JVM CPU/Mem Summary

Track Java Virtual Machine memory and CPU usage, get JVM system information, application performance metrics, and input arguments for a single connection. Verify whether the memory usage has reached a plateau. Or, if usage is getting close to the limit, determine whether to allocate more memory.

Fields and Data This display includes:
	Source	Select the type of connection to the RTView Server.
	Connection	Select an RTView Server from the drop-down menu. Names can be modified in the RTView Server configuration properties file.
	Operating System	Displays data pertaining to the operating system running on the host on which the JVM resides.
		Connected	The connection state. -- Disconnected. -- Connected.
		Expired	When checked, this server is expired due to inactivity.
		Operating System	The name of the operating system running on the host on which the JVM resides.
		OS Version	The operating system version.
		Architecture	The ISA used by the processor.
		Available Processors	The total number of processors available to the JVM.
	Runtime	Process Name	The name of the process.
		Start Time	The date and time that the application started running.
		Up Time	The amount of time the application has been running, in the following format: 0d 00:00 <days>d <hours>:<minutes>:<seconds> For example: 10d 08:41:38
		JVM CPU %	The amount of CPU usage by the JVM, in percent.
		Live Threads	The total number of live threads.
		Daemon Threads	The total number of live daemon threads.
		Peak Threads	The total number of peak live threads since the Java virtual machine started or the peak was reset.
		Max Heap Mb	The maximum amount of memory used for memory management by the application in the time range specified. This value may change or be undefined. A memory allocation can fail if the JVM attempts to set the Used memory allocation to a value greater than the Committed memory allocation, even if the amount for Used memory is less than or equal to the Maximum memory allocation (for example, when the system is low on virtual memory).
		Committed Mb	The amount of memory, in megabytes, guaranteed to be available for use by the JVM. The amount of committed memory can be a fixed or variable size. If set to be a variable size, the amount of committed memory can change over time, as the JVM may release memory to the system. This means that the amount allocated for Committed memory could be less than the amount initially allocated. Committed memory will always be greater than or equal to the amount allocated for Used memory.
		Used Mb	The amount of memory currently used by the application. Memory used includes the memory occupied by all objects including both reachable and unreachable objects.
	Class Name	Class name used for JVM.
	Arguments	The arguments used to start the application.
	More Arguments	Additional arguments used to start the application.
	JVM CPU, Memory, Thread Trends	Shows JVM metrics for the selected server.
		Log Scale	This option should be used when the range of your data is very broad. When checked, the values are displayed using a logarithmic scale rather than using the actual values so that data on the extreme ends of the scale can be viewed more effectively. For example, if you have data that ranges from the tens to the thousands, the data in the range of the tens will be neglected visually if you do not check this option.
		Base at Zero	When this option is checked, zero is set as the as the Y axis minimum for all graph traces.
		Time Range	Select a time range from the drop down menu varying from 2 Minutes to Last 7 Days, or display All Data. To specify a time range, click the button. By default, the time range end point is the current time. To change the time range end point, click the button and select a date and time from the calendar or enter the date and time in the text field using the following format: MMM dd, YYYY HH:MM. For example, Aug 21, 2011 12:24 PM. Use the navigation arrows to move forward or backward one time period. Note: The time period is determined by your selection from the Time Range drop-down menu. Click Restore to Now to reset the time range end point to the current time.
		Trend Graphs	Shows JVM metrics for the selected server. JVM CPU % -- Traces the amount of memory, in percent, used by the JVM in the time range specified. Max Heap Mb -- Traces the maximum amount of memory used for memory management by the application in the time range specified. This value may change or be undefined. Note: A memory allocation can fail if the JVM attempts to set the Used memory allocation to a value greater than the Committed memory allocation, even if the amount for Used memory is less than or equal to the Maximum memory allocation (for example, when the system is low on virtual memory). Cur Heap Mb -- Traces the current amount of memory, in megabytes, used for memory management by the application in the time range specified. Used Heap Mb -- Traces the memory currently used by the application. Live Threads -- Traces the total number of currently active threads in the time range specified.