Spotlight on Oracle 10.8 - Getting Started Guide

Processors	The number of CPUs in the machine.
CPU Spinner	The CPU load (as a percentage) across all CPUs on the machine.
User %	The percentage of time the CPU is in the User state, across all CPUs.
System %	The percentage of time the CPU is in the System state, across all CPUs.
Wait %	The percentage of time the CPU is in the Wait state, across all CPUs. Wait is where the machine can only wait for I/O, or something similar, to complete.

Queue Length

The length of the queue in which processes are waiting to be executed. Processes in this queue will be run when the CPU becomes available.

Processes

Total	The total number of processes that are running on the machine.
Zombies	The number of child processes whose termination has not been acknowledged by their parent process.
Blocked	The number of processes waiting for some event or condition before they can continue execution.

Data flows between the Network panel and CPU panel

Network (Network to CPU)	Rate of incoming network data The incoming rate of data to the server. Note: Spotlight contributes to the data traffic as part of its diagnostic activities.
Network (CPU to Network)	Rate of outgoing network data The outgoing rate of data from the server. Note: Spotlight contributes to the data traffic as part of its diagnostic activities.
Network Errors (Network to CPU)	Rate of incoming network errors The rate at which errors are received from the network.
Network Errors (CPU to Network)	Rate of outgoing network errors The rate at which errors are sent from the machine to the network.

Data flows between the CPU panel and the Memory panel

The flows indicate the rate data is written out of and read in to memory. The unit of measure is dependent on the Operating System.

Operating System	Unit of Measure
Oracle Solaris	Kilobytes per second
HP-UX	Pages per second
IBM AIX	Pages per second
Linux	Kilobytes per second. Old versions of the kernel may measure in blocks per second. Refer to your Linux documentation.