That was an unfortunate typo on my part, I meant to write "isn't excessively difficult..."
Some real world examples of specific models of CPU + motherboard + PCI-E NIC combinations with wattage figures at idle load, average load and maximal load would be useful for comparison purposes. On Fri, Mar 5, 2021 at 8:09 AM Tom Hill <t...@ninjabadger.net> wrote: > On 05/03/2021 00:26, Eric Kuhnke wrote: > > A great deal of this discussion could be resolved by the use of a $20 > > in-line 120VAC watt meter [1] plugged into something as simple as a $500 > > 1U server with some of the DPDK-enabled network cards connected to its > > PCI-E bus, running DANOS. > > I'm fairly sure Etienne-Victor's email made specific reference to > wattage measurements in both [2] and [3]. It would be fair to assume > that the authors of those (IEEE) papers understood that you could > measure wattage at the wall socket, before embarking on a paper > regarding power efficiency. > > > Characterizing the idle load, average usage load, and absolute maximum > > wattage load of an x86-64 platform is excessively difficult or > complicated. > > It really isn't, particularly when the high figure is 400% of the low > figure. You don't need milliwatt precision to see that your CPU is > wasting power while not actually forwarding any packets. > > -- > Tom >