Messages in this thread | | | Date | Sat, 23 Feb 2002 16:00:07 +0100 | From | Martin Dalecki <> | Subject | Re: gcc-2.95.3 vs gcc-3.0.4 |
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Andrew Morton wrote: > Larry McVoy wrote: > >>Try 2.72, it's almost twice as fast as 2.95 for builds. For BK, at least, >>we don't see any benefit from the slower compiler, the code runs the same >>either way. >> >> > > Amen. > > I want 2.7.2.3 back, but it was the name:value struct initialiser > bug which killed that off. 2.91.66 isn't much slower than 2.7.x, > and it's what I use. > > "almost twice as fast"? That means that 2.7.2 vs 3.x is getting > up to a 3x difference. Does anyone know why?
Yes. Basically the reason is a missconception what the compiler should try to optimize in GCC.
> > [ Of course, if you can wink-in the object file from someone else, > it's not a problem. (tum, tee tum...) ] > > - > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > > >
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