Hi, folks - I am trying to verify and evaluate IB QoS support, running openSM as subnet manager. The perftest program is extended to set SL as command line options instead of default 0, and by modifying VL arbitration tables, I am expecting to see the traffic shaping can actually take place, but it did not. More details on configuration:
in opensm.opts: # QoS default options qos_high_limit 255 # disable low priority table qos_vlarb_high: 0:4,1:4,2:8,3:0, 4:0 .... # this is to give VL 2 (corresponding to SL 2) a higher weight 8 qos_sl2vl 0,1,2,3,4, ... # no changes here I think (though not verified) the Voltaire HCA we are using can support 8 data VLs. I don't have much more information to go on why qos shaping is not taking place, any suggestions? A related question is, if I modify qos setting in SM, do I need to restart SA on each hosts for it to see the changes? (I am hoping not, as I tried in the test, it doesn't seem to make a difference) Thanks for help. -- Oliver _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
