Unaligned memory access penalty

Hi,

Is their any data which is a measurement of MCPS on beagle board when
unaligned memory acces is enabled and the code accesses unaligned
memory.?

Actually algined memory access gives a better performance comapred to
unaligned memory access. So i wold like to know if there is any
measurement of a MCPS hit when unaligned memory access is done.

May be an example of mp3 or aac deocder can be used.

Awaiting reply.

Thanks and Regards,
Pulsar

kochhar.abhinav@gmail.com writes:

Hi,

Is their any data which is a measurement of MCPS on beagle board when
unaligned memory acces is enabled and the code accesses unaligned
memory.?

Actually algined memory access gives a better performance comapred to
unaligned memory access. So i wold like to know if there is any
measurement of a MCPS hit when unaligned memory access is done.

The penalty for an unaligned access on Cortex-A8 is one cycle.

Thanks a lot.