From: Yu Zhao <yuzhao@google.com>
To: Barry Song <21cnbao@gmail.com>
Cc: akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, Barry Song <v-songbaohua@oppo.com>,
Ryan Roberts <ryan.roberts@arm.com>,
Kefeng Wang <wangkefeng.wang@huawei.com>,
John Hubbard <jhubbard@nvidia.com>,
David Hildenbrand <david@redhat.com>,
Alistair Popple <apopple@nvidia.com>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
David Rientjes <rientjes@google.com>,
"Huang, Ying" <ying.huang@intel.com>,
Hugh Dickins <hughd@google.com>,
Itaru Kitayama <itaru.kitayama@gmail.com>,
"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
Luis Chamberlain <mcgrof@kernel.org>,
Matthew Wilcox <willy@infradead.org>,
Vlastimil Babka <vbabka@suse.cz>, Yang Shi <shy828301@gmail.com>,
Yin Fengwei <fengwei.yin@intel.com>, Zi Yan <ziy@nvidia.com>
Subject: Re: [PATCH] mm: alloc_anon_folio: avoid doing vma_thp_gfp_mask in fallback cases
Date: Mon, 1 Apr 2024 10:31:20 -0400 [thread overview]
Message-ID: <CAOUHufbPAAY5WqcxZ8qk2DPG1Yv_Z6iSg6BC_YgfdRJLb+YNDA@mail.gmail.com> (raw)
In-Reply-To: <20240329073750.20012-1-21cnbao@gmail.com>
On Fri, Mar 29, 2024 at 3:38 AM Barry Song <21cnbao@gmail.com> wrote:
>
> From: Barry Song <v-songbaohua@oppo.com>
>
> Fallback rates surpassing 90% have been observed on phones utilizing 64KiB
> CONT-PTE mTHP. In these scenarios, when one out of every 16 PTEs fails
> to allocate large folios, the remaining 15 PTEs fallback. Consequently,
> invoking vma_thp_gfp_mask seems redundant in such cases. Furthermore,
> abstaining from its use can also contribute to improved code readability.
Acked-by: Yu Zhao <yuzhao@google.com>
next prev parent reply other threads:[~2024-04-01 14:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-29 7:37 Barry Song
2024-04-01 14:31 ` Yu Zhao [this message]
2024-04-01 15:20 ` Zi Yan
2024-04-02 7:58 ` Ryan Roberts
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