Default Metrics Captured by Java 3.0 Agent

"Current Thread Count"

java.lang:type=Threading / ThreadCount

"Loaded Class Count"

java.lang:type=ClassLoading / LoadedClassCount

“GC Total Count”

Sum of counts across all GC MXBeans (diff since last reported)

“GC Total Time”

Sum of time across all GC MXBeans (diff since last reported)

“Available Bytes”

java.lang:type=OperatingSystem / FreePhysicalMemorySize

“Heap Memory Used (MB)”

java.lang:type=Memory / HeapMemoryUsage.Used

“Private Bytes”

java.lang:type=Memory / HeapMemoryUsage.Used + NonHeapMemoryUsage.Used

“% Processor Time”, instance: “”

java.lang:type=OperatingSystem / ProcessCpuTime (diff since last reported, normalized by time and number of CPUs)

“% Processor Time”, instance: “_Total”

/proc/stat (I don’t understand this calculation???)

“IO Data Bytes/sec”

/proc/<pid>/io