java-mission-control

问题 I'm profiling a Java application using Java Mission Control, and it's saying on the main page of the flight recording that "This recording contains few profiling samples even though CPU load is high. The profiling data is thus likely not relevant." It seems to be telling the truth. I asked it to sample every 10 ms for 3 minutes which should be 18000 samples, but I only see 996 samples. It goes on to explain "The profiling data is thus likely not relevant. This might be because the application

问题 I'm trying to Parse JFR dump using JAVA. I followed this blog, http://hirt.se/blog/?p=446 . But these methods are deprecated now. Is there any supported parsers for JFR to JAVA? if not can you point me is it possible to retrieve data from JFR dump? 回答1: As Klara mentioned, there is no officially supported parser. Hopefully the JFR parser will be supported officially in JDK 9. For now, you can use the APIs mentioned in Hirt's blog. Don't worry about those being deprecated. :) I have

问题 I got to know that parsing JFR into Java can be done by unsupported parsers like JMC parser using jrockit from this. Also I figured during the flight recording there will be lot of events captured. If I want to retrieve data values from various events such as Stack trace under Events tab, Hot method under Code tab, Call tree under Code tab etc etc. How do I filter? Example image for example I was able to filter Call tree using following code as mentioned in jfr-flame-graph. final String EVENT

问题 Other than the more 'advanced' GUI from Java mission control, how are they different? At first glance they seem to offer very similar functionality (Interpreting JMX data and Memory/CPU profiling). However, as they are both shipped with the JDK (I'm using JDK 1.7.0_51 SE) I'm assuming there are significant differences, otherwise they would be combined into a single solution. Especially as this increases the size of the JDK significantly. Is Java Mission Control ultimately going to replace