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Pitanje
SuperUser čitač kosinix želi znati zašto se računala ne mogu potpuno dizati odmah:
Computers have been around for quite some time. So what is stopping us from making computers boot instantly like regular home appliances and other devices? Is it even possible? I know there are ‘Hibernate’ and ‘Sleep’ options, but those aren’t really ‘real boot’.
Zašto se računala ne mogu potpuno pokrenuti odmah? S boljim, moćnijim hardverom koji je sada dostupan i stalnim poboljšanjem operativnih sustava, mislili bi da se računala u potpunosti mogu dizati mnogo brže nego danas.
Odgovor
SuperKorisni suradnik ckhan ima odgovor za nas:
Computers are state machines. The problem is that the initial condition the computer starts with (which is, literally, instant) is not very useful to you and me. (Even after the first electron moves.)
What is useful to you and me is many millions of steps further down that ‘state machine’. The easiest way for developers to describe that state is to define it in programs, and those programs will always take more than ‘zero time’ to run.
Now you might say: “Fine, but can’t you cache the ‘first-usable-state’ and start there?” And you could, and it does. It’s (roughly) what resume from ‘Sleep’ is, and which is why it’s not very fair, I think, to “exclude” resume from a discussion of improving boot times.
Dok se vrijeme čizma dulje vrijeme definitivno poboljšalo u posljednjih nekoliko godina i nastavit će se poboljšavati kako vrijeme prolazi, uvijek će biti puno "iza zaslona" svaki put kada pokrenete svoje omiljeno računalo.
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