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Subject: Re: [PATCH v2] sched/topology: fix the issue groups don't span
 domain->span for NUMA diameter > 2
To:     Barry Song <song.bao.hua@hisilicon.com>,
        valentin.schneider@arm.com, vincent.guittot@linaro.org,
        mgorman@suse.de, mingo@kernel.org, peterz@infradead.org,
        dietmar.eggemann@arm.com, morten.rasmussen@arm.com,
        linux-kernel@vger.kernel.org
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        tiantao6@hisilicon.com, wanghuiqiang@huawei.com,
        prime.zeng@hisilicon.com, jonathan.cameron@huawei.com,
        guodong.xu@linaro.org
References: <20210203111201.20720-1-song.bao.hua@hisilicon.com>
From:   Meelis Roos <mroos@linux.ee>
Message-ID: <d3ec7706-6560-70dd-d968-26460ce0c666@linux.ee>
Date:   Wed, 3 Feb 2021 13:57:35 +0200
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03.02.21 13:12 Barry Song wrote:
> kernel/sched/topology.c | 85 +++++++++++++++++++++++++----------------
>   1 file changed, 53 insertions(+), 32 deletions(-)
> 
> diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
> index 5d3675c7a76b..964ed89001fe 100644
> --- a/kernel/sched/topology.c
> +++ b/kernel/sched/topology.c

This one still works on the Sun X4600-M2, on top of v5.11-rc6-55-g3aaf0a27ffc2.


Performance-wise - is the some simple benhmark to run to meaure the impact? Compared to what - 5.10.0 or the kernel with the warning?

drop caches and time the build time of linux kernel with make -j64?

-- 
Meelis Roos