Re: scaling linux-based router hardware recommendations

[Colin Johnston <colinj () gt86car org uk>]

qnx os based router works well with powerpc, could be pushed far higher load than intel based chips

Colin


> > That's the problem though.
> >
> > Everyone has presentations for the most part, very few actual tools
> > that 
> > end users can just use exist.
> >
> > On 1/28/2015 午後 08:02, Robert Bays wrote:
> > > > On Jan 27, 2015, at 8:31 AM, Jim Shankland <nanog () shankland org>
> > wrote:
> > > > My expertise, such as it ever was, is a bit stale at this point, and
> > my
> > > > figures might be a little off. But I think the general principle
> > > > applies: think about the minimum number of x86 instructions, and the
> > > > minimum number of main memory accesses, to inspect a packet header,
> > do a
> > > > routing table lookup, and enqueue the packet on an outbound
> > interface. I
> > > > can't see that ever getting reduced to the point where a generic
> > server
> > > > can handle 40-byte packets at line rate (for that matter, "line
> > rate" is
> > > > increasing a lot faster than "speed of generic server" these days).
> > > Using DPDK it’s possible to do everything stated and achieve 10Gbps
> > line rate at 64byte packets on multiple interfaces simultaneously.  Add
> > ACLs to the test setup and you can reach significant portions of 10Gbps
> > at 64byte packets and full line rate at 128bytes.
> > > Check out Venky Venkatesan’s presentation at the last DPDK Summit for
> > interesting information on pps/CPU cycles and some of the things that
> > can be done to optimize forwarding in a generic processor environment.
> > >
> > http://www.slideshare.net/jstleger/6-dpdk-summit-2014-intel-presentation-venky-venkatesan
> > >
> >
> >
> > !DSPAM:54c8de34274511264773590!
>
> -- 
> Sent from my Android device with K-9 Mail. Please excuse my brevity.