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Comment: Re:ANDROID != LINUX (Score 2) 487

by elfprince13 (#46394361) Attached to: Android Beats iOS As the Top Tablet OS
You're missing the point. Saying that a kernel is or isn't successful because it's distributed with a different userland than usual is (a) just wrong, and (b) a completely different sort of claim than that a particular software distribution is or isn't successful because various components have been integrated elsewhere.

Comment: Re:What makes an OS realtime? (Score 4, Informative) 64

Did you bother looking it up?

A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application requests. It must be able to process data as it comes in, typically without buffering delays. Processing time requirements (including any OS delay) are measured in tenths of seconds or shorter. A key characteristic of an RTOS is the level of its consistency concerning the amount of time it takes to accept and complete an application's task; the variability is jitter.[1] A hard real-time operating system has less jitter than a soft real-time operating system. The chief design goal is not high throughput, but rather a guarantee of a soft or hard performance category. An RTOS that can usually or generally meet a deadline is a soft real-time OS, but if it can meet a deadline deterministically it is a hard real-time OS.[2] An RTOS has an advanced algorithm for scheduling. Scheduler flexibility enables a wider, computer-system orchestration of process priorities, but a real-time OS is more frequently dedicated to a narrow set of applications. Key factors in a real-time OS are minimal interrupt latency and minimal thread switching latency; a real-time OS is valued more for how quickly or how predictably it can respond than for the amount of work it can perform in a given period of time.[3]

Two can Live as Cheaply as One for Half as Long. -- Howard Kandel

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