OSX 10.2.8 and G5

I recently downloaded the Bochs-2.1.pre1 source release and to try out. 
 The environment
I use is as follows:

        Mac G5, 2 GHz, dual processor
         GCC 3.3

The only configure option i added was --with-carbon so I could get the 
osx version.

My first compile did not work.   When the make process got to line 2044 
in main.cc it complained
about not having enough arguments passed to it.  I checked it out and 
checked the man pages
and made the following change:

         changed line 2044 in main.cc
            from getcwd(cwd)
            to getwd(cwd)

        reason: getcwd requires two argument, the character array cwd, and
                a return value for length of array

I ran make again and everything went fine.  There were a few warnings 
but at this point I will ignore
them unless some problem comes up in running bochs.

I also set the show ips in config.h to 1 so I could get a measure of 
how fast things were running.
Well, all the available images booted up and appear to function.  My 
acid test is to see how
win2000 works.

Started running the install for win2000.  Never got passed the loading 
files part because it was taking
to long.   I checked the ips number and saw it was around the 
neighborhood of 3.0 mips.   MMMMM...
not real impressive.  So I began playing with the options.   Several 
builds later I ended up with the
following settings:

Following are the compiler flags that worked (i.e., bochs didn't bomb 
when run)

CFLAGS="-O3 -mcpu=G5 -mtune=G5 -finline-functions -falign-loops=16 
-falign-jumps=16
                   -falign-functions=16 -falign-labels=16 
-falign-loops-max-skip=15 -falign-jumps-max-skip=15
                   -fprefetch-loop-arrays -fmove-all-movables"
CXXFLAGS="-O3 -mcpu=G5 -mtune=G5 -finline-functions -falign-loops=16 
-falign-jumps=16
                        -falign-functions=16 -falign-labels=16 
-falign-loops-max-skip=15
                        -falign-jumps-max-skip=15 
-fprefetch-loop-arrays -fmove-all-movables"

The following were the configure flags

./configure --prefix=/Users/woodman/projects/bochs-2.1.pre1/bochs_test 
--with-carbon
                   --enable-cpu-level=5 --enable-repeat-speedups 
--enable-host-specific-asms
                   --enable-icache --enable-guest2host-tlb --disable-mmx

The resulst of these settings during the win2000 install gave me a 
resulting mips around 12 to 13.
Pretty dramatic.  (still haven't completely installed win2000).

I guess the next step is to start muxing with code.  Any suggestions 
where to start looking looking
for the best speed gais to start?  Any tools I can use to profile where 
bochs is spending most of
it's time?

Thanks!



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