From: Xiongwei Song <xiongwei.song@xxxxxxxxxxxxx>
There is no a value assigned to slab_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@xxxxxxxxxxxxx>
---
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..213491ffb66f 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:automatically scaled by number of cpus)
.. slab_min_order=x (default 0)
.. slab_max_order=x (default 3 (PAGE_ALLOC_COSTLY_ORDER))
--
2.34.1
