As far as i know, flow director is Intel terminology it addresses both RSS and RFS. I think FreeBSD implementation is RFS.
Luigi, you touched upon SW de-multiplexer, i would like to know why it's necessary. let say i have 82599 ixgbe driver (RSS enabled)configured with 5 tuple hash. My application reads from netmap queue 0-7(1-8), for testing purpose i will define tuples in such a way that i know for sure that each packet will be filtered to specific hw queue(0-7). Now is it safe to assume that in netmap mode in user space i will receive the packet as in ixgbe hw queue? Michio, reason i asked for performance values http://arxiv.org/ftp/arxiv/papers/1106/1106.0443.pdf I would like to test the accuracy of RFS with HW RSS in netmap mode.. cheers, r2r On Fri, Sep 27, 2013 at 2:59 AM, hiren panchasara < hiren.panchas...@gmail.com> wrote: > > > > On Thu, Sep 26, 2013 at 2:27 PM, chintu hetam <rometor...@gmail.com>wrote: > >> Hiren, >> >> https://www.kernel.org/doc/Documentation/networking/scaling.txt must >> read to understand nuances of each of this features. None of this >> techniques are used for mostly none other than performance reasons. >> > > Thanks for the link. > So, RFS (Receive Flow Steering) is equivalent to "flow director" mentioned > in FreeBSD's ixgbe drivers? > >> >> Michio, personally i am interested to know performance results in netmap >> mode with RFS patch you just mentioned. >> > Takuya/Luigi might have some numbers. > > Thanks, > Hiren > > <skip> > > _______________________________________________ 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"
