is it really a 750 Mhz Athlon running FreeBSD?

[delta trinity]

Maybe it's in the way you implemented it.
How did you code it?
I tested on AthlonXP 1800+ and it took something in the milliseconds, and 
this was with mpz_pow_ui.  I guess that it would even be faster with 
mpz_mul_2exp ( ex: mpz_mul_2exp(Result,One,300000) ).


>From: Al Kelley <blufox@cats.ucsc.edu>
>To: Torbjorn Granlund <tege@swox.com>
>CC: gmp-discuss@swox.com
>Subject: Re: is it really a 750 Mhz Athlon running FreeBSD?
>Date: Thu, 05 Dec 2002 14:52:14 -0800
>
>here's the thing:
>
>    your machine: 750MHz AMD Athlon running FreeBSD
>
>      my machine: 1.7 ghz intel p4 machine running cygwin on top
>                  of win 2000 with 512 mbytes of rambus 800 memory
>
>i am well aware that cywin is not the same as linux, or freebsd,
>but still, my machine looks respectable vis-a-vis yours.  but
>look at the times, with both machines using gmp, to compute
>the expression
>
>    2^300000 - 1
>
>here is the output from your machine:
>
>   The result of executing 2^300000 - 1 is:
>
>    computation took 0.10 ms
>    output conversion took 108.00 ms
>    997009265504475254620475559109111984747096395199303189348021
>    079441529004814191919938916876330688058970545104037536055243
>    .....
>
>your time in seconds is 0.10810 whereas my time is 6.04800.
>this implies that your machine is
>
>    55.948 times faster
>
>than my machine.  somehow, this does not seem right.
>the output, by the way, of both machines match,
>at least for the beginning and ending digits.
>[[i did not bother to check every digit,
>of which there are over 90,000.]]
>
>Torbjorn Granlund wrote:
> >
> > Al Kelley <blufox@cats.ucsc.edu> writes:
> >
> >   question:
> >      is this really a 750MHz AMD Athlon running FreeBSD?
> >      it seems way too fast for such a machine.
> >
> > Yes, it is.  Does GMP run slower for you on similar hardware?
> >
> > b> dmesg | head
> > Copyright (c) 1992-2000 The FreeBSD Project.
> > Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
> >         The Regents of the University of California. All rights 
>reserved.
> > FreeBSD 4.2-RELEASE #0: Mon Nov 20 13:02:55 GMT 2000
> >     jkh@bento.FreeBSD.org:/usr/src/sys/compile/GENERIC
> > Timecounter "i8254"  frequency 1193182 Hz
> > CPU: AMD Athlon(tm) Processor (755.29-MHz 686-class CPU)
> >   Origin = "AuthenticAMD"  Id = 0x621  Stepping = 1
> >   
>Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR>
> >   AMD Features=0xc0400000<AMIE,DSP,3DNow!>
> >
> > --
> > Torbjörn
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