SMB Write Speed

[mf808]

Hi all,

 

first time unraid user here and have been working with my new unraid server.

2x 1TB nvme in btrfs raid 1 running as cache.

My goal was to saturate the 10G Nic link on the server. Core I5-9400 64gb ram

 

NIC Intel x520 dual SFP+ only one is used.

I removed the bonds, as only 1 NIC is active on the machine.

 

I am having issues with writing to the unraid server.  It gives me about ~350MB-450Mb/s

Reading from the Server is at 10Gbit speed, which is what I was looking for.

 

Does anyone have any hints what I need to tweak or configure to see the write speeds go up? I have seen in a previous post that near 1GB/s are possible.

 

Thanks for you help!

 

PS:

with MTU 9000 enabled, no difference

 

 

Edited April 22, 2020 by mf808

[mf808]

Found the issue:

I had set the "CPU Scaling Governor" in the tweak plugin to "Power Save".

 

Set it to Performance and I have the speed I was expecting.

 

Followup question:

Does the CPU Scaling Governor affect only the CPU power states or does it also affect other PCI devices, eg. the NIC and NVME?