Friday, October 22, 2010

Actual FastCGI (Introduction)


Abstract:
When the site more popular, the number of straight-line rise in heart secretly delighted when, suddenly coming to a large number of call center responses Tel: 銆嶴ite connection closed on going,銆?by going out so long before the screen 銆?銆?has emerged Server Too Busy .. . 銆? . . . It appears necessary hardware upgrades, but coupled with more memory, more CPU, for a more expensive machine really solve the problem? Are there less expensive ways? This article describes how to install the FastCGI Apache server module, how to configure and use FastCGI web application, so your site program in the existing structure to full speed.
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1. To overcome the bottleneck of CGI
Efficiency of 1.1 headache
1.2 The number of solution
1.3 a better way - FastCGI
2. Install FastCGI
2.1 FastCGI module installed on Apache server
2.1.1 standard installation (using APACI)
Mod_fastcgi 2.1.2 will be installed as a DSO
2.2 by adding the relevant settings using mod_fastcgi
Install FastCGI Development Kit 2.3
2.4 Test FastCGI
2.5 Install FCGI module for Perl
3. Write FastCGI applications
3.1 The procedural framework
3.2 header files into fcgi_stdio.h
3.3 FastCGI processing cycle
3.4 Lian Results libfcgi.a library
3.5 Notes on writing FastCGI programs
4. FastCGI how fast?
4.1 rating tools - ApacheBench
4.2 CGI vs. FastCGI
4.3 identify the Memory Leak
5. Reference
About this document ...






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Thursday, October 14, 2010

3G the first number up to the "special" user


Beijing TD test numbers do not release the number of more than 2000

Sources said the network made the first batch of TD-SCDMA 3G terminal and the number has been distributed to users. The next period of time, Beijing will be issued in batches TD-SCDMA mobile phone number. This is expected in Beijing, Qingdao, 5 to release 2 million numbers will be mainly concentrated in the competent ministries, operators and other user-friendly hands.

3G so we wistfully IC pictures

A well-informed sources, he has received from Beijing, Qingdao, two of the TD-SCDMA mobile phone call, the voice clear.

The news from China Netcom, Beijing plans to gradually release this month on the 10th TD-SCDMA mobile phone and number, issuing a total of about 1,000 numbers.

Sources said Beijing's TD-SCDMA test network of the main building along the Chang'an Avenue and North Fourth Ring Road, this is because the Ministry of Development and Reform Commission and other policy-making departments in the Chang'an Avenue, while Datang Mobile and other major R & D units in the North 4 Central, currently in Beijing to use TD-SCDMA mobile phones will be these people.

After news that Beijing will issue 3G numbers 5000, but analysts say this argument is based on 20,000 more numbers in the four cities, the calculation of equalization come. Beijing is not the main test TD-SCDMA, the network compared to the scale of construction in Qingdao, Baoding and Xiamen to be small, so no amount will not exceed 2,000.

Massive release mobile phone numbers on the TD-SCDMA in order to carry out the practical application of environmental testing, which requires a certain call volume users to test the stability of TD networks, voice transmission quality.

2G mobile phone access in accordance with the TD-SCDMA mobile phones to hear the user response, domestic 3G mobile phone voice clear, indicating that TD-SCDMA construction goes well, at least for now have to solve the problem with the 2G interworking. But after the news, TD-SCDMA still only calls within the network.

Alleged use of TD-SCDMA mobile phone users will require the number of daily calls and recorded. And this test will be a period of time, there may be more than 2 months, depends on the specific test progress of the case.

In addition to payment of TD numbers in Beijing than in Qingdao, Baoding and Xiamen will be no more large-scale release, which is after the development of 20,000 user-friendly program to use TD-SCDMA mobile phone part, China Netcom, China Telecom and China Mobile, respectively in the three areas had TD test network. It is reported that these three areas will begin to distribute telephone numbers in the middle of this month. Meanwhile, news that Shanghai will start issuing 3G on the 15th of this month numbers. China-made 3G mobile phone number will be used in paragraph 188.

This will be the last before the TD-SCDMA commercial test, the test results will determine the country's first 3G license issuance time. Minister of Information Industry Wang Xudong, and Reform Commission officials have committed to the 2008 Olympic Games will use 3G communications. Sources said the authorities had planned to debut in late 2006 issued 3G licenses, but because of TD-SCDMA test delay, 3G licenses may be postponed until middle of next year.

If the test smoothly, 3G license issuance is also expected to advance. However, analysts also pointed out, 3G license issuance time not only depends on the TD-SCDMA test results, but also the restructuring of telecommunications operators, and if so, 3G release time may be more delayed.






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