Modify the Win7 registry to play a large memory advantage

Now, open Registry Editor and find [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control \session manager\momorymanagement], Modify the key values in the right pane (note that it is best to set the memory to be more than 512MB and limited to Windows 2000/XP).

(1) "LargeSystemCache" (Start a large system cache): A large memory space in memory for pre-read operations on the disk file system. When data is continuously requested by the program, Windows is automatically pre-read through the system cache, allowing the program to get the data you want with the fastest speed. Because enabling this system buffer consumes more physical memory, the available physical memory that can be exploited by the program is reduced. Set its value to 1. This way, the system cache is increased from 4MB to 8MB.

(2) "Secondleveldatacache" (Improve CPU Performance): CPU processing speed is much larger than the memory access speed, and memory is much faster than the hard disk. In this way, between the CPU and memory, memory and disk have a bottleneck effect on performance, the front "LargeSystemCache" is designed to alleviate the memory and disk bottlenecks, and the CPU in order to quickly get processing data from memory also set a buffer mechanism L2 Cache ( Second-level cache). Adjusting this key value allows Windows to better match the CPU's use of this caching mechanism for higher data pre-read hit ratios. It is recommended that you set it to 512.

(3) Disablepagingexecutive (Disable paging file): Change its value to 1 (hexadecimal), which will make all programs and data mandatory to run in physical memory instead of using virtual memory. Obviously, when there is enough physical memory to complete the required tasks, this will greatly improve the performance of the system.

(4) "Iopagelocklimit" (custom input/output buffer size): The input/output system is the channel through which data is transmitted between the device and the microprocessor, and the data is delivered more smoothly when the buffer size is enlarged. Similarly, the size of the specific settings depends on the size of the physical memory and how much to run the task to decide, if there is more memory, it can be set to 10000 (64MB) or even more. When set to 0 o'clock, Windows is automatically configured. After setting these, reboot the system. In fact, the effect of modifying these is not very obvious, but there is always a psychological comfort, the following is to make you feel the quality of the leap of the place.

The larger the memory, the faster the machine? I think most people's answer is yes, from 512MB to 1GB of Ascension is obvious, so take it for granted, from 1GB to 2GB ascension will be obvious. But I tell you with my own experience that big memory may be slower than small memory, of course, if you don't set anything.

The other day I extended my Compaq n410c to 1GB of memory, 2X512MB, and the result expanded to find that the machine not only had the same card as the original, but also had a longer sleep time. This is sure, sleep is the memory of things copied to the hard disk, the larger the memory, sleep time is certainly longer, which makes me very depressed, I spent money to upgrade my machine, instead of the original slower. I use memstate this software real-time monitoring my memory situation, found that there are more than 600 megabytes of free memory, which indicates that the machine's memory is very sufficient, and even many are wasted, but why is the machine still so slow? So I went to Google to find out why, It turns out that a lot of people have found this problem, and has already had the authoritative explanation, here I extracts the key part, and unifies own use experience to share with everybody. Note: The modifications and methods used here are for the XP system.

Here to introduce to you a software, RAMDisk Plus, this software is to partition the memory as a part of the use of disk partitions, you can transfer some temporary folders to this partition, such as the temporary folder of IE, which will greatly improve the speed of your web browsing. The transmission speed of memory and the transmission speed of the hard disk gap I think we all know, with the memory of a part of the hard disk equivalent to the addition of a million-turn hard disk, the speed of the increase imaginable. This is my personal experience, I put the 100MB in my memory as a partition, and then put the temporary folder of IE to the above, restart, after the opening of the webpage is a moment, even in the internet is very good in the middle of the night, there is not so fast, it seems many times the speed is not the bottleneck, the machine is the bottleneck Ah, Especially those with more pictures, need to cache the page, you can try. After this 100MB memory, my normal available memory is still above 500MB, fortunately RAMDisk Plus can add more than one partition, I can draw a few more partitions, and then put some of the usual programs in, so it must be much faster to run.

But remember, after the memory power is lost, but fortunately, Ramdisk Plus provides the option to automatically save the shutdown, that is, when the virtual hard disk partition can be saved to the actual hard disk partition in your designated place, and then power on the load back, Sleep with the truth, just like this will cause the shutdown time and boot time becomes very long, so I recommend only on the virtual hard disk partition to put temporary files, anyway, the temporary file is to be emptied sooner or later, put on the RAMDisk also save the trouble of manual emptying.

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Modify the Win7 registry to play a large memory advantage