The impact of SuperFetch on Win7 old computer

The concept of SuperFetch

The Superfetch memory management mechanism preloads the application pages that users may use with memory free space; avoids system calls from the hard disk as much as possible; makes the application the fastest Degree is turned on; it will not be slow to respond due to the computer being idle for a long time; after exiting the large application, the page that was previously forced to transfer to virtual memory will be actively reloaded into the memory.

I believe that many old computer users are also due to XP's parting, and they have to go to Win7 and above. For the old computer users, the most concerned about the performance and memory is enough, here for the old computer and do a optimization test for the service "superfetch".

The platform for this test is the old computer of Win7 RTM bit version system, but this service function has not been changed in Win7 SP1 or even Win8.1, suitable for all old computer users above Win7, including A device that runs Win8.1 but does not have enough memory.

Opening and closing methods:

Press the combination key (WIN key +R), enter "lds;services.msc" in the open running box, in the system service project Find “superfetch”, set it to disable after turning off the service (and vice versa).

Test Platform: 2008 HP520 Laptop

• CPU:T5200

• Memory: 1G

• Hard Disk: 120G

• Graphics: GMA950

• System: Win7 Ultimate 7600 16385 English

After personal simple optimization (including offdefence, search, service optimization, etc.), no Open any other, personal software, system process is around 26; open kill soft and other personal applications, the process is around 40.

Test Application:

This test is the three most commonly used softwares, Photoshop, Microsoft PowerPoint, and Windows Live Mail. Other small software such as QQ, Skype, 3G Internet client, temperature monitoring , iTUNES service process and killing five processes, music player, chrome several processes.

Testing process:

1, close SuperFetch

First open Windows Media Player to listen to music, run QQ and mail client in the background, and use Photoshop normally. When Photoshop was closed and the songs were switched, there was a noticeable sluggishness, and it was obvious that the performance of all commonly used software was significantly reduced.

Open the Task Manager to see the difference between memory usage and non-shutdown. The first 43 processes are not closed, and the memory usage is about 800-850MB. Use memory to organize up to 770MB of occupancy. However, any program has no lag, such as opening wlmail and QQ is significantly faster than turning off superfetch.

2, open superfetch

When the service is turned on, the memory usage of the Win7 system is almost full, but any program has no sluggishness unless the memory is oversized.

When you turn off superfetch, the maximum memory usage is only 633MB. If you use memory to organize, the maximum release is 550MB. However, the consequence is that the response efficiency of all programs is significantly reduced. Whether it is QQ, WLMAIL or other large programs, there is a significant delay in the operation of the CPU. The CPU temperature drops significantly. The normal average is between 65-75C, and after superfetch is turned off. Can be maintained at 60-70C, which means that turning off superfetch can also bring some relief to CPU load.

Test conclusion:

The old computer 1G or more memory users must keep SuperFetch, although it takes up more memory, but can guarantee the smooth running of the program. And 1G users turn off or turn on according to their own needs, there are not many activities, just online chat or simple games do not run large programs, then open it anyway, open can improve performance, shut down can ensure the program runs stably. When 1G memory is used by users below, when you use Win7, turning off superfetch can improve the experience. But the final decision depends on how you use your old computer, whether it is just for the elderly or children to watch video games, or to manage the operation of many large software.

The above is to test the memory usage in Win7 old computer by turning SuperFetch on and off. It is recommended to enable SuperFetch after the test. Thank you for reading, I hope to help you, please continue to pay attention to this, we will try to share more excellent articles.