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Great article on an important subject!
One important thing to keep in mind is that you should only use OpenJDK. The Oracle JDK requires a commercial license to use flight recorder in production. That might be OK if your company is already a licensee but for a lot of us it's a licensing risk.
You can compare the various Open JDK implementations at foojay.io.
Hi,
which version did you try. We have been using JFR dumps for long time, Oracle JDK 1.7, 1.8, but also OpenJDK 8. Now we are facing an issue in OpenJDK 11 application, so we used usual approach (we are using jcmd <<PID>> JFR.dump every 5 minutes and store some in history on disks). It seems dump is populated by data (have usual few MB), but JMC 8.1.0 (nor 8.0.1) is not able to display almost nothing. I had older JMC 7.x and it was not even able to open dump from OpenJDK 11, which is not surprosing). JMC shows no CPU utilisation, no thread latency swim lanes... Our application is using also JMS client and the only thing we see are JMS related events...