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JVM Statistics with jstat

I have written about several command-line tools provided with the Oracle and/or OpenJDK Java Development Kits (JDKs) in the past, but I’ve never written exclusively about the jstat tool. The Oracle JDK 9 Documentation Early Access states that jstat is used “to monitor Java Virtual Machine (JVM) statistics.” There is also a warning, “This command is experimental and unsupported.” Although ...

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Using jstat to report custom JVM metric sets

I’ve always been missing possibility to configure custom headers in JStat. Of course there are a lot of predefined data sets, but it’ll be nicer if we could create our own data set. And as you probably already devised I’m writing this post because such functionality is of course available :) Unfortunately I haven’t found it in any documentation so ...

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