<<On Wed, 29 Apr 2015 09:30:34 +0200, Mark Schouten <m...@tuxis.nl> said:
> I'm not really (or really not) comfortable with hacking and recompiling > stuff. I'd rather not change anything in the kernel. So would it help in > my case to lower my MTU from 9000 to 4000? If I understand correctly, > this would need to allocate chunks of 4k, which is far more logical from > a memory point of view? If you're using one of the drivers that has this problem, then yes, keeping your layer-2 MTU/MRU below 4096 will probably cause it to use 4k (page-sized) clusters instead, which are perfectly safe. As a side note, at least on the hardware I have to support, Infiniband is limited to 4k MTU -- so I have one "jumbo" network with 4k frames (that's bridged to IB) and one with 9k frames (that everything else uses). -GAWollman _______________________________________________ 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"
