Running ntttcp.exe per http://www.mellanox.com/related-docs/prod_software/Performance_Tuning_Guide_for_Mellanox_Network_Adapters.pdf
Throughput(MB/s) = 1531.362
Results are similar with file copy or other network test tools.
ibqueryerrors does exist, but no -f switch on windows it seems. This is the base output:
PS C:\> ibqueryerrors
Errors for "IGA-S2D3"
GUID 0x8f104039a4e3d port 1: [PortXmitWait == 1]
GUID 0x8f104039a4e3e port 2: [PortXmitWait == 541647202]
Errors for 0x8f10500203b28 "Mellanox 4036 # 4036-SW1"
GUID 0x8f10500203b28 port ALL: [PortXmitWait == 86266712]
GUID 0x8f10500203b28 port 1: [PortXmitWait == 33430055]
GUID 0x8f10500203b28 port 34: [PortXmitWait == 52836657]
Errors for 0x8f10500109552 "Mellanox 4036 # 4036-SW2"
GUID 0x8f10500109552 port ALL: [PortXmitWait == 2344169726]
GUID 0x8f10500109552 port 0: [PortXmitWait == 261]
GUID 0x8f10500109552 port 34: [PortXmitWait == 2344169465]
Errors for "IGA-S2D1"
GUID 0x2c903004e445b port 1: [PortXmitWait == 59]
## Summary: 5 nodes checked, 4 bad nodes found
## 80 ports checked, 9 ports have errors beyond threshold