Talking about the effect of superfetch on the operating efficiency of Win7 system

Win7 system for the old computer users, the most concern is the performance and the adequacy of memory problems, in this case for the old computer to do a service "SuperFetch" optimization test. The test platform is the Win7 RTM bit version of the old computer system, but this service function in the Win7 SP1 64-bit system and even Win8.1 still unchanged, suitable for all Win7 older computer users, including running Win8.1 but the memory is not ideal equipment.

The SuperFetch memory management mechanism allows the user's application pages to be preloaded using memory free space, avoiding the system's page calls from the hard disk as much as possible, allowing the application to open at the fastest speed, When you exit a large application, you are proactively transferring the pages that were previously forced into virtual memory into memory. After opening the SuperFetch although the memory but the program running fast, close the SuperFetch after the release of some memory but the program runs slowly, need friends can refer to under!

How to turn SuperFetch on and off:

First press the key combination (Win key +r), enter "Services.msc" in the Open Win7 system run box, find "SuperFetch" in the system service project, turn off the service and set to Disabled (vice versa).

2008 HP520 Notebook Computer

Test platform: 2008 HP520 notebook computer (HP notebook win7 system download)

cpu:t5200

• Memory: 1G

• Hard drive: 120G

• Graphics card: GMA950

• System: Win7 Ultimate 7600 16385 English version

After personal simple optimization (including defencer, search, service optimization, etc.), do not open any other, personal software, system process in 26 or so; open kill soft and other personal application software, the process is about 40.

Test application:

This test is for Photoshop, Microsoft PowerPoint, Windows Live Mail, the three most commonly used software, other small software such as QQ, Skype, 3G Internet client, temperature monitoring, itunes service process, and kill soft five processes, music player, Chrome's several processes, and so on.

Test process:

1. Close SuperFetch

First of all, open windows Media player to listen to music, backstage running QQ and mail client software, the normal use of Photoshop. Then when you turn off Photoshop and switch songs, there is a noticeable lag, and it's clear that the efficiency of all common software is significantly reduced.

Open Task Manager to see the difference between memory footprint and not closed. The first 43 processes that were not closed are probably 800-850MB memory footprint. Use memory collation to release up to 770MB occupancy. However, any program has no hysteresis, such as Open Wlmail and QQ is significantly faster than close the superfetch after a lot.

2, open SuperFetch

When the service is turned on, the Win7 system memory footprint is almost full but no program is sluggish, unless the memory footprint is excessive. When the SuperFetch is turned off, the maximum memory footprint is only 633MB. If you use memory collation, the maximum release is 550MB occupancy. However, the result is that the response efficiency of all programs is significantly reduced, whether it is qq,wlmail or other large programs run a significant hysteresis, CPU temperature significantly decreased, the normal average between 65-75c, and close superfetch can be kept in 60-70c, This means that shutting down the SuperFetch can also bring some relief to the CPU load.

Test conclusion:

Old computer 1G above the memory user must keep SuperFetch, although occupy larger memory but can guarantee the smooth operation of the program. and 1G users according to their own needs to close or open, not much activity, just online chat or simple games do not run large programs so open also no harm, open can improve performance, close to ensure that the program runs stably. 1G Memory The following users dedicated to the use of Win7, close the SuperFetch can improve the use of the experience a lot. But the final decision also depends on how you use your old computer, whether it's just for the elderly or children to watch video games on the internet, or still take care of the operation of many large software.