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From: Michael S <already5chosen@yahoo.com>
Newsgroups: comp.lang.c
Subject: Re: question about linker
Date: Thu, 5 Dec 2024 22:30:55 +0200
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On Thu, 05 Dec 2024 15:43:39 GMT
scott@slp53.sl.home (Scott Lurndal) wrote:

> >
> >Sounds like you can benefit both from faster compiler and from faster
> >make utility.  
> 
> Perhaps, but 28 seconds isn't really that bad. Particularly compared
> with the systems I used forty years ago :-)
> 

It is pretty bad. Breaks flow of thought.

>  <snip linker>
> 
> >
> >BTW, can you experiment with -O0 ? What speedup does it provide over
> >-O2 in the project as big as yours?  
> 
> We typically use -O3, except on a couple of source files which
> take over 6 minutes of CPU time to compile, each, when -O3 is
> specified.
>

For project of that size, I'd say that there is 80% chance that result
of compilation with -O3 is slower than -O2.