> digging a little more, I see now that if I disable msi-x, the > performance gets to a fixed value of about 620MB/s with connectx > which is the lower range that msi-x gives me...
setting the irq daemon off, I see that if I set the cpu affinity of the netperf process to be as the one of the mlx4 irq I get fixed performance of 650 MB/s If I set it to different CPU, then eventually I get 480MB/s constantly and 620MB/s constantly if is a different core on the same CPU... HCA MB/s msi_x irqdaemon netperf affinity ======================================================================= ConnectX-ConnectX 620 0 on none ConnectX-ConnectX 620-850 1 on none ConnectX-ConnectX 650 1 off same as irq ConnectX-ConnectX 620 1 off different core ConnectX-ConnectX 480 1 off different cpu Or. _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
