linux-kernel - Re: [RFC PATCH v2 1/8] cpuidle: menu: extract prediction functionality

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Message-ID: <b9dc3eea-cd55-e2a5-71b7-f3c0a548e92b@linux.intel.com>
Date:   Mon, 16 Oct 2017 10:46:20 +0800
From:   "Li, Aubrey" <aubrey.li@...ux.intel.com>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Aubrey Li <aubrey.li@...el.com>
Cc:     tglx@...utronix.de, peterz@...radead.org, len.brown@...el.com,
        ak@...ux.intel.com, tim.c.chen@...ux.intel.com,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v2 1/8] cpuidle: menu: extract prediction
 functionality

On 2017/10/14 8:26, Rafael J. Wysocki wrote:
> On Saturday, September 30, 2017 9:20:27 AM CEST Aubrey Li wrote:
>> There are several factors in the menu governor to predict the next
>> idle interval:
>> - the next timer
>> - the recent idle interval history
>> - the corrected idle interval pattern
>> These factors are common enough to be extracted to be one function.
>>
>> Signed-off-by: Aubrey Li <aubrey.li@...ux.intel.com>
> 
> This patch alone would break things AFAICS, because it removes code from
> menu_select() without a replacement (and menu_predict() is never called
> just yet).
> 
> Please always do your best to ensure that things will work after *every*
> patch in a series.

okay, I'll correct this in the next version.

Thanks,
-Aubrey