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Date:   Fri, 19 Feb 2021 15:05:51 +0530
From:   Viresh Kumar <viresh.kumar@linaro.org>
To:     Yue Hu <zbestahu@gmail.com>
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        huyue2@yulong.com, zbestahu@163.com
Subject: Re: [PATCH] cpufreq: schedutil: Don't consider freq reduction to
 busy CPU if need_freq_update is set
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On 19-02-21, 16:20, Yue Hu wrote:
> However, we will skip the update if need_freq_update is not set.

Not really, we will update freq periodically nevertheless, around
every 10ms or something..

> And do the update if need_freq_update is set.

Yeah, that breaks the periodic cycle to attend to some urgent request.

> Note that there are unnecessary fast switch check and spin lock/unlock
> operations in freq skip path.

Maybe, I am not sure. We are all up for optimizations if there are
any.

> If we consider unnecessary behaviors above, then we should return right
> away rather than continue to execute following code.

As I said earlier, we may end up updating the frequency even if
need_freq_update is unset.

-- 
viresh