The central processing unit (CPU) counters include information about the percentage of time that is spent by the central processing unit in various states, the number of interrupts and context switches, and memory information as available. The percentage of the central processing unit time totals 100% across the following categories. Although these values are represented in the Dashboard as event counters, they are more properly viewed as meters because they represent absolute values 0 - 100%. These counters are common to all components.
Property | Description | Windows Counter Name |
---|---|---|
busy | The percent of time the central processing unit is in use. | On HP-UX and Windows servers:100% – idleOn other servers:100% – idle – wait. |
idle | The percent of time the central processing unit is not running any operations. | \Processor(_Total)\% Processor Time |
interrupt | (Windows only) The percent of time that is spent in processing interrupts. | \Processor(_Total)\% Interrupt Time |
nice | (HP-UX only) The percent of time spent running low priority processes. Other systems return the “Wait I/O” value instead. “Nice” processes run with low priority (they are “nice” to other users). The nice percentage represents the amount of time the Central Processing Unit spends running nice processes. | N/A |
user | The percent of time spent running user-level code. | \Processor(_Total)\% User Time |
system | The percent of time spent running operating system code. | \Processor(_Total)\% Privileged Time |
Property | Description | Windows Counter Name |
---|---|---|
interrupts | The number of interrupts that are sustained by the Central Processing Unit. | \Processor(_Total)\Interrupts/sec |
memory | The number of megabytes of memory free. | \Memory\Available MBytes |
switches | The number of context switches. | \System\Context Switches/sec |
Property | Description |
---|---|
jvm_free_memory | The amount of free memory, in megabytes, in the Java virtual machine. |
jvm_total_memory | The current total memory that is used by the Java virtual machine. The total is less than the value shown in the environmental information for jvm_max_memory. |