10 recommended content for performance tuning

The performance of network applications is affected by many factors. Database access, file system operations, network bandwidth, etc. are all potential influencing factors. Yii has reduced the performance impact of frameworks in various aspects. But there are still many places in user applications that can be improved to improve performance. 1. Enable APC extension Enabling PHP APC extension is probably the easiest way to improve the overall performance of an application. This extension caches and optimizes PHP intermediate code and avoids the time spent parsing PHP scripts for each new request. 2. Disable debug mode Disabling debug mode is another easy way to improve performance. If the constant YII_DEBUG is set to true, this Yii application will run in debug mode. Debug mode is useful during the development phase, but it affects performance because some components cause additional system overhead. For example, the message logger will log additional debugging information for each logged message. 3. Use yiilite.php when PHP APC is enabled

1. Yii Framework Official Guide Series 52 - Special Topic: Performance Tuning

Introduction: The performance of network applications is affected by many factors. Database access, file system operations, network bandwidth, etc. are all potential influencing factors. Yii has reduced the performance impact of frameworks in various aspects. But there are still many in user applications...

2. Performance Optimization of PHP Optimization Performance Adjustment and Optimization Adjustment to Optimize Performance How to Optimize Computer Performance

Introduction: Performance optimization, php: Performance optimization of PHP optimization: 1. Language performance optimization 1. Use the ab tool under Apache for performance testing: ab -n100 -c100 https:/ /www.baidu.com/ (requests 100 times, concurrency is 100) focus on two quantities: Requests per second (number of requests per second) and Time per request (average response time) 2. Try to use PHP built-in variables and constants, Function, reason: PHP code needs to be individually scanned by the zend engine into zend-recognizable syntax, and then decoded

3. Performance adjustment related

Introduction: 2 database servers, each server has an instance, and one instance has a library. The two databases interact with each other and fail, and the maximum memory is set to 50% of the physical memory, but it is caused by the increase in load. Insufficient memory problem: In the past, in 2000, the database would not respond to the system's memory pressure, so it could only set 50% to ensure balanced memory usage, but

4. Sun will introduce new APIs to perform performance adjustments on MySQL

Introduction: According to ldquo;father of Java” James Gosling, Sun will not provide the MySQL database with Introducing a new API (Application Programming Interface), it is very possible to M

5. mongodb index and query analyzer—dex

Introduction: dex introduces the mongodb index and query analyzer dex, which is a MongoDB performance adjustment tool that compares MongoDB log files and index entries and give indexing suggestions. Currently, a URI to connect to the database must be provided. dex only recommends complete indexes, not partial indexes. Windows platform is not supported. The working principle of dex is mainly during the running process

6. Step by step explanation of MySQL database performance adjustment

Introduction: INSERT Speed ​​of query: The time to insert a record is composed of: Connection: (3) Send query to server: (2) Analyze query: (2) Insert record: (1 x record size) Insert index: (1 x index) Close (1) The numbers here are somewhat proportional to overall time. This does not take into account the initial overhead of opening the table (which it does once for each concurrently running query).

7. Detailed explanation of SQL Server DBA work content

Introduction: In the Microsoft SQL Server 2008 system, the database administrator (Database Administration, referred to as DBA) is the most important role. The DBA's work goal is to ensure that the Microsoft SQL Server 2008 system runs normally and efficiently. DBA The work is also the busiest work. Whether it is performance adjustment or disaster recovery, it is inseparable from the support of the DBA. Generally

8. Sun wants to perform performance adjustment on MySQL

Introduction: According to "Father of Java" James Gosling, Sun will not introduce a new API (application programming interface) for the MySQL database, but will soon It is possible to do more tuning work on MySQL. At Sun's Technology Day in Sydney, Gosling said that many tools now use JDBC to connect to the database and use APIs to execute SQL statements. These usage methods

##9. 15 Useful MySQL/MariaDB Performance Tuning and Optimization Tips

Introduction: This article will tell Some basic, but very useful tips on how to optimize MySQL/MariaDB performance. Note, this article assumes that you have installed MySQL or Maria

10. What exactly does a SQL Server database DBA do? ? ?

Introduction: In the Microsoft SQL Server 2008 system, the Database Administrator (Database Administration, referred to as DBA) is the most important role. The DBA's job goal is to ensure that the Microsoft SQL Server 2008 system runs normally and efficiently. The DBA's work is also the busiest. Whether it is performance adjustment or disaster recovery, it is inseparable from the DBA's support

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