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Re: C compile time
> > Can you please try -O2 -funit-at-a-time?
>
> Sure:
>
> results with mainline (compiling cc1 from gcc 3.2.3):
> -O2 -O2 -funit... -O3 -fno-unit... -O3
> 483.84 558.45 595.36 704.59
> +15.4% +18.3%
>
> In other words, the compile time increase is
> comparable, though not equal...
Hmm, so we have combination of these two problems...
In case it is easy for you to do so, can you also compare -O2
-funit-at-a-time -fno-inline-functions and -O2 -fno-inline-functions.
That will elliminate the inlining once optimization that should be
guilty for majority of the slowdown. In case it remains it is likely
memory overhead - how much memory do you have in your box?
Thanks for testing it!
Honza
>
> Dara
>
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