From:   Yicong Yang <yangyicong@hisilicon.com>
To:     <peterz@infradead.org>, <mingo@redhat.com>,
        <juri.lelli@redhat.com>, <vincent.guittot@linaro.org>,
        <tim.c.chen@linux.intel.com>, <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>
CC:     <dietmar.eggemann@arm.com>, <rostedt@goodmis.org>,
        <bsegall@google.com>, <bristot@redhat.com>,
        <prime.zeng@huawei.com>, <yangyicong@hisilicon.com>,
        <jonathan.cameron@huawei.com>, <ego@linux.vnet.ibm.com>,
        <srikar@linux.vnet.ibm.com>, <linuxarm@huawei.com>,
        <21cnbao@gmail.com>, <song.bao.hua@hisilicon.com>,
        <guodong.xu@linaro.org>
Subject: [PATCH 0/2] sched/fair: Wake task within the cluster when possible
Date:   Wed, 15 Dec 2021 12:11:47 +0800
Message-ID: <20211215041149.73171-1-yangyicong@hisilicon.com>
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This is the follow-up work to support cluster scheduler. Previously
we have added cluster level in the scheduler for both ARM64[1] and
X86[2] to support load balance between clusters to bring more memory
bandwidth and decrease cache contention. This patchset, on the other
hand, takes care of wake-up path by giving CPUs within the same cluster
a try before scanning the whole LLC to benefit those tasks communicating
with each other.

[1] 778c558f49a2 ("sched: Add cluster scheduler level in core and related Kconfig for ARM64")
[2] 66558b730f25 ("sched: Add cluster scheduler level for x86")

Barry Song (2):
  sched: Add per_cpu cluster domain info and cpus_share_cluster API
  sched/fair: Scan cluster before scanning LLC in wake-up path

 include/linux/sched/sd_flags.h |  5 ++++
 include/linux/sched/topology.h |  8 +++++-
 kernel/sched/core.c            | 12 +++++++++
 kernel/sched/fair.c            | 46 +++++++++++++++++++++++++++++++---
 kernel/sched/sched.h           |  2 ++
 kernel/sched/topology.c        |  9 +++++++
 6 files changed, 77 insertions(+), 5 deletions(-)

-- 
2.33.0