On 02/08/13 02:42, Cedric BAIL wrote:
> Hello,
>
> On Thu, Aug 1, 2013 at 2:03 PM, Jérémy Zurcher <jer...@asynk.ch> wrote:
>> what is the purpose of these hooks again,
>
> Improving our tooling. Right now there is at least a few tools that
> can use them :
> - espion, that does trace every call to elementary and efl to rebuild
> a fake application without the application logic. Very useful for
> extracting only the EFL part of an application during debugging. That
> should make life easier for people that report bugs in there
> application and we don't have the mean to build them due to
> dependencies or something else.
>
> - a performance tracer that will be able to tell where we loose time
> and how we spend our time from event input to the next frame on
> screen. Could also be linked with allocation statistic like memprof.
>
> - clouseau could use them to do live update of its tree.
>
> This is just a few set of idea, I am sure that people can come with
> other use of it. Maybe there is also use for them by an IDE. Right now
> those tool where using LD_PRELOAD on eo_do with some introspection
> information.
>
>> these where my numbers before and now
>>
>> simple inc() - 99999 calls
>> calls/eo_do() EO [ns]/call - EO2 [ns]/call - EO2 [ns]/call
>> #1 20 25 29
>> #3 11 15 17
>> #5 9 13 15
>> #7 9 12 14
>>
>> overriden inc - 99999 calls
>> calls/eo_do() EO [ns]/call - EO2 [ns]/call - EO2 [ns/call
>> #1 46 50 55
>> #3 38 37 42
>> #5 37 36 39
>> #7 36 34 38
>
> Yes, I saw the slow down. I am wondering if we need the
> eo2_hook_*do_{pre,post}. I think we could continue to have that
> feature by using LD_PRELOAD on eo2_*do_{start,end}. That should lower
> the unitary cost of eo_do.
>
> I am also wondering why the overriden case get a 4ns/call increase
> when the simple one get a 2ns/call increase.
>
>> could we shut them down on release ??
>
> I would prefer not as this make it impossible to do any analysis.
>
>> class functions and object functions differs from the param list:
>> _CLASS_FUNC have (const Eo_Class *klass, ...)
>> _FUNC have (Eo *objid, void *obj_data, ...)
>
> Yup, saw that, but I am still wondering what is the use case for class
> function.
It's in my TODO, and already started talking about it with Jeremy to
make classes normal objects. This will make things much simpler and
better and hopefully reduce a lot of code.
--
Tom.
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