Re: [RFC PATCH 0/2] sched: move content out of core files for load average

[Charles Wang <muming.wq@gmail.com>]

On 04/19/2013 07:43 AM, Paul Turner wrote:
> We could use a name along the lines of "load_index.c"; it calls to
> mind where we actually consume these values and (being specific) is
> less overloaded than load_avg.
Hmm... How about using "load_machine.c" "load_cpu.c" and "load_entity.c"?

Thanks,
Charles
> On Thu, Apr 18, 2013 at 4:13 PM, Paul Gortmaker
> <paul.gortmaker@windriver.com> wrote:
>> [Re: [RFC PATCH 0/2] sched: move content out of core files for load average] On 18/04/2013 (Thu 23:06) Rakib Mullick wrote:
>>
>>> On Thu, Apr 18, 2013 at 9:54 PM, Paul Gortmaker
>>> <paul.gortmaker@windriver.com> wrote:
>>>> On 13-04-18 07:14 AM, Peter Zijlstra wrote:
>>>>> On Mon, 2013-04-15 at 11:33 +0200, Ingo Molnar wrote:
>>>>>> * Paul Gortmaker <paul.gortmaker@windriver.com> wrote:
>>>>>>
>>>>>>> Recent activity has had a focus on moving functionally related blocks of stuff
>>>>>>> out of sched/core.c into stand-alone files.  The code relating to load average
>>>>>>> calculations has grown significantly enough recently to warrant placing it in a
>>>>>>> separate file.
>>>>>>>
>>>>>>> Here we do that, and in doing so, we shed ~20k of code from sched/core.c (~10%).
>>>>>>>
>>>>>>> A couple small static functions in the core sched.h header were also localized
>>>>>>> to their singular user in sched/fair.c at the same time, with the goal to also
>>>>>>> reduce the amount of "broadcast" content in that sched.h file.
>>>>>> Nice!
>>>>>>
>>>>>> Peter, is this (and the naming of the new file) fine with you too?
>>>>> Yes and no.. that is I do like the change, but I don't like the
>>>>> filename. We have _waaaay_ too many different things we call load_avg.
>>>>>
>>>>> That said, I'm having a somewhat hard time coming up with a coherent
>>>>> alternative :/
>>>> Several of the relocated functions start their name with "calc_load..."
>>>> Does "calc_load.c" sound any better?
>>>>
>>> How about sched_load.c ?
>> No, that doesn't work since it duplicates the path info in the file
>> name -- something that none of the other kernel/sched/*.c files do.
>> Do a "ls -1 kernel/sched" to see what I mean if it is not clear.
>>
>> I honestly didn't spend a lot of time thinking about the file name.
>> I chose load_avg.c since it had a parallel to the /proc/loadavg that
>> linux has had since the early 1990s.  I have no real attachment
>> to that name, but at the same time I'd like to avoid having name
>> choice become a bikeshedding event...
>>
>> Thanks,
>> Paul.
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