Re: [B2-devel] 64-bit BasiliskII MacOSX ?

[Robert M. <mr...@gm...>]

On 7/4/12, Alexei Svitkine <ale...@gm...> wrote:
> I was able to build and successfully run a 64-bit BasiliskII under Mac OS X
> when building with the following config:
>
> ./configure --enable-sdl-video --enable-sdl-audio --disable-vosf
> --disable-jit-compiler

Yes, that is correct. I can also build and run a 64-bit BasiliskII
without JIT. But you really want JIT, because it's 10 times faster.

My work uses a lot of floating-point math, so I use the Whetstone
benchmark to evaluate performance. Here are some figures, in thousands
of Whetstone loops per second (Kwhets/sec):

 real 20-MHz 68030 with 882: 1330 Kwhets/sec
 real 33 MHz 68040	: 5570 Kwhets/sec
 real 60 Mhz PPC 601: 22,990 Kwhets/sec
 BasiliskII 64-bit, no JIT: 90,200 K whets/sec
 real 233 Mhz PPC G3: 109,300 Kwhets/sec
 SheepShaver 32-bit, JIT enabled: 303,000 Kwhets/sec
 SheepShaver 64-bit, JIT enabled: 328,500 Kwhets/sec
 BasiliskII 32-bit, JIT enabled: 890,000 Kwhets/sec

BasiliskII with its JIT compiler is like a "5.2 GHz 68040" or a "13
GHz 68030+882". In some applications, it is significantly faster than
the best SheepShaver emulation.

By comparison, the best SheepShaver can do is a 700 MHz PowerPC G3 or
a "857-MHz PowerPC 601". Notice also the tiny difference between
32-bit and 64-bit SheepShaver.

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