Miguel, can this probe get things like stats on the garbage collector (avg time spent in GC, etc.)
Thanks, -ben On Tue, Mar 28, 2006 at 05:17:29PM +0100, José Miguel Pereira Tavares wrote: > > Hi all! > > Sometime ago I enquired about the existence of a probe that would give > information on a running Java Virtual Machine (JVM). Unfortunately it's > a Linux only probe (for now at least). > > Now I am happy to present to the community a probe developed in C that > can monitors a JVM and report to a gmond. It's publishing of metrics is > similar to that of gmetric. > > It works by parsing the info at /proc/pid/status of the Linux tasks > relevant to the JVM (depending on the kernel the status file reports > just one process with threads or a set of tasks that represent > process/threads). > > Although this probe is now used for monitoring Java services it can be > used to monitor any other kind of process that has a long time span. > It's a kind of process oriented metrics. > > It was done in C for the usual question on intrusiveness. Memory > footprint is around 1.5 Mb Vss and it uses 0.1% of the CPU with 10 > seconds of interval between samples. > > This probe can be downloaded at: > http://student.dei.uc.pt/~mtavares/index.php?content=software > > Installation requires ganglia to be installed using the source code. > > I would be glad to hear comments, bug reports and, even better, to > receive patches. > > Miguel Tavares > > > -- > > "Until they become conscious they will never rebel, > and until after they have rebelled they cannot become conscious." > > - George Orwell's 1984 - -- Ben Hartshorne email: [EMAIL PROTECTED] http://ben.hartshorne.net
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