Latest computer optimization tricks to uncover _windowsxp

must the spread of optimization skills be believable?

Computer performance optimization, overclocking, transformation, which is the pursuit of each DIYer user, but many users "blindly" to optimize the computer, or even through the "metamorphosis" of the transformation to improve performance, the result is only false psychological achievements of the "satisfaction", in fact, not only the performance of the upgrade, but occupy the system more resources. In addition, many magazines and websites in order to attract more readers, sometimes also published a number of tests without verification of the optimization techniques, light is useless, heavy causes the reader's computer damage. In the computer-optimized "mass movement", in order to wake up these so-called through simple optimization can make hardware performance "reinvent" friends, we have enumerated a few more typical performance optimization tricks for everyone's reference, the next time to see the optimization method may wish to think more about, to avoid fooled.

　　 One trick: ADSL bandwidth 1Mb 2Mb

　　 Deception Phenomenon

If you search the Internet casually, about ADSL optimization article really a lot. For example, modify the registry, ADSL optimization Master can improve the speed of the Internet, or even 20%, really have such a good effect?

　　 Deception Analysis 　　

is soft tuning really useful? Of course it works. But from the test we know that the effect is not obvious to modify the registry to optimize ADSL For example, enter the registry hkey_local_machinesystemcurrentcontrolsetservicesvxdmstcp, put " Defaultrcvwindow "371712" to the network bandwidth can be elevated to 2mb/s. We know that broadband providers to provide ADSL 1mb/s bandwidth speed (theoretical speed), but actually can not achieve this speed, even through the soft optimization of the lifting speed, the maximum can only be raised to close to 1Mb, how can you get 2Mb speed free? 1Mb ADSL bandwidth, no matter how you toss, it is impossible to optimize to more than 1Mb speed.

The author has carried on the comparison test before and after the revision registration. Before modifying the registry optimization, the speed of downloading a 10MB file using FlashGet to open 10 threads is 95kb/s, and the optimization only improves about 0.2K (i.e. 95.2k/s). In order to prove the soft optimization of the deception, the author also through the use of "ADSL optimization master" for optimization before and after testing (test environment for http://www.linkwan.com/gb/broadmeter/SpeedAuto/), The use of ADSL optimization master optimization before the speed of 113.12k/s, optimized after the decline of the speed of 105.04/s, it seems not only ineffective, open the software instead of taking up resources, slowing down the entire network speed.

Compared with the test speed before and after optimization is not the essence of change, speed is basically a talk. The 6kb/s gap can be counted as a test error.

　　 trick two: No open P4 level two cache 　

　 Deception Phenomenon 　

In Windows XP systems, the CPU level two cache is not turned on by default. To improve system performance, we can open it by modifying the registry, or by using software such as Windows Optimizer master. or run Registry Editor, expand the Hkey_local_machinesystemcurrentcontrolsetcontrolsessionmanagermemory Management Branch, and double-click the in the right window. Secondleveldatacace, and then fill in the pop-up window with the two-level cache capacity of the CPU used by the current computer.

　　 Deception Analysis 　　

Is that really the case? We found in Microsoft's Knowledge base "does not change the Secondleveldata

Cache entry "This sentence, the article points out that some third-party data claims that modifying the value of the Secondleveldatacache key can improve system performance is not correct. The value of the secondary cache is detected by the operating system and is completely unaffected by the Secondleveldatacache value.

The idea that Windows XP systems require users to manually open level two caching is wrong. The Windows XP system reads the CPU's level two cache value based on the hardware abstraction layer. The Secondleveldatacache value is read only when the read fails, and Secondleveldatacache's default value of 0 means that the level two cache is 256KB, rather than closing. So the CPU two-level slow exists at any time is open, users do not need to modify their own.