From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 10/14] arm64/numa: define numa_distance as array to simplify code
Date: Fri, 26 Aug 2016 16:29:16 +0100 [thread overview]
Message-ID: <20160826152915.GH30302@arm.com> (raw)
In-Reply-To: <1472024693-12912-11-git-send-email-thunder.leizhen@huawei.com>
On Wed, Aug 24, 2016 at 03:44:49PM +0800, Zhen Lei wrote:
> 1. MAX_NUMNODES is base on CONFIG_NODES_SHIFT, the default value of the
> latter is very small now.
> 2. Suppose the default value of MAX_NUMNODES is enlarged to 64, so the
> size of numa_distance is 4K, it's still acceptable if run the Image
> on other processors.
> 3. It will make function __node_distance quicker than before.
>
> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
> ---
> arch/arm64/include/asm/numa.h | 1 -
> arch/arm64/mm/numa.c | 74 +++----------------------------------------
> 2 files changed, 5 insertions(+), 70 deletions(-)
I fail to see the advantages of this patch. Do you have some compelling
performance figures or something?
Will
next prev parent reply other threads:[~2016-08-26 15:29 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-24 7:44 [PATCH v7 00/14] fix some type infos and bugs for arm64/of numa Zhen Lei
2016-08-24 7:44 ` [PATCH v7 01/14] of/numa: remove a duplicated pr_debug information Zhen Lei
2016-08-24 7:44 ` [PATCH v7 02/14] of/numa: fix a memory@ node can only contains one memory block Zhen Lei
2016-08-24 7:44 ` [PATCH v7 03/14] arm64/numa: add nid check for " Zhen Lei
2016-08-26 12:39 ` Will Deacon
2016-08-27 8:02 ` Leizhen (ThunderTown)
2016-08-24 7:44 ` [PATCH v7 04/14] of/numa: remove a duplicated warning Zhen Lei
2016-08-24 7:44 ` [PATCH v7 05/14] arm64/numa: avoid inconsistent information to be printed Zhen Lei
2016-08-26 12:47 ` Will Deacon
2016-08-27 8:54 ` Leizhen (ThunderTown)
2016-08-30 17:51 ` Will Deacon
2016-08-31 2:29 ` Leizhen (ThunderTown)
2016-08-24 7:44 ` [PATCH v7 06/14] of_numa: Use of_get_next_parent to simplify code Zhen Lei
2016-08-24 7:44 ` [PATCH v7 07/14] of_numa: Use pr_fmt() Zhen Lei
2016-08-24 7:44 ` [PATCH v7 08/14] arm64: numa: " Zhen Lei
2016-08-26 12:54 ` Will Deacon
2016-08-27 9:14 ` Leizhen (ThunderTown)
2016-08-24 7:44 ` [PATCH v7 09/14] arm64/numa: support HAVE_SETUP_PER_CPU_AREA Zhen Lei
2016-08-26 13:28 ` Will Deacon
2016-08-27 10:06 ` Leizhen (ThunderTown)
2016-08-24 7:44 ` [PATCH v7 10/14] arm64/numa: define numa_distance as array to simplify code Zhen Lei
2016-08-26 15:29 ` Will Deacon [this message]
2016-08-27 10:29 ` Leizhen (ThunderTown)
2016-08-24 7:44 ` [PATCH v7 11/14] arm64/numa: support HAVE_MEMORYLESS_NODES Zhen Lei
2016-08-26 15:43 ` Will Deacon
2016-08-27 11:05 ` Leizhen (ThunderTown)
2016-08-29 3:15 ` Leizhen (ThunderTown)
2016-08-24 7:44 ` [PATCH v7 12/14] arm64/numa: remove the limitation that cpu0 must bind to node0 Zhen Lei
2016-08-26 15:49 ` Will Deacon
2016-08-29 6:55 ` Leizhen (ThunderTown)
2016-08-24 7:44 ` [PATCH v7 13/14] of/numa: remove the constraint on the distances of node pairs Zhen Lei
2016-08-24 7:44 ` [PATCH v7 14/14] Documentation: " Zhen Lei
2016-08-26 15:35 ` Will Deacon
2016-08-27 10:44 ` Leizhen (ThunderTown)
2016-08-30 17:55 ` Will Deacon
2016-08-31 2:46 ` Leizhen (ThunderTown)
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