On 12/03/2024 15:39, Rob Kossler via USRP-users wrote:
Hi Zack,
I would not count on equal performance between saving to a RAM file
system versus allocating your own buffers, but I don't know the
reason. I think it is worth a try to configure as large a RAM file
system as you can and run rx_samples_to_file (which will not create
large RAM buffers). Plus, this is a pretty easy test to run.
Writing to RAM via a RAM filesystem still incurs the machinations of the
OS kernel similar to what it would do for ANY filesystem,
so it cannot be as fast as simply moving bytes into a big buffer in
your application...
However, it's awfully convenient, since it has all the same semantics
(other than persistence) of a filesystem on persistent
media.
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