On Thu, Jul 03, 2014 at 10:28:19AM -0700, Adrian Chadd wrote: > Which NIC?
I am can't find again this forum posts (last time I find -- year ago). May be this http://hardforum.com/showthread.php?t=1662769 In this case -- Mellanox QDR ConnectX2 Infiniband. > On 3 July 2014 03:29, Slawa Olhovchenkov <s...@zxy.spb.ru> wrote: > > On Thu, Jul 03, 2014 at 10:35:55AM +0100, Nikolay Denev wrote: > > > >> >> I found this white paper useful in understanding how this works : > >> >> http://www.cisco.com/c/en/us/products/collateral/switches/nexus-3000-series-switches/white_paper_c11-726674.pdf > >> > > >> > In real world "Reality is quite different than it actually is". > >> > http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6500-series-switches/white_paper_c11-696669.html > >> > > >> > See "Packet Path Theory of Operation. Ingress Mode". > >> > > >> > >> Interesting, however this seems like implementation specific detail, > >> and not limitation of native 40Gbit ethernet. > > > > I see some perfomance tests on solaris and 40G link. > > In this test perfomance limited about 10Gbit per flow. > > May be I found links to this test. > > > > May be some NIC's implementation specific detail also limited > > performance per flow. > > > >> Still, it's something that one must be aware of (esp when dealing with > >> Cisco gear :) ) > >> > >> I wonder why they are not doing something like this : > >> http://blog.ipspace.net/2011/04/brocade-vcs-fabric-has-almost-perfect.html > >> > >> --Nikolay > > _______________________________________________ > > freebsd-current@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-current > > To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org" _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
