basic pages into PMD-sized huge pages.
>> +collapses sequences of basic pages into huge pages.
>
> huge pages usually have a fixed size like 2M and are tied to the page
> table levels.
>
> Would it not be advisable to use a different term here like "large folio"
> or "mTHP sized folio" or something like that?
"Traditional THPs or mTHPs (both, currently represented as "large
folios" in the kernel).
--
Cheers,
David / dhildenb
prev parent reply other threads:[~2025-04-29 17:15 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-28 18:12 [PATCH v5 00/12] khugepaged: mTHP support Nico Pache
2025-04-28 18:12 ` [PATCH v5 01/12] khugepaged: rename hpage_collapse_* to khugepaged_* Nico Pache
2025-04-29 13:41 ` Zi Yan
2025-04-30 7:47 ` Baolin Wang
2025-04-28 18:12 ` [PATCH v5 02/12] introduce khugepaged_collapse_single_pmd to unify khugepaged and madvise_collapse Nico Pache
2025-04-30 7:56 ` Baolin Wang
2025-04-28 18:12 ` [PATCH v5 03/12] khugepaged: generalize hugepage_vma_revalidate for mTHP support Nico Pache
2025-04-28 18:12 ` [PATCH v5 04/12] khugepaged: generalize alloc_charge_folio() Nico Pache
2025-04-28 18:12 ` [PATCH v5 05/12] khugepaged: generalize __collapse_huge_page_* for mTHP support Nico Pache
2025-04-28 18:12 ` [PATCH v5 06/12] khugepaged: introduce khugepaged_scan_bitmap " Nico Pache
2025-04-30 10:08 ` Baolin Wang
2025-04-30 18:56 ` Nico Pache
2025-05-01 23:03 ` Nico Pache
2025-05-02 1:23 ` Baolin Wang
2025-06-06 16:37 ` Dev Jain
2025-06-07 12:48 ` Nico Pache
2025-04-28 18:12 ` [PATCH v5 07/12] khugepaged: add " Nico Pache
2025-04-30 20:51 ` Jann Horn
2025-05-01 22:29 ` Nico Pache
2025-05-02 6:29 ` David Hildenbrand
2025-05-02 12:50 ` Jann Horn
2025-05-02 15:18 ` David Hildenbrand
2025-05-02 15:24 ` Lorenzo Stoakes
2025-05-02 15:39 ` David Hildenbrand
2025-05-02 15:26 ` Jann Horn
2025-05-02 15:30 ` Nico Pache
2025-05-02 15:42 ` David Hildenbrand
2025-05-01 12:58 ` Hugh Dickins
2025-05-01 16:15 ` Andrew Morton
2025-05-01 22:30 ` Nico Pache
2025-04-28 18:12 ` [PATCH v5 08/12] khugepaged: skip collapsing mTHP to smaller orders Nico Pache
2025-04-30 10:09 ` Baolin Wang
2025-04-28 18:12 ` [PATCH v5 09/12] khugepaged: avoid unnecessary mTHP collapse attempts Nico Pache
2025-04-30 10:12 ` Baolin Wang
2025-04-30 18:43 ` Nico Pache
2025-04-28 18:12 ` [PATCH v5 10/12] khugepaged: improve tracepoints for mTHP orders Nico Pache
2025-04-28 18:12 ` [PATCH v5 11/12] khugepaged: add per-order mTHP khugepaged stats Nico Pache
2025-04-28 18:12 ` [PATCH v5 12/12] Documentation: mm: update the admin guide for mTHP collapse Nico Pache
2025-04-29 5:10 ` Bagas Sanjaya
2025-04-29 16:38 ` Christoph Lameter (Ampere)
2025-04-29 17:15 ` David Hildenbrand [this message]
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