Hey Rob and Marcus,

Thanks for the responses! I have a basic understanding of linux, but am not 
very experienced. I tried the following to create the RAM filesystem:

```
sudo mount -t tmpfs -o size=8G tmpfs /mnt/tmpfs/
```

```
sudo mount -t ramfs -o size=8G ramfs /mnt/ramfs/
```

And ran the rx_samples_to_file, once with --file /mnt/tmpfs/test.bin, and once 
with --file /mnt/ramfs/test.bin, both times still getting o’s for overruns.

By my calculations, at \~500 M complex samples per second, each complex sample 
4 bytes (defaulting to short for I and Q), that means just 1 second of 
capturing equates to 2 GB of data. My system has 64 GB of RAM. Am I creating 
the RAM filesystem correctly? Am I using it correctly?
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