I ran the following test on the AOC-UIBQ-M2 in AS2042G-6RF A+ server. A 40Gb/s QDR’s performance should equal to 5125 MB/s. It looks like our performance is a max of 2600 MB/s. Why is that?
- Server #1-
# ifconfig ib0 192.168.100.101 netmask 255.255.255.0
# opensm
# ib_write_bw
-Server #2-
# ifconfig ib0 192.168.100.102 netmask 255.255.255.0
# ib_write_bw -a 192.168.100.101
The command used above tests the bandwidth on one direction only. For checking the full bandwidth, please test it on both direction with the following command on Server #2:
# ib_write_bw -b 192.168.100.101
Print
Share