After upgrading to 13-U5 poor performance

[moertl]

Hello,
after upgrading from TrueNas 12 to the latest CORE 13-U5 variant I seem to have a strange performance limit via smb.
I tried several combinations of clients (windows and Mac) Switches or even direct connection and the transfer rate seems to be limited around 77 MB/sec.
Interestingly the limit exists no matter if the file (I tried with a 10GB test file) has to be read from the HDDs (2x Seagate X18 16TB mirror) or is already cached on the NAS.

I'm using an Realtek RTL8111E nic that connects via 1000Base T (full duplex). The connection with TrueNAS 12 used the full GBit network transfer rates and the network is still able to deliver full speed between other clients.

Any hint what I can configure/adjust?

Thanks!

 

[Davvo]

Any hint what I can configure/adjust?

Dump the Realtek NIC.

Is my Realtek ethernet really that bad?

This resource was originally created by user: jgreco on the TrueNAS Community Forums Archive. Please DM this account or comment in this thread to claim it. One of the longest running issues faced here in the forums may be people who come to these forums, wanting to recycle an old PC into a NAS...

www.truenas.com

Also, in 13 a Realtek driver have been deactivated since it caused data loss, this might be the issue you are experiencing: if you are brave enough you can reactivate it fiddling with the tunables... look at the 13 release notes of each version (iirc it was U2?) to find the required informations.

 

[moertl]

OK, thanks.