Difference between sleep and hibernate
Sleep vs hibernate:
Energy is an essential source which is needed for conducting practically any task in the world today. Sleep and hibernate are two terms which are thus related to power which are also options that are offered in the windows operating system. However, both these options are commonly utilized functions which are used at different instances. Because of the fact that certain factors such as their location of saving data, booting times and such matters vary largely, the difference between these two largely used options should be known separately.
What is sleep?
The option of sleep is also known as ‘standby’ in Windows system or S3 in ACPI. Here, the power supply to non-essential and non-critical components is withheld and most of the system operations are shutdown and stopped. Once in this mode, the system can be woken up almost immediately as the whole system is in standby mode and the data in its physical memory is kept in internal memory, which enables quick access. However, in sleep mode, the power must not be cut off where in such a case, the system will have to be restarted like a newly booted computer itself.
What is hibernate?
Hibernate is also a power saving option which is offered by the windows operating system and is known to save the data in physical memory to the hard disk drive and power off the computer. In this case, the system will create a file which has been named hiberfil.sys which has the same file size as the amount of system memory on the local disk. And when the computer needs to be reused, the system will load back its last state at the last hibernation. The option of hibernating is known to save power in its maximum efficiency and in this process, no electricity will be consumed by the system.
What is the difference between hibernate and sleep?
Sleep and hibernate are power saving options which are offered by the windows operating system and both functions can be achieved by pressing down the power button in the computer or by closing the lid of a laptop. And yet, both these methods have their own ways and means of storing data and saving energy which vary largely from one another. While in the sleep option, the system will go in to a low power consuming mode where all the data in the physical memory or the RAM is saved in the internal memory, in the hibernate option, all the data which is present in the RAM is saved in a hard disk file which is renamed as hiberfil.sys. This can be found in the root of Drive C after which the computer will shut down.
Sleep mode is known to take a lesser amount of time to resume work than the hibernation mode which takes more time to retrieve the information that is found in the hard drive which is harder to access. And yet in sleep mode, the memory that is stored internally can be much easily accessed. Also, the option of hibernation is advantageous in cases when power is cut off or the batteries are running out of power as the data will remain the same, before the system was put to hibernation mode. In contrast, in sleep mode, if the power had been cut off, the system will have to restart like a newly booted computer which has just started from power off state. However, the hibernate option is known to be much more energy efficient than the sleep mode as in this scenario, no amount of power is consumed during a state of hibernation. However in sleep mode, the system runs on low energy. And yet, hibernation, if used frequently, can cause fragmentation of file which the users will need to defragment the volume which stores the hibernation file frequently. In the sleep option, no such complications will occur.
Therefore, considering the above factors, sleep is the option that one must opt for if the user is away from the computer for a small amount of time whereas hibernate is the ideal option if the user plans to be away from the computer for a longer period of time such as shutting down work for the end of the day.