I just tried that on my laptop (2.4 GHz Intel Core 2 Duo, OS X 10.5)
and it took 74 seconds for sage-3.2, 73 seconds for sage-4.6.alpha0.
Since that difference is probably just noise, things haven't changed.

-M. Hampton

On Sep 16, 3:10 pm, Greg Marks <gtma...@gmail.com> wrote:
> Out of curiosity...
>
> Athttp://sagemath.org/tour-benchmarks.htmlthe CPU time
> given for factorization of the integer  2^512 - 1  with SAGE
> version 4.1.1 is 92.29 sec.  I just tried this with SAGE
> version 4.5.2, running under 64-bit Linux on a laptop with
> an Intel Core 2 Duo P8600 CPU @ 2.40 GHz and 2.9 GiB RAM,
> and the same calculation required only 31.39 sec. CPU time.
> (The same factorization, on the same computer, using Maple 14
> required 185.43 sec., incidentally.  I don't have a recent
> version of Mathematica to compare.)
>
> The documentation says SAGE calls PARI for this calculation.
> Is the threefold improvement in speed due to any change in
> the factorization algorithm between SAGE 4.1.1 and SAGE 4.5.2?
> Or is it due to a difference in hardware, or something else?
>
> Best regards,
> Greg Marks
>
>     ------------------------------------------------
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