Events OS Metrics

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Revision as of 23:16, 10 September 2017 by Ovidiu (talk | contribs) (→‎Swap Metrics)
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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).

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CpuKernelTime

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

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CpuIdleTime

The percentage of total CPU time spent in idle mode.

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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.

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CpuHardwareInterruptTime

The percentage of total CPU time spent servicing hardware interrupts.

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CpuSoftwareInterruptTime

The percentage of total CPU time spent servicing software interrupts.

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CpuStolenTime

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

Steal Time

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Memory Metrics

PhysicalMemoryFree

The amount of physical RAM, left unused by the system.

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PhysicalMemoryTotal

Total amount of usable RAM, which is the amount of physical RAM installed on the system minus a number of reserved bits and the kernel binary code.

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PhysicalMemoryUsed

The amount of physical memory used by processes. It is calculated with the formula:

Used Physical Memory = MemTotal - MemFree - Buffers - Cached

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Swap Metrics

SwapFree

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SwapTotal

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SwapUsed

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Load Average Metrics

LoadAverageLastMinute

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LoadAverageLastFiveMinutes

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LoadAverageLastTenMinutes

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