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Re: Compilation performance comparison of 3.5.0 and TreeSSA trees on MICO sources as requested in: [tree-ssa] Merge status 2004-05-03
On Wed, May 05, 2004 at 12:00:37PM -0700, Matt Austern wrote:
> On May 5, 2004, at 11:49 AM, Laurent GUERBY wrote:
> >
> >Nobody will notice 44 minutes vs 40 minutes of full app compilation,
> >everyone in a edit/compile one file/link full app/debug cycle will
> >notice immediately a 50% reduction in link time.
>
> I'm with Joe. We're in the state we're in now because too many
> people have said that "nobody will notice" yet another performance
> degradation. The argument that nobody will notice a small
> regression is especially dangerous because it's true: nobody does
> ever notice a 1% regression. But if we let in dozens of 1%
> regressions (which we have), then people start noticing.
Exactly.
http://gcc.gnu.org/ml/gcc-patches/2001-03/msg01466.html
--
Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it.
- Brian W. Kernighan, in a plea for clear, straightforward code