Node Statistics

Select a Node Name and a Report Type: min, max or average. These are the monitored parameters:

• CPU Cores (Number of CPU Cores)

• RAM Usage %

• Total RAM Size: The node’s total RAM size.

• Used RAM Memory: Amount of currently used RAM.

• Available RAM Memory: Amount of currently available RAM.

• Cache: In-memory cache for files read from the disk (the page cache). This doesn’t include Swap Cached.

• Total Swap Size: Total amount of swap space available.

• Used Swap Space: Amount of swap space that is currently used.

• Available Swap Memory: Amount of currently available swap memory.

• Swap Cache: Memory that was swapped out but is swapped in, and also still in the swap file. If memory pressure is high, these pages don’t need to be swapped out again, since they are already in the swap file. This saves I/O.

• % USR: The percentage of CPU utilization that occurred while executing at the user level (application).

• %IOWait: The percentage of time the CPU or CPUs were idle, during which the system has an outstanding disk I/O request.

• %Idle: The percentage of time that the CPU or CPUs were idle, and the system did not have an outstanding disk I/O request.

• %Sys: The percentage of CPU utilization that occurred while executing at the system level (kernel). This does not include time spent servicing hardware and software interrupts.