From: Christoph Lameter <cl@linux.com>
To: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Nishanth Aravamudan <nacc@linux.vnet.ibm.com>,
David Rientjes <rientjes@google.com>,
Han Pingtian <hanpt@linux.vnet.ibm.com>,
Pekka Enberg <penberg@kernel.org>,
Linux Memory Management List <linux-mm@kvack.org>,
Paul Mackerras <paulus@samba.org>,
Anton Blanchard <anton@samba.org>, Matt Mackall <mpm@selenic.com>,
linuxppc-dev@lists.ozlabs.org,
Wanpeng Li <liwanp@linux.vnet.ibm.com>
Subject: Re: [RFC PATCH 2/3] topology: support node_numa_mem() for determining the fallback node
Date: Mon, 24 Feb 2014 13:54:35 -0600 (CST) [thread overview]
Message-ID: <alpine.DEB.2.10.1402241353070.20839@nuc> (raw)
In-Reply-To: <20140224050851.GB14814@lge.com>
On Mon, 24 Feb 2014, Joonsoo Kim wrote:
> > It will not common get there because of the tracking. Instead a per cpu
> > object will be used.
> > > get_partial_node() always fails even if there are some partial slab on
> > > memoryless node's neareast node.
> >
> > Correct and that leads to a page allocator action whereupon the node will
> > be marked as empty.
>
> Why do we need to request to a page allocator if there is partial slab?
> Checking whether node is memoryless or not is really easy, so we don't need
> to skip this. To skip this is suboptimal solution.
The page allocator action is also used to determine to which other node we
should fall back if the node is empty. So we need to call the page
allocator when the per cpu slab is exhaused with the node of the
memoryless node to get memory from the proper fallback node.
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next prev parent reply other threads:[~2014-02-24 19:54 UTC|newest]
Thread overview: 124+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-07 2:21 [PATCH] slub: Don't throw away partial remote slabs if there is no local memory Anton Blanchard
2014-01-07 4:19 ` Wanpeng Li
2014-01-07 4:19 ` Wanpeng Li
2014-01-07 4:19 ` Wanpeng Li
2014-01-07 6:49 ` Andi Kleen
2014-01-08 14:03 ` Anton Blanchard
2014-01-07 7:41 ` Joonsoo Kim
2014-01-07 8:48 ` Wanpeng Li
2014-01-07 9:10 ` Joonsoo Kim
2014-01-07 9:21 ` Wanpeng Li
2014-01-07 9:21 ` Wanpeng Li
2014-01-07 9:21 ` Wanpeng Li
2014-01-07 9:31 ` Joonsoo Kim
2014-01-07 9:49 ` Wanpeng Li
2014-01-07 9:49 ` Wanpeng Li
2014-01-07 9:49 ` Wanpeng Li
2014-01-07 8:48 ` Wanpeng Li
2014-01-07 8:48 ` Wanpeng Li
2014-01-07 9:52 ` Wanpeng Li
2014-01-09 0:20 ` Joonsoo Kim
2014-01-07 9:52 ` Wanpeng Li
2014-01-07 9:52 ` Wanpeng Li
2014-01-20 9:10 ` Wanpeng Li
2014-01-20 9:10 ` Wanpeng Li
2014-01-20 9:10 ` Wanpeng Li
[not found] ` <52dce7fe.e5e6420a.5ff6.ffff84a0SMTPIN_ADDED_BROKEN@mx.google.com>
2014-01-20 22:13 ` Christoph Lameter
2014-01-21 2:20 ` Wanpeng Li
2014-01-21 2:20 ` Wanpeng Li
2014-01-21 2:20 ` Wanpeng Li
2014-01-24 3:09 ` Wanpeng Li
2014-01-24 3:09 ` Wanpeng Li
2014-01-24 3:09 ` Wanpeng Li
2014-01-24 3:14 ` Wanpeng Li
2014-01-24 3:14 ` Wanpeng Li
2014-01-24 3:14 ` Wanpeng Li
[not found] ` <52e1da8f.86f7440a.120f.25f3SMTPIN_ADDED_BROKEN@mx.google.com>
2014-01-24 15:50 ` Christoph Lameter
2014-01-24 21:03 ` David Rientjes
2014-01-24 22:19 ` Nishanth Aravamudan
2014-01-24 23:29 ` Nishanth Aravamudan
2014-01-24 23:49 ` David Rientjes
2014-01-25 0:16 ` Nishanth Aravamudan
2014-01-25 0:25 ` David Rientjes
2014-01-25 1:10 ` Nishanth Aravamudan
2014-01-27 5:58 ` Joonsoo Kim
2014-01-28 18:29 ` Nishanth Aravamudan
2014-01-29 15:54 ` Christoph Lameter
2014-01-29 22:36 ` Nishanth Aravamudan
2014-01-30 16:26 ` Christoph Lameter
2014-02-03 23:00 ` Nishanth Aravamudan
2014-02-04 3:38 ` Christoph Lameter
2014-02-04 7:26 ` Nishanth Aravamudan
2014-02-04 20:39 ` Christoph Lameter
2014-02-05 0:13 ` Nishanth Aravamudan
2014-02-05 19:28 ` Christoph Lameter
2014-02-06 2:08 ` Nishanth Aravamudan
2014-02-06 17:25 ` Christoph Lameter
2014-01-27 16:18 ` Christoph Lameter
2014-02-06 2:07 ` Nishanth Aravamudan
2014-02-06 8:04 ` Joonsoo Kim
[not found] ` <20140206185955.GA7845@linux.vnet.ibm.com>
2014-02-06 19:28 ` Nishanth Aravamudan
2014-02-07 8:03 ` Joonsoo Kim
2014-02-06 8:07 ` [RFC PATCH 1/3] slub: search partial list on numa_mem_id(), instead of numa_node_id() Joonsoo Kim
2014-02-06 8:07 ` [RFC PATCH 2/3] topology: support node_numa_mem() for determining the fallback node Joonsoo Kim
2014-02-06 8:52 ` David Rientjes
2014-02-06 10:29 ` Joonsoo Kim
2014-02-06 19:11 ` Nishanth Aravamudan
2014-02-07 5:42 ` Joonsoo Kim
2014-02-06 20:52 ` David Rientjes
2014-02-07 5:48 ` Joonsoo Kim
2014-02-07 17:53 ` Christoph Lameter
2014-02-07 18:51 ` Christoph Lameter
2014-02-07 21:38 ` Nishanth Aravamudan
2014-02-10 1:15 ` Joonsoo Kim
2014-02-10 1:29 ` Joonsoo Kim
2014-02-11 18:45 ` Christoph Lameter
2014-02-10 19:13 ` Nishanth Aravamudan
2014-02-11 7:42 ` Joonsoo Kim
2014-02-12 22:16 ` Christoph Lameter
2014-02-13 3:53 ` Nishanth Aravamudan
2014-02-17 6:52 ` Joonsoo Kim
2014-02-18 16:38 ` Christoph Lameter
2014-02-19 22:04 ` David Rientjes
2014-02-20 16:02 ` Christoph Lameter
2014-02-24 5:08 ` Joonsoo Kim
2014-02-24 19:54 ` Christoph Lameter [this message]
2014-03-13 16:51 ` Nishanth Aravamudan
2014-02-18 17:22 ` Nishanth Aravamudan
2014-02-13 6:51 ` Nishanth Aravamudan
2014-02-17 7:00 ` Joonsoo Kim
2014-02-18 16:57 ` Christoph Lameter
2014-02-18 17:28 ` Nishanth Aravamudan
2014-02-18 19:58 ` Christoph Lameter
2014-02-18 21:09 ` Nishanth Aravamudan
2014-02-18 21:49 ` Christoph Lameter
2014-02-18 22:22 ` Nishanth Aravamudan
2014-02-19 16:11 ` Christoph Lameter
2014-02-19 22:03 ` David Rientjes
2014-02-08 9:57 ` David Rientjes
2014-02-10 1:09 ` Joonsoo Kim
2014-07-22 1:03 ` Nishanth Aravamudan
2014-07-22 1:16 ` David Rientjes
2014-07-22 21:43 ` Nishanth Aravamudan
2014-07-22 21:49 ` Tejun Heo
2014-07-22 23:47 ` Nishanth Aravamudan
2014-07-23 0:43 ` David Rientjes
2014-02-06 8:07 ` [RFC PATCH 3/3] slub: fallback to get_numa_mem() node if we want to allocate on memoryless node Joonsoo Kim
2014-02-06 17:30 ` Christoph Lameter
2014-02-07 5:41 ` Joonsoo Kim
2014-02-07 17:49 ` Christoph Lameter
2014-02-10 1:22 ` Joonsoo Kim
2014-02-06 8:37 ` [RFC PATCH 1/3] slub: search partial list on numa_mem_id(), instead of numa_node_id() David Rientjes
2014-02-06 17:31 ` Christoph Lameter
2014-02-06 17:26 ` Christoph Lameter
2014-05-16 23:37 ` Nishanth Aravamudan
2014-05-19 2:41 ` Joonsoo Kim
2014-06-05 0:13 ` [RESEND PATCH] " David Rientjes
2014-01-27 16:24 ` [PATCH] slub: Don't throw away partial remote slabs if there is no local memory Christoph Lameter
2014-01-27 16:16 ` Christoph Lameter
2014-01-07 9:42 ` David Laight
2014-01-08 14:14 ` Anton Blanchard
2014-01-07 10:28 ` Wanpeng Li
2014-01-07 10:28 ` Wanpeng Li
2014-01-07 10:28 ` Wanpeng Li
[not found] ` <20140107041939.GA20916@hacker.(null)>
2014-01-08 14:17 ` Anton Blanchard
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