Linux Quick Start: one second

As we all know, unlike household appliances, the startup process takes some time. However, can the Linux Quick Start be completed within one second? Have you ever thought about it?

Back in 1957, my college age. At that time, we were using a mechanical hand-shaking computer, and there was no need to start the time at all. I remember, at that time, we began to participate in the development of M104 electronic computers (work-study ). M104 is the first generation of electronic computers in China. It uses electronic tubes and registers, which is very bulky. Today, more than 50 years have passed, and people have begun to play with Linux computers. On October 13, July 14, a foreign media report entitled "Linux achieves 1 second boot ". I am not surprised by this. The problem is what was started in one second. This article said that monavista (Embedded Linux vendor) officially announced today that it will be able to start a Linux computer in one second. What is the specific situation?

The actual situation is that MontaVista designed an embedded Linux computer, MPC5121e, for Freescale Semiconductor, to achieve a one-second Linux computer startup miracle. The trick of MontaVista is to start only the Linux kernel and the necessary drivers and services (Utilities) in one second. Experiments show that the startup time of the Moblin kernel is only 0.6 seconds, and the entire Moblin computer can be started within 2 seconds. It can be seen that it is completely possible for Google Chrome to start up within a few seconds. Currently, Linux usually starts at 20 to 20 times ~ Within 25 seconds, while Ubuntu 10.04 is scheduled to start up within 10 seconds. In the near future, a few seconds of startup for Linux computers will not be a utopia.

One second to start computers represents the arrival of a new era, as if returning to the computer-shaking age 50 years ago. I often live in the long stream of time. Today is like yesterday. The old man is so confused that today and yesterday are unclear. Yesterday morning, the Alliance's chairman called me again and criticized me in person, saying that I couldn't help myself and liked to speak freely. In the future, I will not dare to say anything about domestic software (such as Green Dam. However, sometimes it is inevitable that you go back to the past and talk freely. Maybe the time coordinate origin of my speech will move before and after. However, I sincerely thank President Lu for his kind criticism.

A piece of good news. Yesterday, I found that, internationally, 4 GB self-starting USB flash drives (with Ubuntu 9.04 installed) have been reduced, from $24.95 to $21.95. In China, a 4 gb usb flash drive requires more than 50 RMB. Unexpectedly, today, USB flash drives have become a standard carrier for Ubuntu. In my mind, self-starting USB flash drives will be everywhere and available, especially in schools. Imagine someone has a self-starting USB flash drive (or Google USB flash drive) built in Google Chrome. It hangs around his neck on weekdays (especially girls) and shakes around the street (Beijing Xidan ), not fashionable. Self-starting USB flash drives the entire software order out of order, so people's old ideas about traditional software are ruthlessly exhausted. In the era of USB flash drives, CPU processors, boards, NICS, and display cards all become peripherals, and USB flash drives automatically recognize them, activate them, and run them. By then, private software will be hidden. 1 second boot. What does it mean for self-starting USB flash drives? No matter where you are, a USB flash drive is plug-and-play. Why is it beautiful?

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