From: Christoph Lameter <[email protected]> Date: Thu, 26 Aug 2010 18:57:09 -0500 (CDT)
> On Thu, 26 Aug 2010, Jason Gunthorpe wrote: > >> I think doing the memcmp only in the multicast path should be >> reasonable overhead wise. > > Thats is not always possible. Here the multicast path is the > default path that is taken 99% of the time. The highest cost is bringing in that packet header's cache line, which you've already done by reading the byte and checking for 0xff. I doubt the memcmp() can possibly matter. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
