From: Valentin Schneider <valentin.schneider@arm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@kernel.org, peterz@infradead.org,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
morten.rasmussen@arm.com, mgorman@suse.de,
song.bao.hua@hisilicon.com
Subject: [PATCH 0/1] sched/topology: NUMA distance deduplication
Date: Fri, 22 Jan 2021 12:39:42 +0000 [thread overview]
Message-ID: <20210122123943.1217-1-valentin.schneider@arm.com> (raw)
Hi folks,
As pointed out by Barry in [1], there are topologies out there that struggle to
go through the NUMA distance deduplicating sort. Included patch is something
I wrote back when I started untangling this distance > 2 mess.
It's only been lightly tested on some array of QEMU-powered topologies I keep
around for this sort of things. I *think* this works out fine with the NODE
topology level, but I wouldn't be surprised if I (re)introduced an off-by-one
error in there.
@Barry feel free to test / edit this as you see fit.
[1]: http://lore.kernel.org/r/9d6c6d3ba6ac4272bf844034da4653fe@hisilicon.com
HTH.
Valentin Schneider (1):
sched/topology: Make sched_init_numa() use a set for the deduplicating
sort
include/linux/topology.h | 1 +
kernel/sched/topology.c | 99 +++++++++++++++++++---------------------
2 files changed, 49 insertions(+), 51 deletions(-)
--
2.27.0
next reply other threads:[~2021-01-22 12:41 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-22 12:39 Valentin Schneider [this message]
2021-01-22 12:39 ` [PATCH 1/1] sched/topology: Make sched_init_numa() use a set for the deduplicating sort Valentin Schneider
2021-01-25 2:23 ` Song Bao Hua (Barry Song)
2021-01-25 9:26 ` Valentin Schneider
2021-01-25 16:45 ` Valentin Schneider
2021-01-25 21:35 ` Song Bao Hua (Barry Song)
2021-01-28 14:47 ` Valentin Schneider
2021-01-29 2:02 ` Song Bao Hua (Barry Song)
2021-02-01 12:03 ` Valentin Schneider
2021-02-01 9:53 ` Dietmar Eggemann
2021-02-01 10:19 ` Vincent Guittot
2021-02-01 10:35 ` Song Bao Hua (Barry Song)
2021-02-01 11:55 ` Valentin Schneider
2021-02-02 10:03 ` [tip: sched/core] sched/topology: Fix sched_domain_topology_level alloc in sched_init_numa() tip-bot2 for Dietmar Eggemann
2021-02-17 13:17 ` tip-bot2 for Dietmar Eggemann
2021-03-17 19:04 [PATCH 0/1] sched/topology: NUMA distance deduplication John Paul Adrian Glaubitz
2021-03-17 19:36 ` Valentin Schneider
2021-03-17 19:47 ` John Paul Adrian Glaubitz
2021-03-17 20:04 ` Valentin Schneider
2021-03-17 20:56 ` Valentin Schneider
2021-03-17 23:26 ` John Paul Adrian Glaubitz
2021-03-18 10:28 ` John Paul Adrian Glaubitz
2021-03-18 10:48 ` Valentin Schneider
2021-03-17 21:14 ` Sergei Trofimovich
2021-03-17 21:58 ` Anatoly Pugachev
2021-03-17 23:29 ` John Paul Adrian Glaubitz
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