From: David Hildenbrand <david@redhat.com>
To: Kefeng Wang <wangkefeng.wang@huawei.com>,
Andrew Morton <akpm@linux-foundation.org>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
linux-mm@kvack.org
Cc: Zi Yan <ziy@nvidia.com>,
Baolin Wang <baolin.wang@linux.alibaba.com>,
Ryan Roberts <ryan.roberts@arm.com>, Dev Jain <dev.jain@arm.com>,
Barry Song <baohua@kernel.org>, Lance Yang <lance.yang@linux.dev>,
Liam.Howlett@oracle.com,
Sidhartha Kumar <sidhartha.kumar@oracle.com>
Subject: Re: [PATCH v2 2/3] mm: mprotect: avoid unnecessary struct page accessing if pte_protnone()
Date: Tue, 14 Oct 2025 14:13:26 +0200 [thread overview]
Message-ID: <2d83dda6-b552-4cfe-a092-a2df534c7cc1@redhat.com> (raw)
In-Reply-To: <20251014113349.2618158-3-wangkefeng.wang@huawei.com>
On 14.10.25 13:33, Kefeng Wang wrote:
> If the pte_protnone() is true, we could avoid unnecessary struct page
> accessing and reduce cache footprint when scanning page tables for prot
> numa, the performance test of pmbench memory accessing benchmark
> should be benifit, see more commit a818f5363a0e ("autonuma: reduce cache
> footprint when scanning page tables").
>
> Reviewed-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
> ---
Acked-by: David Hildenbrand <david@redhat.com>
--
Cheers
David / dhildenb
next prev parent reply other threads:[~2025-10-14 12:13 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-14 11:33 [PATCH v2 0/3] mm: some optimizations for prot numa Kefeng Wang
2025-10-14 11:33 ` [PATCH v2 1/3] mm: mprotect: always skip dma pinned folio in prot_numa_skip() Kefeng Wang
2025-10-14 22:20 ` Barry Song
2025-10-14 11:33 ` [PATCH v2 2/3] mm: mprotect: avoid unnecessary struct page accessing if pte_protnone() Kefeng Wang
2025-10-14 12:13 ` David Hildenbrand [this message]
2025-10-15 7:32 ` Dev Jain
2025-10-15 8:50 ` Kefeng Wang
2025-10-14 11:33 ` [PATCH v2 3/3] mm: huge_memory: use folio_skip_prot_numa() for pmd folio Kefeng Wang
2025-10-15 7:30 ` Dev Jain
2025-10-15 9:21 ` Kefeng Wang
2025-10-15 9:54 ` David Hildenbrand
2025-10-15 11:04 ` Kefeng Wang
2025-10-15 11:30 ` David Hildenbrand
2025-10-15 12:37 ` Kefeng Wang
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