Events OS Metrics: Difference between revisions

From NovaOrdis Knowledge Base
Jump to navigation Jump to search
Line 82: Line 82:


Also see:  
Also see:  
* [[Proc-meminfo#MemTotal|/proc/meminfo MemTotal]]
* [https://github.com/NovaOrdis/events-api/blob/master/src/main/java/io/novaordis/events/api/metric/os/mdefs/PhysicalMemoryTotal.java GitHub PhysicalMemoryTotal]
* [https://github.com/NovaOrdis/events-api/blob/master/src/main/java/io/novaordis/events/api/metric/os/mdefs/PhysicalMemoryTotal.java GitHub PhysicalMemoryTotal]



Revision as of 23:06, 10 September 2017

Internal

Overview

CPU Metrics

CpuUserTime

The percentage of total CPU time spent executing code in user mode.

Also see:

CpuNiceTime

The percentage of total CPU time spent executing code in user mode with low priority (nice).

Also see:

CpuKernelTime

The percentage of total CPU time spent executing system calls on behalf of processes.

Also see:

CpuIdleTime

The percentage of total CPU time spent in idle mode.

Also see:

CpuIoWaitTime

The percentage of total CPU time spent waiting for I/O to complete. The CPU will not wait for IO, it will be schedule onto another task or will enter idle state. When a CPU goes into idle state for outstanding task I/O, another task will be scheduled on this CPU. On a multi-core CPU, the task waiting for I/O to complete is not running on any CPU, so the iowait of each CPU is difficult to calculate.

Also see:

CpuHardwareInterruptTime

The percentage of total CPU time spent servicing hardware interrupts.

Also see:

CpuSoftwareInterruptTime

The percentage of total CPU time spent servicing software interrupts.

Also see:

CpuStolenTime

The percentage of total CPU time spent in other operating systems when running in a virtualized environment. More details:

Steal Time

Also see:

Memory Metrics

PhysicalMemoryFree

Also see:

PhysicalMemoryTotal

Also see:

PhysicalMemoryUsed

Also see:

Swap Metrics

SwapUsed

Also see:

SwapFree

Also see:

SwapTotal

Also see:

Load Average Metrics

LoadAverageLastMinute

Also see:


LoadAverageLastFiveMinutes

Also see:


LoadAverageLastTenMinutes

Also see: