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Comment Re:Idiots (Score 1) 221

It's not about the number of cores, it's about the expense of the context switches when servicing the interrupt. The x86 architecture doesn't have register banks the way the old Sparc chips did. Every context switch the registers have to be dumped to ram and the new contents loaded from ram. That's an expensive operation.

Comment Re:Either of the poles woulc cause this effect (Score 1) 496

If you start a mile north of the South Pole, walk a mile south, then you cannot walk west, so it still fails.

Also, the North Pole isn't ice-free all year long. (I've not been keeping up with how much (if it has happened yet) it is ice-free during a year, but it's certainly not the whole year. Yet.)

Comment Cakewalk (Score 2) 384

Get a switch which supports VLANs, 1 vlan on each port and the trunk on your laptop. Then run the mfg's software inside virtual machines, each of which has one of the vlans connected to its virtual ethernet, using the mfg's IP address. Now you can run all the updates in parallel.

The better solution is for the mfg to give you software and a configuration that does not suck. But if you're stuck with it, the above will work just fine.

Comment Re:Idiots (Score 1) 221

They mostly don't forward until the entire packet is received. That can't work unless the sending interface is the same or lower speed and the hardware for it (hardware fast path at high data rates) tends to be brittle.

Linux does not do this. The ethernet cards Linux uses do not do this. They work with complete packets. In the case of OSes on PC architectures, the kernel may not even get an interrupt until the card has multiple packets to deliver.

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