Subject: Re: [PATCH 2/2] arm64: defconfig: enable CONFIG_SCHED_SMT

From: Valentin Schneider <[email-masked]>
Date: Thu, 27 Feb 2020 16:37:16 +0000

On Thu, Feb 27 2020, Dietmar Eggemann wrote:
>> before:
>>   $ cat /proc/sys/kernel/sched_domain/cpu*/domain*/name | sort | uniq
>>   DIE
>>   MC
>>
>> after:
>>   $ cat /proc/sys/kernel/sched_domain/cpu*/domain*/name | sort | uniq
>>   DIE
>>   MC
>
> Have you tested that EAS still comes up ?

Yep:

  root@valsch-h960:~# zcat /proc/config.gz | grep SMT
  CONFIG_SCHED_SMT=y
  root@valsch-h960:~# ./set_governor.sh schedutil
  [  127.834363] root_domain 0-7: pd4:{ cpus=4-7 nr_cstate=5 } pd0:{ cpus=0-3 nr_cstate=5 }
  [  127.842344] sched_energy_set: starting EAS

No reason for it not to come up unless something's broken (but it's
always good to check!).

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