Classic computer optimization techniques tricks to reveal the_XP system basics
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Classic computer optimization techniques tricks to reveal the

  
circulated optimization skills must be credible?

Computer performance optimization, overclocking, transformation, this is what every DIYER user is pursuing, but many users are "blind" to optimize the computer, even through the "metamorphic" transformation to improve performance, the result is changed What came back was only the hypocritical psychological achievement "satisfaction". In fact, the performance not only did not improve, but occupied more resources of the system. In addition, in order to attract more readers, many magazines and websites sometimes publish some optimization techniques that have not been tested and tested. It is useless, and the reader's computer is damaged. In the computer-optimized "mass movement", the scheme of not reversing frequently occurs frequently. In order to awaken these friends who can make the hardware performance "reborn" through simple optimization, we enumerate several typical performance optimization tricks. For your reference, when you see the optimization method next time, think about it, in case you are fooled. One

trick: ADSL 1Mb of bandwidth becomes 2Mb

phenomenon

trick if you just search online, articles about ADSL optimization is really a lot. For example, modify the registry, ADSL optimization master
can increase the speed of the Internet, even as much as 20%, really have such a good effect?

analysis software optimization tricks

really work? Of course useful. But from the test we know, the effect is not obvious, to modify the registry optimization ADSL as an example, enter the registry HKEY_LOCAL_MacHINE\\System\\CurrentControlSet\\Services\\VxD\\MSTCP, change the "DefaultRcvWindow" to "371712" to increase the network bandwidth To 2Mb/s. We know that broadband providers provide ADSL 1Mb/s bandwidth speed (theoretical speed), but in fact can not reach this speed, even if the speed is improved by soft optimization, the maximum can only be increased to close to 1Mb, how can I get 2Mb for free? What about speed? With 1Mb of ADSL bandwidth, no matter how you toss it, it is impossible to optimize it to more than 1Mb.

registered before and after modification were compared tests. Before modifying the registry optimization, use Flash
Get to open 10 threads to download a 10MB file at a speed of 95KB/s, and after optimization, it only increased by about 0.2K (that is, 95.2K/S). In order to confirm the soft optimization of the trick, the author also used the "ADSL optimization master
" to optimize the pre- and post-test (test environment is http://www.linkwan.com/gb/broadmeter/SpeedAuto/
), using ADSL optimization master
The speed before optimization is 113.12K/S (as shown in Figure 1), the optimized speed is reduced to 105.04/S, it seems that not only has no effect, the software is turned on. Instead, it takes up resources and slows down the entire network. Comparative tests before and after optimization

speed is not essentially changed, the basic speed is nonsense. The 6KB/s gap can be counted as a test error.

Figure 1


Figure 2
trick two: no open P4 secondary cache

trick phenomenon

Windows XP system In the default state, the CPU L2 cache is not turned on. In order to improve system performance, we can open it by modifying the registry or by using software such as "WindowsOptimization Master
". Or run the registry editor, expand the HKEY_LOCAL_MacHINE\\System\\CurrentControlSet\\Control\\SessionManager\\Memory Management branch, double-click "SecondLevelDataCace" in the right window, and then directly fill in the secondary level of the CPU used by the current computer in the pop-up window. The cache capacity is fine.

trick analysis

fact is it really? We found the word "Do not change the SecondLevelData

Cache entry" in Microsoft's knowledge base. The article pointed out that some third-party data claimed that modifying the value of the SecondLevelDataCache key can improve the system performance is not correct. The value of the L2 cache is detected by the operating system and is completely unaffected by the SecondLevelDataCache value.

so-called Windows XP systems require the user to manually open the secondary cache this statement is wrong. The Windows XP system reads the secondary cache value of the CPU based on the hardware abstraction layer. The value of SecondLevelDataCache is read only when the read fails, and the default value of 0 of SecondLevelDataCache represents the meaning of the second level cache is 256KB instead of closing. Therefore, the secondary cache of the CPU is turned on at any time, and the user does not need to modify it.


FIG. 3
WinXP when the value is only read after a fault tolerant measures failed CPU from the secondary cache BIOS. But many people take it for granted that WinXP needs to open the CPU L2 cache through the registry.



Trick three: the books noise reduction software to trick

phenomenon

had a very quiet books, sudden noise, so many articles Readers are advised to reduce noise through some CPU optimization tools. The principle of these optimization methods is: use CPU cooling software to reduce the number of fan operations, so as to achieve the purpose of notebook noise reduction.

trick analysis

we took CPUidle this software to analyze. Its working principle is to issue a hlt command when the computer CPU is idle, let the CPU temporarily enter the sleep state, avoiding the CPU being at full load and generating heat, so that the CPU cools down, and the fan reduces the number of rotations to reduce the noise. But using software to reduce noise in your notebook depends on the specific situation. For CPUs that are not Centrino
technology (such as mobile Celeron, mobile P4), as long as you are online, open QQ and Word
, the CPU is in the occupied state of more than 50%. Using CPU idle, although you can lower the frequency, such as reducing the Toshiba P4M 2GHz frequency to 1995MHz, but it does not help, as soon as you enter the system to open the QQ chat software, the noise will come, no matter how you optimize, don't expect to be able to Noise is removed, sadness too!

trick four: no-name brand-driven to enhance the performance of the mouse

trick phenomenon

many online article tells the reader, the Logitech driver installation by the no-name mouse, you can Turn the mouse into a Logitech mouse to improve the performance of the mouse. In fact, this method just adds a Logitech "vest" to your mouse, and the performance has not changed at all.

Deception analysis

First download the latest MouseWare driver from the Logitech homepage, and then install the driver software for the brand-name mouse. After installation, you can set the performance of the mouse. But can users get the pleasure of the game by forcing the sampling speed? the answer is negative. If the mouse photo sensor does not reach a certain standard, the forced setting will only cause the mouse chip to enter abnormal operation. For example, the mouse only supports 4000 scans per second, and you force the scan to 8000 scans per second. In the system, the mouse pointer will immediately stop crashing. Even if it does not crash, after entering the game, the mouse is still restored in the game. It has reached the number of scans of 4000 times/second. Because this only increases the number of scans through the registry, the game does not recognize the number that is forced to increase.

Tips in the history of classical optimization tricks

ultra-real or fake? CD ROM drive easily change the DVD drive

circulated on the Internet a while ago, "Let your CD drive DVD drive change," the article, meaning the CD-ROM by opening the housing. Find a vacant jumper on the back of the board and find a jumper cap to turn it on. Or use a small piece of copper wire to connect the two ends to open the shielded DVD function. Or adjust the laser power to turn on the DVD function. In fact, this is a very ignorant move. The laser wavelengths required for CDROM and DVD discs are not the same. The mechanical structure of the optical drive is different. CDROM cannot be converted into DVD.

the sky really will fall in your lap U disk capacity suddenly turn times

this way and some consider themselves smart people want to come out, such as the 128MB U disk full of data, Then delete the data. Then another batch of new data is passed in, so that it is repeated N times, and then all the deleted data records are restored by the restoration software, so that the 128M U disk can store several GB of data. If you think about it, you can find the vulnerability, because the recovery software may only record the last deleted data record, and after the restore, most of the data is difficult to use. Instead of doing this, why are you so busy? It is better to borrow a mobile hard disk than to be reliable.

It seems that the scam under the truth speeds up XP boot speed

In many Windows XP optimization tips, there is an optimization technique that claims to be behind each startup item in the "Boot.ini" file. After "fastdetect" is changed to "nodetect", Windows XP startup speed can be accelerated. Although literally the above optimization technique changed "quick detection" to "no detection", it seems to speed up the startup speed of Windows XP system. But in fact, there is no word "nodetect" in Microsoft's vocabulary. There is no "nodetect" parameter in the "Boot.ini" file of all Windows2000/XP/2003 operating systems. So changing "fastdetect" to "nodetect" doesn't do much.

There is also an optimization technique that claims to use Microsoft's "Bootvis.exe" program to speed up system startup. But actually the "Bootvis.exe" tool mentioned in Microsoft's "Bootvis.exe" document does not improve the system's on/off performance for end users. "Bootvis.exe" also does not reduce the system's power-on time.

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