Explanation of sleep, hibernation, standby, and mixed sleep in Windows system

Sometimes you need to leave the computer, and then restart the computer after shutting down. It will wait a long time. If it is not a waste of energy, I heard that the Windows system has functions such as sleep and hibernation. What are they going on? Sleep and sleep, literally different

Sometimes you need to leave the computer, restart the computer after shutting down and wait a long time, if it is not a waste of energy, I heard that Windows system has sleep, hibernation and other functions, they are What happened?

sleep and sleep, literally speaking not very different, so I often make a lot of people are wondering, What is the difference in the end these two states, their advantages and disadvantages as follows: & ldquo; sleep & rdquo; is a Windows system to provide In an energy-saving state, when the user needs to leave the computer, he can select this command in the “Shutdown” menu. In this way, the system saves the data being processed into the memory, and all devices except the memory stop supplying power. When the user returns to the computer, by moving the mouse or pressing any key, the system can be woken up and the power supply can be restarted for other devices. In just a few seconds, the computer can be restored to its pre-departure state. The characteristic of this state is that the wake-up speed is fast (usually only takes a few seconds), but the memory cannot be powered off, otherwise the data will be lost. “Hibernate” is a power-saving state that Microsoft designed for mobile computers, so it can't be seen in the “Shutdown” menu on the desktop. This state is to store all the data in the memory to a specific space on the hard disk, and then cut off all power supply. Later, when the user presses the power button again, the memory data temporarily stored in the hard disk will be restored to the memory, and the state before leaving can be returned. Therefore, the characteristic of this state is that it can be restored to the state before the power failure, and the power can be completely cut off, but the recovery time is long and requires a large hard disk space. “Standby” is the system to save the current state in memory, and then exit the system, at this time the power consumption is reduced, to maintain the minimum operation of the CPU, memory and hard disk; press the power on the computer to activate the system, the computer quickly from the memory The system enters the system before entering the standby state. This is the fastest way to reboot, but the system is not really closed. It is suitable for leaving for a short time. PS: Sometimes, whenever it enters the standby state, the temperature will exceed 60 degrees Celsius. The reason is that the cooling fan is turned off when the CPU enters the standby state. If there is no BIOS in the BIOS, the CPU does not turn off the fan when it enters the standby state. “Control Panel" Power Management”Settings, set "Power Usage Plan" to "Always open", and "set the system to wait" set to “ never & rdquo;. "Hybrid sleep" (hiber-sleep) is a new sleep/hibernation method for desktop computers. The technique refers to sleep and hibernate simultaneously, that is, writing information to the hiberfil.sys file on the hard disk before sleeping. If the external power supply is not terminated, sleep, such as termination of external power supply, then read hiberfil.sys to recover when booting again, it can be said that the advantages of both are integrated: it has anti-power-down function compared to sleep, and is compared to sleep. Starts faster without terminating external power. This item can be adjusted in the advanced power settings: You can change the highlighted highlighter option in the image below to enable Hybrid Sleep: In the default installed NT6 kernel system, you can also find the “sleep” item by clicking the Start menu. <;Sleep" has the same meaning as above, and there may be two cases that change as the settings for mixed sleep change. If you disable hibernation with the command line, the sleep of the start menu is the traditional standby, there is no mixed sleep function and setting items.