From: Dave Hansen <dave.hansen@intel.com>
To: Li Zhe <lizhe.67@bytedance.com>,
akpm@linux-foundation.org, apopple@nvidia.com, arnd@arndb.de,
balbirs@nvidia.com, bp@alien8.de, dave.hansen@linux.intel.com,
david@kernel.org, kees@kernel.org, mingo@redhat.com,
rppt@kernel.org, tglx@kernel.org, muchun.song@linux.dev
Cc: linux-arch@vger.kernel.org, linux-hardening@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org
Subject: Re: [PATCH v7 0/9] mm: optimize zone-device memmap initialization
Date: Mon, 20 Jul 2026 06:05:06 -0700 [thread overview]
Message-ID: <33fae97d-75db-4df7-9aa3-05a51f8747cd@intel.com> (raw)
In-Reply-To: <20260720120259.1545-1-lizhe.67@bytedance.com>
On 7/20/26 05:02, Li Zhe wrote:
> This reduces the average memmap initialization time measured during
> rebind by about 60.4% for nd_pmem and 56.4% for dax_pmem.
There are lots of things in the kernel we could optimize.
Why is this important?
next prev parent reply other threads:[~2026-07-20 13:05 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-20 12:02 [PATCH v7 0/9] mm: optimize zone-device memmap initialization Li Zhe
2026-07-20 12:02 ` Li Zhe
2026-07-20 12:02 ` [PATCH v7 1/9] mm: fix stale ZONE_DEVICE refcount comment Li Zhe
2026-07-20 12:02 ` [PATCH v7 2/9] mm: factor zone-device page init helpers out of __init_zone_device_page Li Zhe
2026-07-20 12:02 ` [PATCH v7 3/9] mm: add a set_page_section_from_pfn() helper Li Zhe
2026-07-20 12:02 ` [PATCH v7 4/9] mm: add a template-based fast path for zone-device page init Li Zhe
2026-07-20 12:02 ` [PATCH v7 5/9] mm: extend the template fast path to zone-device compound tails Li Zhe
2026-07-20 12:02 ` [PATCH v7 6/9] string: introduce memcpy_nontemporal() Li Zhe
2026-07-20 12:02 ` [PATCH v7 7/9] x86/string: extend memcpy_flushcache() fixed-size fastpaths Li Zhe
2026-07-20 12:02 ` [PATCH v7 8/9] mm: use memcpy_nontemporal() in zone-device template copies Li Zhe
2026-07-20 12:02 ` [PATCH v7 9/9] mm: always use the zone-device template init path Li Zhe
2026-07-20 13:05 ` Dave Hansen [this message]
2026-07-20 22:43 ` [PATCH v7 0/9] mm: optimize zone-device memmap initialization Andrew Morton
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