Thread: Easy Debian Fremantle Beta Testing
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sulu is offline sulu
2012-03-05 , 22:19
Posts: 915 | Thanked: 3,209 times | Joined on Jan 2011 @ Germany
#2629
I repeated nbench under Wheezy armel which worked fine.
Then I tried it under armhf again but changed the compiler to build nbench. First I tried with gcc-4.4 which resulted in a segmentation fault after the FP EMULATION test instead of gcc-4.6's Illegal instruction.
Then I tried nbench compiled with gcc-4.5 which even completed the IDEA test but then rebooted the phone. So it seems something is terribly unstable here. Either it's the compiler under armhf or some component in the underlying FP hardware/Maemo software.
Can somebody who has any other armhf-compatible device please try if nbench completes reliably if compiled with any of Debian Wheezy's armhf gccs?

Just for completeness, this is the gcc-4.5 result as far as it worked:
Code:
\h:\w$ ./nbench

BYTEmark* Native Mode Benchmark ver. 2 (10/95)
Index-split by Andrew D. Balsa (11/97)
Linux/Unix* port by Uwe F. Mayer (12/96,11/97)

TEST                : Iterations/sec.  : Old Index   : New Index
                    :                  : Pentium 90* : AMD K6/233*
--------------------:------------------:-------------:------------
NUMERIC SORT        :          415.04  :      10.64  :       3.50
STRING SORT         :           45.57  :      20.36  :       3.15
BITFIELD            :      1.1854e+08  :      20.33  :       4.25
FP EMULATION        :          51.798  :      24.86  :       5.74
FOURIER             :          1461.6  :       1.66  :       0.93
ASSIGNMENT          :          5.8777  :      22.37  :       5.80
IDEA                :          1206.9  :      18.46  :       5.48
 

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