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stmiller
Tux's lil' helper
Tux's lil' helper


Joined: 28 Feb 2006
Posts: 119

PostPosted: Mon Dec 04, 2006 6:03 am    Post subject: Geekbench [64bit questions solved] Reply with quote

Geekbench with Gentoo on the same machine scores better than geekbench OS X:

Gentoo:

Code:

System Information
  Geekbench Version:         Geekbench 2006 (build 250)
  Geekbench Platform:        Linux PPC (32-bit)
  Geekbench Compiler:        GCC 4.0.2 20051125 (Red Hat 4.0.2-8)
  OS:                        Linux 2.6.18-gentoo-r3 ppc64
  Model:                     Power Mac G5 (June 2004)
  Motherboard:               PowerMac7,3 MacRISC4 Power Macintosh
  Processor:                 PPC970FX, altivec supported
  Processor ID:              PPC970FX, altivec supported
  Logical Processor Count:   2
  Physical Processor Count:  1
  Processor Frequency:       2000 MHz
  Bus Frequency:             0 MHz
  Memory:                    1456 MB

[snip]

Overall Score:   152.3




10.4.8:

Code:
System Information
  Geekbench Version:         Geekbench 2006 (build 242)
  Geekbench Platform:        Mac OS X PPC (64-bit)
  Geekbench Compiler:        GCC 4.0.1 (Apple Computer, Inc. build
5363)
  OS:                        Mac OS X (Darwin 8.8.0)
  Model:                     Power Mac G5 (June 2004)
  Motherboard:               PowerMac7,3
  Processor:                 PowerPC G5 (970)
  Processor ID:              18, 100
  Logical Processor Count:   2
  Physical Processor Count:  2
  Processor Frequency:       2000 MHz
  Bus Frequency:             1000 MHz
  Memory:                    1536 MB

[snip]

Overall Score:   141.2




I have a 32bitUL/ppc64 system. I cannot execute the provided geekbench 64bit PPC Linux binary, and the 32bit version appears to only picks up one CPU? (though the scores are close). Is there anyway I could possibly execute the 64bit binary? Something like $ linux64 ____ ? Maybe I should contact the geekbench folks and ask.


Last edited by stmiller on Tue Dec 05, 2006 5:05 pm; edited 2 times in total
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jaeger63
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Joined: 08 Apr 2006
Posts: 38
Location: Gatineau, Quebec

PostPosted: Tue Dec 05, 2006 12:16 am    Post subject: Reply with quote

Quote:
I have a 32bitUL/ppc64 system. I cannot execute the provided geekbench 64bit PPC Linux binary

Same here. I thought we could run 64 bit binaries by running linux64, though I had never tried it. Perhaps we're missing something we need to install?

Anyway, these benchmarks are endlessly fascinating, even if it's not clear what they're showing us. Some numbers:
2.0GHz G5 (running 32-bit Userland Gentoo) - 116.7

3.06 GHz Intel Celeron D running Windows XP - 107.4

633 MHz Celeron running Gentoo Linux - 25.1

1.73GHz Pentium M running FreeBSD 6.1 - 121.5

Running most normal applications the G5 is faster than my Pentium M laptop, so it's interesting to see it do so well on the benchmark.
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stmiller
Tux's lil' helper
Tux's lil' helper


Joined: 28 Feb 2006
Posts: 119

PostPosted: Tue Dec 05, 2006 12:25 am    Post subject: Reply with quote

I emailed the geekbench guy. He's going to look into why the 64bit binary won't execute.

Quote:
> Hi the 32bit ppc linux binary does not pick up both CPUs on my
> Powermac G5.

Interesting! Could you send me the output of

cat /proc/cpuinfo

That should help me figure out what's going wrong.

> FWIW I'm running a 32bitUL/ppc64 release of Gentoo. I cannot execute
> the ppc64 binary of geekbench. I'm not sure if I'm suppose to be able
> to, being in a 32bitUL/64bit kernel. But do you know if it is possible
> to execute it? With $ linux64 ____ something?

What's the error message you get when you try and execute the 64-bit
version of Geekbench?


From my reply:

Quote:
When trying to execute the 64bit version, it spits this back:

stmiller@stmiller ~/Geekbench2006-LinuxPPC64 $ ./geekbench
bash: ./geekbench: No such file or directory
stmiller@stmiller ~/Geekbench2006-LinuxPPC64 $


So we'll see what he says. Interesting benchmark. And nice score on the Pentium M, btw. I was thinking about a used Thinkpad, I think I'll consider the Pentium M models.
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stmiller
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Joined: 28 Feb 2006
Posts: 119

PostPosted: Tue Dec 05, 2006 3:52 pm    Post subject: Reply with quote

After chatting with JoseJX and the geekbenck person, it seems that in a 32bitUL you cannot execute a 64bit binary. That makes sense. The geekbench guy said he thought the 64bit version would have given a more informative output than $ ./geekbench: No such file or directory. He's going to investigate. But there you go.
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jaeger63
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Joined: 08 Apr 2006
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Location: Gatineau, Quebec

PostPosted: Tue Dec 05, 2006 11:14 pm    Post subject: Reply with quote

Yes, it appears the feature we're looking for is multilib. There is some support for 32-bit binaries in a 64-bit userland on PPC (see package emul-linux-ppc-glibc), but not the reverse.

I assume you could set up a full 64-bit environment and chroot to it, but that seems rather pointless.

It looks like the multilib functionality is more mature on amd64/x86 than on ppc.
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