From: Hao Li <hao.li@linux.dev>
To: vbabka@kernel.org, harry@kernel.org, akpm@linux-foundation.org
Cc: cl@gentwo.org, rientjes@google.com, roman.gushchin@linux.dev,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Hao Li <hao.li@linux.dev>
Subject: [PATCH v3 0/2] mm/slub: batch partial slab list operations
Date: Fri, 29 May 2026 11:50:50 +0800 [thread overview]
Message-ID: <20260529035120.81304-1-hao.li@linux.dev> (raw)
The loops in get_partial_node_bulk() and __refill_objects_node() perform
individual list operations for each slab. This patchset optimize this.
Patch 1 is a cleanup patch that wraps duplicated code into helper
functions.
Patch 2 reduces the number of list operations by processing slabs in
batches, thereby minimizing the time spent inside the critical section.
Changes in v3:
- Reorder the two patches for better logical flow. (Thanks Vlastimil)
- Introduce set_node_partial_state for symmetry. (Thanks Vlastimil)
Changes in v2:
- Patch 1 applies the same optimization to __refill_objects_node. (Thanks
Harry and Vlastimil)
- Patch 2 introduces a helper to wraps duplicated code. (Thanks Harry)
Hao Li (2):
mm/slub: introduce helpers for node partial slab state
mm/slub: detach and reattach partial slabs in batch
mm/slub.c | 51 +++++++++++++++++++++++++++++++++++++--------------
1 file changed, 37 insertions(+), 14 deletions(-)
base-commit: 6b41dc6749232c14f3e069f8115084a7bbeee402
--
2.54.0
next reply other threads:[~2026-05-29 3:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-29 3:50 Hao Li [this message]
2026-05-29 3:50 ` [PATCH v3 1/2] mm/slub: introduce helpers for node partial slab state Hao Li
2026-05-29 3:50 ` [PATCH v3 2/2] mm/slub: detach and reattach partial slabs in batch Hao Li
2026-05-29 8:01 ` [PATCH v3 0/2] mm/slub: batch partial slab list operations Vlastimil Babka (SUSE)
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