Programmable Devices
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Urgent: DMA

Altera_Forum
Honored Contributor II
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Hello. I have done all the setting and instantiation of my DMA system. I would like to ask how to check the CPU usage of my DE2 Board with and without DMA. I would like to measure the effect of using DMA and without DMA on CPU usage. This is implemented on Altera DE2 Board and the cpu is the nios2 processor.  

 

Spec:  

Altera DE2 Board 

 

I try to move a data from one place to another using and without using DMA and measure the CPU usage to prove that with DMA, CPU usage is lower when transferring data because DMA will take control, not the CPU. 

 

Thanks.
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Altera_Forum
Honored Contributor II
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how's Performance Counter? 

see attached.
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