【 Weak current college 】 computer speed-up tactics don't waste your large memory (trainers)

More memory, faster machine? I think most people answer is Yes, the prompt to 512M 256M is obvious, so take it for granted, from 512M to 1 g upgrade will obviously. But I used my personal experience to tell you, 1 g memory slower than 512M also, of course, the premise is that you do not set.

The other day I put my CompaqN410c expanded to 1 g RAM, 2 × 512Mpc133 SD, results not only extended to find machine as before, or in the same, a little card and sleep time get longer, it is in the affirmative, sleep is to copy the contents of memory to the hard disk, memory, sleep time must longer, it makes me depressed, I spent more than 500 upgrade my machine, but slower than the original. I used this software memstate real-time monitoring of my memory, discovery has been more than 600 megabytes of free memory, memory of the machine is very adequate, even many are wasted, but machine for what still so slow? so I went to google to find reasons, found that many people have found this problem, and have the authority to explain, here I put the key part excerpt out, combined with their own experience to share with you is used. Note: this change as well as the use of methods for XP system.

Modify the registry to play large memory advantages

Now open the registry editor, locate the [HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\SessionManager\MomoryManagement], in the right pane, modify the key values (notably, do a set of prerequisite is the best memory exceeds 512MB and Windows2000/XP only).

(1) "LargeSystemCache" (start a large system cache): in memory to open up a huge memory space for disk file system read-ahead. When the program is a continuous increase of data requested, Windows automatically by the system cache, so that read-ahead with maximum speed Gets the desired data. Because this system buffering enabled more of physical memory, which makes use of the program can be used to reduce the physical memory. Set its value to 1. In this way, the system cache to increase from 4MB 8MB.

(2) "SecondLevelDataCache" (enhanced CPU performance): CPU processing speed is much larger than the access speed of memory, and memory and much faster than the hard disk. This CPU and memory, memory and disk between a performance bottleneck, the previous "LargeSystemCache" in order to alleviate memory and disk bottlenecks, and the CPU in order to be able to quickly process data from memory gets also sets a buffering mechanism L2Cache (L2 cache). Adjust this value allows Windows to better cope with the CPU utilization of the caching mechanism for greater data pre-fetch hits. Recommended that this be set to 512.

(3) DisablePagingExecutive (disable paging file): sets its value to 1 (hex), this will make all programs and data mandatory qualification in physical memory to run, instead of using virtual memory. Obviously, when there is enough physical memory to complete the desired task, doing so will make the system performance is greatly improved. For memory only 64 MB of user, enable it perhaps disaster – system error until the crash frequently.

(4) "IOPageLockLimit" (custom input/output buffer size): input/output system is a device to transfer data between the microprocessor and the channel, while expanding its buffer size data transfer will be more smooth. Similarly, the specific set of dimensions depending on the size of physical memory and how to determine the running task, generally speaking, if the memory to the 64MB double-byte key value is set to hex (1MB) 400, 800 (2MB) or 1000 (4MB) 128MB memory can be set is 1000 (4MB), 2000 (8MB) or 4000 (16MB); 256 MB 4000 (16MB) or 8000 (32MB). Of course if you have more memory, can set it to 10000 (64MB) or more. When set to 0, Windows will automatically configure.