Linux takes only 2.97 seconds to start

Article title: Linux only takes 2.97 seconds to start. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

Lineo, an embedded Linux software company, said last week that they could start low-power computers within 2.97 seconds. They call this quick start software system Warp 2, of course it is not an ibm OS/2 Warp Operating System. Warp 2 consists of a boot loader, a customized Linux software package, and a software hibernation driver similar to suspend-to-disk (sleep to hard disk.

This "hibernation driver" can write the RAM snapshot information into the flash memory to form an image instead of writing it to the hard disk. it is reported that it can save 50% of RAM information. Warp 2 can save multiple system RAM snapshots to provide a clean startup environment for restart, or directly read the previously saved RAM Image at startup, which can speed up the startup.

Their testing environment is a system that uses arm CPU and runs Warp 2. of course, Warp 2 contains Linux, X display subsystem, window manager twm, and three xterm command line tools. It starts a 2.97 mb ram image and takes seconds. In the same environment, it takes 3.17 seconds to start a m ram image.