Re: For loop benchmarks between Octave versions

[Rik]

On 06/15/2014 10:29 AM, Ben Abbott wrote:
> On Jun 15, 2014, at 1:23 PM, PrasannaKumar Muralidharan <address@hidden> 
> wrote:
>
>> Is there a way to reduce the compile time? Every make takes around 30
>> minutes in my machine. Every make is compiling the full code from
>> scratch.
>>
>> Possible reasons may be 1) there are lot of changes 2) running
>> configure scripts creates a newmake file everytime which causes the
>> make to recompile full code.
>>
>> Thanks and Regards,
>> PrasannaKumar
> You don't need to run "configure" each time you want to compile.  Just run 
> "make".
>
> If configure is running automatically, what are your configure options?  
> Specifically did you include "--disable-dependency-tracking" as an option to 
> configure?
>
> Ben
>
>
Also, I use ccache which helps a lot.  For a version I have built most of
before, such as the development tip, the compile time is usually reduced to
about 3 minutes.  If I have to compile everything from scratch then it is,
indeed, about 30 minutes.  Unfortunately bisecting means going back to lots
of versions of code which aren't in the cache so you get less benefit.

--Rik