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Re: [PATCH 3/3] cpuidle/menu: add per cpu pm_qos_resume_latency consideration

From Alex Shi <alex.shi@linaro.org>
Newsgroups linux.kernel
Subject Re: [PATCH 3/3] cpuidle/menu: add per cpu pm_qos_resume_latency consideration
Date 2017-01-22 02:40 +0100
Message-ID <t2fip-2He-3@gated-at.bofh.it> (permalink)
References (2 earlier) <t0yyT-5mX-23@gated-at.bofh.it> <t1hmh-8aB-3@gated-at.bofh.it> <t1i8F-jB-15@gated-at.bofh.it> <t1sKK-6S0-17@gated-at.bofh.it> <t1F5g-6db-21@gated-at.bofh.it>
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> Yeah, that could be problematic. The code snippet gives the general idea but it
> could be changed by for example by a flag telling the cpus when they enter idle
> to update their state_count. Or something like that.

Yes, this idea could be helpful.

But since the idle path isn't a hot path. and a few memory access won't 
cost a lot. So I doubt if the benefit could be measurable.


>
> But if you think the patchset is fine, it is ok, we can improve things afterwards.
>

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Re: [PATCH 3/3] cpuidle/menu: add per cpu pm_qos_resume_latency  consideration Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-01-17 10:50 +0100
  Re: [PATCH 3/3] cpuidle/menu: add per cpu pm_qos_resume_latency  consideration Alex Shi <alex.shi@linaro.org> - 2017-01-19 10:40 +0100
    Re: [PATCH 3/3] cpuidle/menu: add per cpu pm_qos_resume_latency  consideration Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-01-19 11:30 +0100
      Re: [PATCH 3/3] cpuidle/menu: add per cpu pm_qos_resume_latency consideration "Rafael J. Wysocki" <rafael@kernel.org> - 2017-01-19 22:50 +0100
        Re: [PATCH 3/3] cpuidle/menu: add per cpu pm_qos_resume_latency  consideration Alex Shi <alex.shi@linaro.org> - 2017-01-20 09:40 +0100
        Re: [PATCH 3/3] cpuidle/menu: add per cpu pm_qos_resume_latency  consideration Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-01-20 12:00 +0100
          Re: [PATCH 3/3] cpuidle/menu: add per cpu pm_qos_resume_latency  consideration Alex Shi <alex.shi@linaro.org> - 2017-01-22 02:40 +0100
            Re: [PATCH 3/3] cpuidle/menu: add per cpu pm_qos_resume_latency  consideration Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-01-23 14:00 +0100
              Re: [PATCH 3/3] cpuidle/menu: add per cpu pm_qos_resume_latency  consideration Alex Shi <alex.shi@linaro.org> - 2017-01-23 16:00 +0100

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