10gb network only getting 2.5gb on windows

[TeleFragger]

@TeleFragger

Before you go spending more $$$$ have you tried bypassing the switch using a fiber coupler and running P2P? If it's not the optics or the fiber it could be the switch causing the slower speeds. Could be a bad port or a backplane issue.

i dont mind because i needed more cards, so figured Mellanox too but yes, I am going to P2P the cards, going to Linux Boot, etc... more testing to be done...

 

[TeleFragger]

Ok did p2p... assigned totally different ip and still got the same results.
Gonna need to try linux (even though I dont use it lol)...
and waiting on the mellanox

 

[TeleFragger]

ok, ran parted magic on a box.... ran iperf3 back to my winderz box and received...

C:\incoming\iperf-3.1.3-win64>iperf3.exe -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from 192.168.1.246, port 50654
[  5] local 192.168.1.237 port 5201 connected to 192.168.1.246 port 50660
[ ID] Interval           Transfer     Bandwidth
[  5]   0.00-1.00   sec   108 MBytes   906 Mbits/sec
[  5]   1.00-2.00   sec   112 MBytes   941 Mbits/sec
[  5]   2.00-3.00   sec   112 MBytes   941 Mbits/sec
[  5]   3.00-4.00   sec   112 MBytes   941 Mbits/sec
[  5]   4.00-5.00   sec   112 MBytes   941 Mbits/sec
[  5]   5.00-6.00   sec   112 MBytes   942 Mbits/sec
[  5]   6.00-7.00   sec   112 MBytes   941 Mbits/sec
[  5]   7.00-8.00   sec   112 MBytes   941 Mbits/sec
[  5]   8.00-9.00   sec   112 MBytes   941 Mbits/sec
[  5]   9.00-10.00  sec   112 MBytes   941 Mbits/sec
[  5]  10.00-10.04  sec  4.28 MBytes   945 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  5]   0.00-10.04  sec  0.00 Bytes  0.00 bits/sec                  sender
[  5]   0.00-10.04  sec  1.10 GBytes   938 Mbits/sec                  receiver

now to boot up a second box on parted magic...

 

[TeleFragger]

Confirmed.. Winderz (well maybe intel drivers) is the issue!!!!

 

[TeleFragger]

Ok so it turns out that I got the mellanox cards in and yes my server 2022 and win10 (plex) are still getting 9.4gb/s speeds in iperf...
I put one in my win11 box and it is not getting 2.5gb.. it is getting 5gb.. so that is better but still not superb.

i think i got it...

I have an MSI z690-A DDR4 board. It states it has 3x pcie x16 slots.. so i have video card closest to CPU.... then i did farthest.. i just moved it closer to GPU and BOOM...




wonder if i have the patience to test the intel cards again... not really.. so most likely wont hah.. too much other stuff to do.