Re: RFC: NFS over TLS stats

On 2023-10-25 10:50, Rick Macklem wrote:
> Garrett Wollman asked me via email how a server
> admin could tell what usage NFS over TLS was
> happening.
> 
> I admitted that there was nothing. I have come up
> with a patch that generates the following:
> kern.rpctls.snd_tls_msgbytes: 21508
> kern.rpctls.snd_msgbytes: 20828
> kern.rpctls.snd_tls_msgcnt: 57
> kern.rpctls.snd_msgcnt: 58
> kern.rpctls.rcv_tls_msgbytes: 12336
> kern.rpctls.rcv_msgbytes: 12072
> kern.rpctls.rcv_tls_msgcnt: 57
> kern.rpctls.rcv_msgcnt: 58
> 
> Basically counts of number of RPC messages
> and total number of bytes those messages
> result in. (Both with/without TLS.)

This is very cool.

> Does this seem reasonable or are there better
> statistics that could be generated?  Obviously
> any other suggestion might or might not be
> practical to implement.

Is there a preference of snd, and rcv, over rx, and tx? snd is also used
by sound(4), tho not for statistics.