AM2434: huge performance gap of coremark benchmark

Part Number: AM2434

Hi experts, 

There are huge difference between the actual test results and the output in user guide: 

- following fig shows the actual test result log: 

- There is big gap to the result in user guide: 

Try to modify the .stack section allocation in memory configuration window, but the result is same. Please check and give your comments. 

Regards, 

Will