When people use computers regularly, most of them are such a process: boot, use, shutdown. Sometimes I feel that the speed of booting or shutting down is really slow, so I will find some way to set up or optimize the computer to improve the speed, so that some people are obsessed with how many users are defeated at the boot speed (this is after any more) ......
If you already use words Windows8CP version, should find the boot speed really changed a lot faster. The system home is still a rehash, in fact, the boot is really a general concept, the reason why the Win8 boot speed has a significant improvement is because Win8 default boot is a quick start. Open the control panel, enter the keyword "Power" in the search, select "Change the function of the power button", in this interface we can see that one of the shutdown settings is "Enable Quick Start (Recommended)" This is Win8 boot speed The key to being fast is. After
Why use this setting would help boot speed? This involves the concepts of cold start, sleep, hibernation, and restart. We know that when the computer is working, it is mainly the interaction between CPU, memory and hard disk. On the Windows system, one or more users are logged in, and each user runs some programs separately, as shown in the figure below.
If it is a cold start, when power is all the information in memory is lost before mean, re-detect the hardware, start Caozuoxitong (data must first be read from disk into memory) is connected to power, then the user logs into the desktop Start the corresponding service and load the self-starting program. Restarting the computer is a cold boot. Before the plug-and-play device became popular, many hardware needed to restart the computer after installation because of the need to re-detect the hardware. This method is the most primitive and the longest. After
the subsequent emergence of sleep and sleep, the two names look the same, in fact, to understand how they work it is easy to distinguish.
sleep, this refers to the state in addition to the memory remain powered, but as CPU, disk hardware is no longer such a power supply, read data from the memory when the operating state returns to wake-up before sleep. This eliminates the need to detect hardware, read data from the hard disk, etc., so the time it takes to restore the working state is the shortest. The disadvantage is that once the power is cut off during sleep, the memory data is completely lost, and the other hardware has no power supply. If it is turned on, it is equivalent to a cold start.
sleep, refers to the data in this memory state is stored in a hard disk file (Hiberfil.sys), when started again, the previously stored memory data from the hard disk to read directly In memory, this mode starts up a little slower than sleep, but it is faster than a cold boot, and does not require power when sleeping. This looks like
sleep every night sleepy, need a break, will wake up early the next day; and sleep when sleep is more like Star Trek science fiction, or is hibernating animals, is a A more inert state relative to sleep.
Windows8 fast boot is actually using the principles of dormancy, but it is different and previous sleep, shutdown Windows8 is a special kind of sleep, it will be in the system kernel memory data storage On the hard drive, the user conversation is closed. The advantage of this is that you can increase the speed when you start the system next time, and you don't have to take up a lot of hard disk space because you save a lot of user conversations.