On Thu, 11 Feb 2016, Dave Täht wrote: > Someone asked me recently what I thought of the dpdk. I said: > "It's a great way to heat datacenters". Still, there's momentum it > seems, to move more stuff into userspace. Especially now that Intel CPUs seem to be able to push a lot of PPS compared to what they could before. A lot more. What one has to take into account is that this tech is most likely going to be deployed on servers with 10GE NICs or even 25/40/100GE, and they are most likely going to be connected to a small buffer datacenter switch which will do FIFO on extremely small shared buffer memory (we're talking small fractions of a millisecond of buffer at 10GE speed), and usually lots of these servers will be behind oversubscribed interconnect links between switches. A completely different use case would of course be if someone started to create midrange enterprise routers with 1GE/10GE ports using this technology, then it would of course make a lot of sense to have proper AQM. I have no idea what kind of performance one can expect out of a low power Intel CPU that might fit into one of these... -- Mikael Abrahamsson email: swmike@swm.pp.se