PHP and Oracle performance monitoring

As modern software development pays more and more attention to performance, PHP and Oracle have become an inevitable combination in development. However, in actual deployment and use, we often face performance problems, such as slow response, excessive resource usage, high load, etc. In response to these problems, PHP and Oracle performance monitoring have also become very important.

1. PHP performance monitoring

PHP is a widely used programming language that can generate dynamic web pages through server-side parsing. The execution speed of PHP is one of the main factors affecting its performance. When facing performance problems, how to implement PHP performance monitoring is particularly important.

1. Xdebug Analysis Debugger

Xdebug is a free PHP debugger that can provide various information during the debugging process. What is of concern is the performance analysis feature of Xdebug, which can generate performance analysis reports at each stage of the script, calculate the execution time after each function is executed, and record the results in the application's Trace file. In this way, you can find where the problem is in the running code and optimize it accordingly.

2. Apache Bench detection tool

Apache Bench (ab for short) is a tool used to test the performance of HTTP servers. It can test any website under any web server ( static or dynamic content). Test the response performance of the target server by sending a fixed number of concurrent requests to the target address. Reasonable optimization strategies can be carried out based on the test results.

3. WebGrind web page IDE

WebGrind is an open source application written in PHP. It provides a graphical interface that can well display PHP performance analysis reports. result. WebGrind can parse Xdebug Trace files, generate hierarchical content and call stacks, and provide a web interface to analyze and optimize the performance of PHP applications.

2. Oracle Performance Monitoring

Oracle is an advanced database management system that provides key functions for enterprise-level applications. In terms of Oracle database performance monitoring, what aspects should we focus on?

1. Understand the database structure

Understanding the basic structure of database objects is the first step. You must know the properties of each object (such as tables, views, indexes, stored procedures, etc.) and how the data is stored in the table. If developers understand the structure of database objects, they can better consider how to optimize query and update operations.

2. SQL Execution Analyzer

SQL Execution Analyzer can track SQL query statements and identify the execution plan and query time cost. The SQL execution analyzer makes the analysis report into an analysis report file, which records the execution plan in detail and is used to predict the time required for the query and which resources are utilized. In addition, Oracle's AWR report can also provide detailed execution plans.

3. Monitoring program’s CPU and memory

Programs running on the database server will occupy the computer’s CPU and memory resources, which is also one of the main causes of performance problems. . By monitoring CPU and memory usage, you can understand the actual status of the program and make corresponding improvement measures when necessary. Commonly used monitoring software includes top, vmstat, sar, etc.

4. Slow query log

Oracle database provides a slow query log function, which can track all SQL statements whose execution time exceeds a specific time limit (default is 5 seconds). This feature is particularly useful for performance optimization because it captures the queries that perform the slowest on average across all requests to the program and provides direct measurable metrics.

In short, performance monitoring can detect potential problems in advance and help optimize system performance. PHP and Oracle are common development combinations. We should discover performance problems through performance monitoring tools in a timely manner so that system performance can be improved.

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