Hello, 2009/1/30 Martin Egge <[email protected]>: > Host cards are: > Broadcom Corporation NetXtreme BCM5751 Gigabit Ethernet PCI Express > The switch is: > Cisco/Linksys SRW 2048 Gigabit Switch
Ah, my old friends from Broadcom. On the Windows side, we've never been able to get reliable performance with Broadcom on-board chips. > >> To verify, please remove the swap barrier. If that solves it, setting >> the 'TCP Ack Frequency' to one might help - I don't know how that's >> done on Linux. > > Removing the swap barrier lines from my config file did not solve it. The only > things that happens is that there is only one long red bar in the stats [3] > now. You can try tweaking your TCP parameters - I strongly suspect the ack frequency. In the interest of your sanity I suggest you try Intel GigE cards. I've spend weeks looking at Wireshark traces, and while some delays can be solved by the right parameters, Broadcom cards delayed packets sometimes up to 200ms when collisions occurred. Since I am no networking specialist, I've never completely figured out what's going on. In the future we might implement connections based on other protocols in Equalizer, like UDP. Cheers, Stefan. _______________________________________________ eq-dev mailing list [email protected] http://www.equalizergraphics.com/cgi-bin/mailman/listinfo/eq-dev http://www.equalizergraphics.com
