Slow NFS and SMB after upgrade

[robinmorgan]

Hi there,

Before the upgrade we would hit 850MB/s read and write. Now we are getting terrible writes at only 88MB/s. Any pointers would be appreciated!

Best,
Robin

 

[mjt5282]

I had some issues post upgrade to 12.0-RELEASE, turns out it was this issue : https://www.truenas.com/community/threads/snmp-agent-py-continuously-hi-cpu-use.88262/ . There is a fix included in the thread if you are affected by it. There also seems to be another problem with sysctl's spawning out of control-like.

 

[MikeyG]

@mjt5282 Did that also fix slow SMB speeds for you?

 

[robinmorgan]

Hi there, nope, this fixed neither for me but thank you.

 

[robinmorgan]

I had some issues post upgrade to 12.0-RELEASE, turns out it was this issue : https://www.truenas.com/community/threads/snmp-agent-py-continuously-hi-cpu-use.88262/ . There is a fix included in the thread if you are affected by it. There also seems to be another problem with sysctl's spawning out of control-like.

Thank you for the reply, didn't work for me unfortunately

 

[mjt5282]

@mjt5282 Did that also fix slow SMB speeds for you?

I mostly use NFS R/W and experienced slowdowns and lockups until I applied the snmp patch.