Re: improving nfs client & server performance

On Mon, Oct 21, 2024 at 03:52:12PM -0700, Rick Macklem wrote:

(stuff)

Hi Rick I tried the various things suggested and did notice a performance 
improvement. What I'm seeing though right now is the following, in a 
different context [1]

login[some_pid] Getting pipebuf resource limit: Invalid argument

[1] context is root creating a tar on a nfs mount. The tar is huge,
     over a Tb, as it's backing up homedirs [2]. It seems to be running ok
     though. For the mment. But I'm not seeing anything remotely 
     approaching maximums in netstat -m, and thought with root doing 
     the backup its resources would be pretty much unlimited.
     It's not spamming the console though.

[2] The SMR hd is showing signs it's ill. Slow everything.
     Trying to move all the data off there before a (cold) reboot.
     Thing is with these SMRs (I've had two) it seems nothing much 
     happens in the bad blocks sense. it just gets *very* *slow*.
     It's zfs, but single disk, 8Tb.
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