Using igb and/or ixgbe on a reasonably powered server requires 1K mbuf clusters per MSIX vector, that's how many are in a ring. Either driver will configure 8 queues on a system with that many or more cores, so 8K clusters per port...
My test engineer has a system with 2 igb ports, and 2 10G ixgbe, this is hardly heavy duty, and yet this exceeds the default mbuf pool on the installed kernel (1024 + maxusers * 64). Now, this can be immediately fixed by a sysadmin after that first boot, but it does result in the second driver that gets started to complain about inadequate buffers. I think the default calculation is dated and should be changed, but am not sure the best way, so are there suggestions/opinions about this, and might we get it fixed before 8.3 is baked? Cheers, Jack _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
