[Qst] How to start two VIs (from different process) with same IP filter on a single solarflare NIC without large delay (several ms)?

[Kaiyang-Chen]

I want two copies of identical data from my single NIC. My current solution is having two VIs with identical filter from two processes to read the data. Although all data can be read in this way, the time lag is obvious, sometimes around 10ms. Is there any better way or mode to do this kind of data copying maybe in the hardware level or other possible higher efficiency solution?

[andresa-xilinx]

Hi Kaiyang - Given the timescale you're pointing out (10 ms), the simplest solution is using Onload and enabling stack sharing between the two apps. See the following link for further information: https://docs.amd.com/r/en-US/ug1586-onload-user/Multicast-Replication.

We are happy to guide you in more detail if you raise a case with NIC Application Engineering team. I'd recommend raising a case by sending an email to support-nic@amd.com. You'd need to register through very simple steps that we'll include in our first email.