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Comment: what are you smoking? (Score 4, Interesting) 129

by Chirs (#47710017) Attached to: Operating Systems Still Matter In a Containerized World

Anything performance-sensitive isn't going to use emulation but rather paravirtualization or passthrough of physical devices. Current x86 virtualization is getting pretty good, with minimal hit to CPU-intensive code. As for I/O, you can pass through PCI devices in to the guest for pretty-much native networking performance.

Disk I/O still isn't as good as native, but it's good enough, and most enterprise systems are using ISCSI anyway to allow for efficient live migration.

Comment: limited resources are often an issue, even now (Score 1) 637

by Chirs (#47616215) Attached to: Ask Slashdot: "Real" Computer Scientists vs. Modern Curriculum?

There are plenty of places where you can't just add more memory...embedded devices in particular. Your phone is limited to 2GB of RAM, and you really don't want any one app chewing it all up. Raspberry Pi, Arduino, BeagleBone, etc. are all relatively limited in terms of resources and to use them efficiently you need to be careful.

Even on really beefy virtualization hosts with a couple hundred GB of RAM, you want to be able to dedicate as much of the resources as possible to the guests, not the host management software--so you need to be able to put strict limits on how much memory the host itself will use under any circumstances.

Comment: heard about vaccine on the radio (Score 2) 390

by Chirs (#47604077) Attached to: "Secret Serum" Used To Treat Americans With Ebola

Apparently there are a number of vaccines being developed. None of them have reached the human trials phase, but several of them have been given to people under in emergency circumstances. The problem is that it requires an official request from the person's government as well as informed consent from the patient. According to the researcher it's hard to get either of these in the area of the current outbreak.

Comment: not mutually exclusive (Score 1) 391

by Chirs (#47572513) Attached to: How long ago did you last assemble a computer?

A laptop is useful for lots of things, but when I really want to get some work done, I need screen real estate and a full keyboard and mouse.

My main compute is a laptop with a docking station. It has external keyboard, mouse, dual monitors (can connect via hdmi, displayport, vga, or dvi), audio, networking, etc.

The only downside to my laptop is that it maxes out at 16GB of RAM and the CPU is more limited than what you could put in a power-hungry desktop. But the peripherals are all supported.

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