Altera Cyclone V: UDP data transfer without packet loss

Hi Daixiwen,

Thank you for your valuable comments.

Please find answers for your queries below:-

1. Which period are you using for the system timer?

[Lullaby] >> Scheduler is triggered every HZ quantum. HZ is by default set as 100 in Linux configuration [Default value for ARM]. Hence scheduler gets ticked every 10ms.

I am not sure if it is a best practice to set it to 1ms. If scheduler is ticked every 1ms, that would also be an overhead, right?

2. Do you really need Linux on your target?

[Lullaby] >> As I said, we are doing a Proof of concept. We consider Linux as the first choice because it is open source, community support, availability of wide range of drivers, stacks and is proven.

If we find we are not able to manage this data rate deterministic, we would definitely think of any RTOS options. But what is your option on using RT patch on Linux? Do you know any useful links which we can refer for enabling RT in Altera Linux kernel 4.9.

As I am new to Altera community, I am not sure which forum I need to post the query on Altera provided Linux. Please guide me.

Looking forward to hear from you soon. We will update the results of our experiments.

Thank you,

Lullaby