简体中文 | English

MyPerf4J

A high performance, non-intrusive Java performance monitoring and statistical tool designed for high-concurrency, low-latency applications.

Features

• High performance: Very low performance consumption, only 63 nano seconds per record, can be used in production environment for a long time.
• No intrusion: Using JavaAgent mode, no intrusion to the application, no need to modify the application code.
• Low memory: With memory multiplexing, only a small number of temporary objects are generated throughout the life cycle, and the GC of the application is not affected.
• Real-time: Supports second level monitoring, minimum 1 second

Usage scenarios

• Quickly locate performance bottlenecks for Java applications in a development environment
• Long-term monitoring of performance metrics for Java applications in a production environment

Multilingual document

• English Doc
• 中文文档

What does it monitor?

MyPerf4J collects dozens of metrics per application. All these metrics are collected and visualized in real-time.

This is a list of what it currently monitors: * Method Metrics

RPS, Count, Avg, Min, Max, StdDev, TP50, TP90, TP95, TP99, TP999, TP9999, TP100

• JVM Metrics

Thread，Memory，ByteBuff，GC，Class，Compilation，FileDescriptor

Want to know how to achieve the above effect? Please start the application according to the description of Quick Start, and then follow the instructions in here to install and configure.

Quick start

MyPerf4J adopts JavaAgent configuration mode, transparent access application, and the application code is completely no-intrusive.

Download

• Download and unzip MyPerf4J-ASM.zip
• Read the README file
• Modify app_name, metrics.log.xxx and filter.packages.include in MyPerf4J.properties

Configure

Add the following two parameters to the JVM startup parameters * -javaagent:/path/to/MyPerf4J-ASM.jar * -DMyPerf4JPropFile=/path/to/MyPerf4J.properties

Like: java -javaagent:/path/to/MyPerf4J-ASM.jar -DMyPerf4JPropFile=/path/to/MyPerf4J.properties -jar yourApp.jar

Note: If you are using JDK 9 and above, please add --add-opens java.base/java.lang=ALL-UNNAMED as an additional flag.

Run

Start your application, the output is to /path/to/log/method_metrics.log:

MyPerf4J Method Metrics [2020-01-01 12:49:57, 2020-01-01 12:49:58]
Method[6]                            Type        Level  TimePercent      RPS  Avg(ms)  Min(ms)  Max(ms)    StdDev    Count     TP50     TP90     TP95     TP99    TP999   TP9999
DemoServiceImpl.getId2(long)      General      Service      322.50%     6524     0.49        0        1     0.50      6524        0        1        1        1        1        1
DemoServiceImpl.getId3(long)      General      Service      296.10%     4350     0.68        0        1     0.47      4350        1        1        1        1        1        1
DemoServiceImpl.getId4(long)      General      Service      164.60%     2176     0.76        0        1     0.43      2176        1        1        1        1        1        1
DemoServiceImpl.getId1(long)      General      Service        0.00%     8704     0.00        0        0     0.00      8704        0        0        0        0        0        0
DemoDAO.getId1(long)         DynamicProxy          DAO        0.00%     2176     0.00        0        0     0.00      2176        0        0        0        0        0        0
DemoDAO.getId2()             DynamicProxy          DAO        0.00%     2176     0.00        0        0     0.00      2176        0        0        0        0        0        0

Uninstall

Remove the following two parameters from the JVM startup parameters and restart to uninstall the tool. * -javaagent:/path/to/MyPerf4J-ASM.jar * -DMyPerf4JPropFile=/path/to/MyPerf4J.properties

Build

You can build MyPerf4J-ASM.jar by yourself. * git clone git@github.com:LinShunKang/MyPerf4J.git * mvn clean package

MyPerf4J-ASM-${MyPerf4J-version}.jar at MyPerf4J-ASM/target/

Issues

If you encounter any issues or if you have a question, don't hesitate to create an issue or send email : )

Known Users

Welcome to register the company name in this issue: https://github.com/LinShunKang/MyPerf4J/issues/30 (In order of registration)

Thanks

Thanks JetBrains support provided by OpenSourceSupport : )

Inspired by

• Perf4J
• TProfiler

More Information

For more information about the project, please read https://github.com/LinShunKang/MyPerf4J/wiki/English-Doc.