From: Vlastimil Babka <vbabka@suse.cz>
To: Harry Yoo <harry.yoo@oracle.com>
Cc: Suren Baghdasaryan <surenb@google.com>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Christoph Lameter <cl@gentwo.org>,
David Rientjes <rientjes@google.com>,
Roman Gushchin <roman.gushchin@linux.dev>,
Uladzislau Rezki <urezki@gmail.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
rcu@vger.kernel.org, maple-tree@lists.infradead.org
Subject: Re: [PATCH v5 10/14] mm, slab: allow NUMA restricted allocations to use percpu sheaves
Date: Tue, 26 Aug 2025 12:49:45 +0200 [thread overview]
Message-ID: <8a1455d2-3e5a-40e1-bfd2-455ab7fe1eef@suse.cz> (raw)
In-Reply-To: <aKwISYm2MO-zftfv@hyeyoo>
On 8/25/25 08:52, Harry Yoo wrote:
> On Wed, Jul 23, 2025 at 03:34:43PM +0200, Vlastimil Babka wrote:
>> Currently allocations asking for a specific node explicitly or via
>> mempolicy in strict_numa node bypass percpu sheaves. Since sheaves
>> contain mostly local objects, we can try allocating from them if the
>> local node happens to be the requested node or allowed by the mempolicy.
>> If we find the object from percpu sheaves is not from the expected node,
>> we skip the sheaves - this should be rare.
>>
>> Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
>> ---
>
> With or without ifdeffery suggested by Suren
> (or probably IS_ENABLED(CONFIG_NUMA) && node != NUMA_NO_NODE?),
>
> Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Thanks both, I've extracted IS_ENABLED(CONFIG_NUMA) && node != NUMA_NO_NODE)
to a local bool variable.
next prev parent reply other threads:[~2025-08-26 10:49 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-23 13:34 [PATCH v5 00/14] SLUB percpu sheaves Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 01/14] slab: add opt-in caching layer of " Vlastimil Babka
2025-08-18 10:09 ` Harry Yoo
2025-08-26 8:03 ` Vlastimil Babka
2025-08-19 4:19 ` Suren Baghdasaryan
2025-08-26 8:51 ` Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 02/14] slab: add sheaf support for batching kfree_rcu() operations Vlastimil Babka
2025-07-23 16:39 ` Uladzislau Rezki
2025-07-24 14:30 ` Vlastimil Babka
2025-07-24 17:36 ` Uladzislau Rezki
2025-07-23 13:34 ` [PATCH v5 03/14] slab: sheaf prefilling for guaranteed allocations Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 04/14] slab: determine barn status racily outside of lock Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 05/14] tools: Add testing support for changes to rcu and slab for sheaves Vlastimil Babka
2025-08-22 16:28 ` Suren Baghdasaryan
2025-08-26 9:32 ` Vlastimil Babka
2025-08-27 0:19 ` Suren Baghdasaryan
2025-07-23 13:34 ` [PATCH v5 06/14] tools: Add sheaves support to testing infrastructure Vlastimil Babka
2025-08-22 16:56 ` Suren Baghdasaryan
2025-08-26 9:59 ` Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 07/14] maple_tree: use percpu sheaves for maple_node_cache Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 08/14] mm, vma: use percpu sheaves for vm_area_struct cache Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 09/14] mm, slub: skip percpu sheaves for remote object freeing Vlastimil Babka
2025-08-25 5:22 ` Harry Yoo
2025-08-26 10:11 ` Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 10/14] mm, slab: allow NUMA restricted allocations to use percpu sheaves Vlastimil Babka
2025-08-22 19:58 ` Suren Baghdasaryan
2025-08-25 6:52 ` Harry Yoo
2025-08-26 10:49 ` Vlastimil Babka [this message]
2025-07-23 13:34 ` [PATCH v5 11/14] testing/radix-tree/maple: Increase readers and reduce delay for faster machines Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 12/14] maple_tree: Sheaf conversion Vlastimil Babka
2025-08-22 20:18 ` Suren Baghdasaryan
2025-08-26 14:22 ` Liam R. Howlett
2025-08-27 2:07 ` Suren Baghdasaryan
2025-08-28 14:27 ` Liam R. Howlett
2025-07-23 13:34 ` [PATCH v5 13/14] maple_tree: Add single node allocation support to maple state Vlastimil Babka
2025-08-22 20:25 ` Suren Baghdasaryan
2025-08-26 15:10 ` Liam R. Howlett
2025-08-27 2:03 ` Suren Baghdasaryan
2025-07-23 13:34 ` [PATCH v5 14/14] maple_tree: Convert forking to use the sheaf interface Vlastimil Babka
2025-08-22 20:29 ` Suren Baghdasaryan
2025-08-15 22:53 ` [PATCH v5 00/14] SLUB percpu sheaves Sudarsan Mahendran
2025-08-16 8:05 ` Harry Yoo
2025-08-16 17:35 ` Sudarsan Mahendran
2025-08-16 18:31 ` Vlastimil Babka
2025-08-16 18:33 ` Vlastimil Babka
2025-08-17 4:28 ` Sudarsan Mahendran
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