jrf is a good take up system resources, and powerful analysis tools jvm, the following is a docker trial (using openjdk11)
for jfr enabled, use jcmd
Preparing the Environment
- docker-compose documents
version: "3"
services:
openjdk:
build:
context: ./openjdk
dockerfile: Dockerfile
volumes:
- "./jfr:/jfr"
ports:
- "8082:8080"
- openjdk dockerfile
Note that the test run, using a simple spring boot program, file download address: https://github.com/rongfengliang/zulu-openjdk-openjdk-oracle-jdk/blob/master/openjdk/webapi-0.0.1-SNAPSHOT. jar
FROM openjdk:11-stretch
LABEL AUTHOR="dalongrong"
LABEL EMAIL="[email protected]"
WORKDIR /
COPY webapi-0.0.1-SNAPSHOT.jar /webapi-0.0.1-SNAPSHOT.jar
COPY docker-entrypiont.sh /docker-entrypiont.sh
RUN chmod +x /docker-entrypiont.sh
EXPOSE 8080 9999 30384
ENTRYPOINT [ "/docker-entrypiont.sh" ]
- docker-entrypiont.sh
#!/bin/sh
java -XX:+FlightRecorder -jar /webapi-0.0.1-SNAPSHOT.jar
&& test run
- run
docker-compose build openjdk
- start up
docker-compose up -d openjdk
- Enable jfr
docker-compose exec openjdk sh
jps ( the search process)
jcmd <pid> JFR.start name=demo filename=/jfr/appdemo.jfr
- A simple pressure test
ab -c 10 -n 100000 http://localhost:8082/actuator/env
- dump data
jcmd <pid> JFR.dump name=demo
- View jfrt information
Use jmc tool, Download, https://adoptopenjdk.net/jmc.html
- View results
- Stop jfr
jcmd <pid> JFR.stop name=demo
Explanation
Currently the community has also been provided, plug-ins and integration processes prometheus flame figure, jfr also supports programming capability, is a more powerful performance analysis tool jvm
Reference material
https://adoptopenjdk.net/jmc.html
https://www.ibm.com/developerworks/cn/java/j-lo-performance-analysissy-tools3/index.html
https://docs.oracle.com/javacomponents/jmc-5-4/jfr-runtime-guide/about.htm#JFRUH170