AM2434: huge performance gap of coremark benchmark

Will Gao

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

0 Karan Saxena over 1 year ago

Will

This performance delta is unexpected, let me try to replicate this on my setup and get back to you.

Regards

Karan

+1 Kier over 1 year ago

Are you certain you ran the 'Release' build configuration? The 'Debug' configuration will degrade the performance dramatically.

0 Swargam Anil over 1 year ago in reply to Kier

Hello Will,

Yes, Kier is correct. If we run the example in Release mode you will get proper performance.

Release Mode :

Debug Mode :

Regards,

S.Anil.

0 Will Gao over 1 year ago in reply to Kier

Hi Kier,

Thanks for your answer. So it is caused by compiler optimization level?

Regards,

Will

0 Kier over 1 year ago in reply to Will Gao

Will Gao said:
So it is caused by compiler optimization level?

That's correct.

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