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 v2 0/2] mm/slub: batch partial slab list operations
Date: Thu, 28 May 2026 17:52:42 +0800 [thread overview]
Message-ID: <20260528095254.43721-1-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 reduces the number of list operations by processing slabs in
batches, thereby minimizing the time spent inside the critical section.
Patch 2 is a cleanup patch that wraps duplicated code into a helper
function.
Changes in v2:
- Patch 1 apply the same optimization to __refill_objects_node. (Thanks
Harry and Vlastimil)
- Patch 2 introduce a helper to wraps duplicated code. (Thanks Harry)
Hao Li (2):
mm/slub: detach and reattach partial slabs in batch
mm/slub: introduce helper to decrement partial slab count and clear
flag
mm/slub.c | 43 +++++++++++++++++++++++++++++++------------
1 file changed, 31 insertions(+), 12 deletions(-)
base-commit: 6b41dc6749232c14f3e069f8115084a7bbeee402
--
2.54.0
next reply other threads:[~2026-05-28 9:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-28 9:52 Hao Li [this message]
2026-05-28 9:52 ` [PATCH v2 1/2] mm/slub: detach and reattach partial slabs in batch Hao Li
2026-05-28 9:52 ` [PATCH v2 2/2] mm/slub: introduce helper to decrement partial slab count and clear flag Hao Li
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