From: sxwjean@me.com
To: vbabka@suse.cz, 42.hyeyoo@gmail.com, cl@linux.com, linux-mm@kvack.org
Cc: penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com,
roman.gushchin@linux.dev, corbet@lwn.net, keescook@chromium.org,
arnd@arndb.de, akpm@linux-foundation.org,
gregkh@linuxfoundation.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org,
Xiongwei Song <xiongwei.song@windriver.com>
Subject: [PATCH v3 4/4] mm/slub: correct the default value of slub_min_objects in doc
Date: Sat, 9 Dec 2023 21:52:03 +0800 [thread overview]
Message-ID: <20231209135203.303508-5-sxwjean@me.com> (raw)
In-Reply-To: <20231209135203.303508-1-sxwjean@me.com>
From: Xiongwei Song <xiongwei.song@windriver.com>
There is no a value assigned to slub_min_objects by default, it always
is 0 that is initialized by compiler if no assigned value by command line.
min_objects is calculated based on processor numbers in calculate_order().
For more details, see commit 9b2cd506e5f2 ("slub: Calculate min_objects
based on number of processors.")
Signed-off-by: Xiongwei Song <xiongwei.song@windriver.com>
---
Documentation/mm/slub.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/mm/slub.rst b/Documentation/mm/slub.rst
index 6579a55b7852..56b27f493ba7 100644
--- a/Documentation/mm/slub.rst
+++ b/Documentation/mm/slub.rst
@@ -150,7 +150,7 @@ list_lock once in a while to deal with partial slabs. That overhead is
governed by the order of the allocation for each slab. The allocations
can be influenced by kernel parameters:
-.. slab_min_objects=x (default 4)
+.. slab_min_objects=x (default 0)
.. slab_min_order=x (default 0)
.. slab_max_order=x (default 3 (PAGE_ALLOC_COSTLY_ORDER))
--
2.34.1
next prev parent reply other threads:[~2023-12-09 13:53 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-09 13:51 [PATCH v3 0/4] supplement of slab allocator removal sxwjean
2023-12-09 13:52 ` [PATCH v3 1/4] Documentation: kernel-parameters: remove noaliencache sxwjean
2023-12-11 17:47 ` Jeff Johnson
2023-12-12 13:57 ` Song, Xiongwei
2023-12-09 13:52 ` [PATCH v3 2/4] mm/slub: unify all sl[au]b parameters with "slab_$param" sxwjean
2023-12-09 13:52 ` [PATCH v3 3/4] mm/slub: replace slub_$params with slab_$params in slub.rst sxwjean
2023-12-09 13:52 ` sxwjean [this message]
2023-12-09 13:59 ` [PATCH v3 4/4] mm/slub: correct the default value of slub_min_objects in doc Song, Xiongwei
2023-12-13 11:23 ` Vlastimil Babka
2023-12-14 14:11 ` Song, Xiongwei
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