Linux/DRA745: The DSP throughput capacity is so bad

ya lin

Intellectual 840 points

Part Number: DRA745

Tool/software: Linux

My hardware is dra74x-evm

I test yuvcopytest -s 4:800x480 input.yuv -w 720 -h 480

The function VIDDEC2_process consume 13.5 millisecond.

How to enhance the throughput preformance?

over 8 years ago

0 Yordan Kamenov over 8 years ago

TI__Mastermind 42515 points

Hi,

which SDK you use?

Regards,
Yordan

0 ya lin over 8 years ago in reply to Yordan Kamenov

Intellectual 840 points

Hello, Yordan

My SDK version is automotive-dra7xx-evm-03_02_00_03

0 Yordan Kamenov over 8 years ago in reply to ya lin

TI__Mastermind 42515 points

Hi,

I have forwarded your question to an expert to comment.

Regards,
Yordan

0 Ramprasad over 8 years ago in reply to Yordan Kamenov

TI__Mastermind 30480 points

Hi Lin,
The applications yuvcopytest and copycodectest are examples to demonstrate how to invoke DSP with VIDDEC2_ DCE APIs.
Actual algorithm in DSP just does memcpy from input to output buffer.
We have not measured the performance.
Does your latency increase with the increase in width and height?

What is the exat usecase you are looking for?
Ramprasad

0 ya lin over 8 years ago in reply to Ramprasad

Intellectual 840 points

Hi ramprasad

The latency is increase with the increase in width and height.
My test case is copy 720x480 bytes, it's consume 13.5 millisecond.

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Linux/DRA745: The DSP throughput capacity is so bad