Intel x520-da2 1.3 Gb/s please help

[serverworks]

Hi I will try to make this as clear as possible, and thanks in advance for any help. I have 2 Nas4free boxes 1 with intel x520-da2 10 Gb ethernet the other with 2 mellanox connectx2 10Gb ethernet. all are direct attached copper connected directly without switch. The intel one will recieve at 9.7 Gb/sec either real transfer or iperf but will only send at 1.3 Gb/sec to the windows machine either real or iperf. I have set jumbo frames at 9000 on Nas4free, 9014 on windows 10 client. I dont understand how this can be only one way problem. please help?

I have added these 2 images to show the speeds.

 

[whitey]

LOL, sorry buddy it's windows, there are a litany of TCP tunables that 'may' make things better for you but getting those from a *nix head isn't gonna help you. I know I have seen them on here before and have had the pleasure of laughing at my fellow M$ sys-admins at work when they go off tuning chimney and other stack tunables.

Others on here should be able to get ya sorted out or at least performing quite a bit better.

 

[dswartz]

I thought nas4free was based on bsd?

 

[whitey]

Sounded like his receive side was win10 based. I'd look there first

 

[dswartz]

Rereading it, I'm now more confused about his setup. I guess he can clarify

 

[serverworks]

Rereading it, I'm now more confused about his setup. I guess he can clarify

I will try to clear up the confusion, The problem connection is between a nas4free (freebsd 10.2) and windows 10 machine. windows 10 machine has desktop asus gaming board core I7 4790k 32 gifs of ram, Nas4free unit has supermicro x10 pentium g3258 and 32 gigs ecc if that helps.

 

[Caleb]

I will try to clear up the confusion, The problem connection is between a nas4free (freebsd 10.2) and windows 10 machine. windows 10 machine has desktop asus gaming board core I7 4790k 32 gifs of ram, Nas4free unit has supermicro x10 pentium g3258 and 32 gigs ecc if that helps.

In my homelab, I had originally planned to set up a storage spaces Server 2012/ 2016 server to serve iSCSI MPIO to my Proxmox cluster. However, I ran into the same problem many months ago. I do not remember the specifics, but one direction worked great, but reversing the direction resulted in pure agony due to slow speeds. I could never figure it out.. so if you do, please share!

I ended up dropping the shared storage idea on a centralized NAS and decided to go with proxmox cluster + ceph. Having set it up yet though...

 

[manxam]

Funny, I have the same issue that I could never resolve.. Win 2012R2 to OmniOS ~9GB. OmniOS to Win 2012R2 ~5.8GB. I messed around with a slew of TCP settings in Windows but could never get it higher than this.