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Old 06-25-2010, 08:47 AM   #1
Dave1024
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Registered: Jun 2010
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Beegle Board Performence


Hi,

I am using beegle board for execute my code block.

As you all know beegle use the TI OMAP 35XX architecture !

My issue is i am writing the code in 2 different way

One is using C and another is using Neon Intrinsics and Parallise the code

and I am using the following tool chain and switches for compilation

CC=arm-none-linux-gnueabi-gcc

CORTEX=-march=armv7-a -mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp -flax-vector-conversions

Really the issue is both code working fine. But the time to execute the code almost same.

But i use the same source in Other profilers there is some significan improvement in the cycle count (ie :: Time Difference)

The beegle board configuration is Advanced SIMD NEON enabled and use the angstrom linux as the OS

Where i failed to get a better performence .?

Please answer !

The NEON intrinsics are getting at the following link ::
http://gcc.gnu.org/onlinedocs/gcc/AR...ntrinsics.html

Rgds
Dave
 
Old 06-25-2010, 05:19 PM   #2
jefro
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Could be how the tools you have relate to those systems. Some tools tend to be faster since they have been more well tuned to some system or set of systems.
 
Old 06-28-2010, 08:43 AM   #3
Dave1024
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Quote:
Originally Posted by jefro View Post
Could be how the tools you have relate to those systems. Some tools tend to be faster since they have been more well tuned to some system or set of systems.
I need to know how i can enable the SIMD NEON core of Beegle Board
 
  


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