Common performance monitoring tools and technologies in Java development
With the continuous development of technology, applications developed by Java have been widely used in various fields. However, in the face of high concurrency environments, performance monitoring and performance optimization become particularly important. In order to ensure that the application can run stably under high load, we need to use some common performance monitoring tools and techniques for performance tuning. This article will introduce some common Java performance monitoring tools and techniques and give corresponding code examples.
1. JVM performance monitoring tool
// 在启动JVM时,添加以下参数 -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=9999 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false
// 在启动JVM时,添加以下参数 -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=8888 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false
2. Performance monitoring at the code level
public class MyClass { private static final Logger LOGGER = LoggerFactory.getLogger(MyClass.class); public void performanceMonitorMethod() { long startTime = System.currentTimeMillis(); // 方法执行的业务逻辑 long endTime = System.currentTimeMillis(); LOGGER.info("Method performance: {} ms", (endTime - startTime)); } }
// 在启动JVM时,添加以下参数 -agentlib:hprof=cpu=samples,depth=10
3. System-level performance monitoring
top -H -p pid
To sum up, this article introduces some common Java performance monitoring tools and technologies, and gives corresponding code examples. In actual development, we can choose appropriate performance monitoring tools and technologies based on specific needs to optimize the performance of applications to improve system stability and performance.
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