Performance monitoring tools in PHP

In recent years, with the development of Internet technology, PHP, as a widely used development language, has been favored by more and more developers and enterprises. However, PHP performance problems also arise, which will directly affect the stability of the website and user access experience. In order to ensure the efficient operation of PHP, performance monitoring tools have become an indispensable part.

1. The significance of performance monitoring

The running process of PHP involves multiple links such as I/O and database. If there is a performance bottleneck in a certain link, it will directly affect the access speed of the website. Throughput and response time. Therefore, monitoring PHP performance is very meaningful.

1. Comprehensively understand the performance status of the website
Through the performance monitoring of the PHP code, you can understand the real-time status of the website in a timely manner, including the time of each request, memory usage, SQL query times and times, etc. And which pages/interfaces are the most visited, which interfaces have performance bottlenecks, etc. This is very important for website operation and maintenance.

2. Timely warning of problems
PHP performance monitoring can send timely warning information when performance problems occur, such as CPU overload, memory leaks, etc., helping developers find and solve problems in a timely manner.

3. Quickly locate problems
PHP performance monitoring can track stack information of requests, SQL statements and function calls, and can generate analysis reports to help developers quickly locate problems and improve troubleshooting efficiency.

2. Introduction to mainstream PHP performance monitoring tools

1. XDebug
XDebug is an advanced debugging tool that can also be used for PHP performance monitoring. It supports PHP5 and PHP7 and can run on multiple operating systems such as Windows, Linux and Mac. Through XDebug, developers can obtain detailed information about PHP scripts, such as variable values, function call details and execution time, etc. In addition, XDebug also supports outputting collected performance data into files in different formats, such as debugging information, performance analysis reports, etc.

2. Pinba
Pinba is an open source PHP performance monitoring tool written based on Go. It uses a high-performance memory mapping (shared memory) method to avoid wasting CPU and I/O resources. , which can monitor the performance indicators of PHP requests in real time. Pinba also supports exporting monitoring data into JSON format data to facilitate subsequent analysis and processing.

3. Blackfire
Blackfire is a simple and easy-to-use PHP performance monitoring tool that supports PHP5 and PHP7 versions and can be deployed in the cloud or locally. It provides rich analysis functions, which can monitor PHP's execution time, memory usage, I/O operations, etc., and provides automatic analysis functions to help developers quickly locate problems.

4. NewRelic
NewRelic is an enterprise-level PHP performance monitoring tool, mainly used to monitor website performance and transaction health. It adopts a lightweight Agent monitoring method and can achieve comprehensive monitoring of PHP applications through simple installation and configuration. NewRelic can monitor multiple aspects such as application speed, misdiagnosis rate, number of transactions, and running time to provide comprehensive performance analysis and optimization recommendations.

3. Suggestions for using performance monitoring tools

1. Select appropriate performance monitoring tools according to specific needs
According to specific PHP application scenarios and performance bottlenecks, select ones that can cover relevant monitoring The best performance monitoring tools can be achieved.

2. Appropriately reduce the frequency and accuracy of monitoring
PHP performance monitoring tools generally monitor every request and access. This may be a problem for some applications with high concurrency and frequent calls. Will significantly affect the performance of the website. Therefore, developers should adopt appropriate strategies to reduce the frequency and accuracy of monitoring based on actual needs.

3. Combine with other system monitoring tools for comprehensive analysis
PHP performance monitoring tools are only used to monitor performance data at the PHP level. During the actual operation and maintenance process, other system components (such as Web servers) also need to be monitored at the same time. , load balancer, database, etc.), it is a best practice to conduct comprehensive analysis in conjunction with other system monitoring tools.

4. Summary

PHP performance monitoring is an important means to ensure website stability and user access experience. This article introduces several excellent PHP performance monitoring tools and puts forward some usage suggestions. Developers should choose appropriate tools based on the actual situation, and conduct comprehensive analysis in conjunction with other system monitoring tools to discover and solve potential performance problems in a timely manner.

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