Re: [bug #40639] GNU Make with profiling information

[Eddy Petrișor]

> On Tue Nov 19 22:29:22 2013, Reinier Post wrote:
>> Follow-up Comment #1, bug #40639 (project make):
>> 
>> I have created a cleaned up rebased branch that contains only changes for the
>> profiling feature so it can be easier to review.
>> 
>> https://github.com/eddyp/make-profiler/tree/profile-rebase
>> 
>> Please note this branch will be rebased. Use 'git pull --rebase' if you need
>> to resync.
> 
> Looks very useful!
> 
> Can't this functionality be provided by a wrapper $SHELL?
> Sure, it's an extra exec(),
> but it will keep the make code base simpler.

I'm not sure if I understand what you mean. Do you mean wrapping all target 
invokes in a $SHELL?
If that's the case, you don't get the actual/real-time measurement, and that 
might skew your profiling information.

I have some build systems that can take easily over 12 hours to do a full build 
(several thousands of elfs in recursive
make calls - I know that's bad, I am working on it), so any extra time waste 
just for the measurement can mean
significant delays in getting the results.

If you mean something else, please clarify.


Please cc me, I am not subscribed.

-- 
Regards,
EddyP
=============================================
"Imagination is more important than knowledge" A.Einstein

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