08-24-2020 09:22 AM
What is a reasonable fastest continuous DMA Target to Host data transfer rate I can run?
08-24-2020 01:13 PM - edited 08-24-2020 01:13 PM
Depends on chassis, controller, and operating system configuration.
With a 7976 I've seen 900 MB/sec but this was limited by the disk. The 7972 is similar.
The shipping example "High Throughput Streaming.lvproj" is able to run tests up to 2 GB/sec.
Do you have your hardware? You can run this example.
08-25-2020 08:34 AM - edited 08-25-2020 08:35 AM
Thanks for the response....I'll take a look at "High Throughput Streaming.lvproj" once I have my hardware setup.
At this point of my design I am trying to figure out what is a reasonable data rate
Hardware this will run on is
I need to stream from one of the FlexRIOs back to the controller (which then sends it to the Ethernet Module)
If I don't compress I need to pass 32bit words at 20MHz......while other bus operations are happening on the other 5 FlexRIO