Events OS Metrics

Internal

• DataBot Metric Reference

CPU Metrics

CpuUserTime

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

Also see:

• /proc/stat cpu user time reading
• GitHub CpuUserTime

CpuNiceTime

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

Also see:

• /proc/stat cpu nice time reading
• GitHub CpuNiceTime

CpuKernelTime

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

Also see:

• /proc/stat cpu system time reading
• GitHub CpuKernelTime

CpuIdleTime

The percentage of total CPU time spent in idle mode.

Also see:

• /proc/stat cpu idle time reading
• GitHub CpuIdleTime

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:

• /proc/stat cpu iowait time reading
• GitHub CpuIoWaitTime

CpuHardwareInterruptTime

The percentage of total CPU time spent servicing hardware interrupts.

Also see:

• /proc/stat cpu irq time reading
• GitHub CpuHardwareInterruptTime

CpuSoftwareInterruptTime

The percentage of total CPU time spent servicing software interrupts.

Also see:

• /proc/stat cpu softirq time reading
• GitHub CpuSoftwareInterruptTime

CpuStolenTime

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

Steal Time

Also see:

• /proc/stat cpu steal time reading
• GitHub CpuStolenTime

CpuGuestTime

The percentage of total CPU time spent running a virtual CPU for guest operating systems under the control of the Linux kernel.

Also see:

• /proc/stat cpu guest time reading

CpuGuestNiceTime

The percentage of total CPU time spent running a virtual CPU for niced guest operating systems under the control of the Linux kernel.

Also see:

• /proc/stat cpu guest_nice time reading

Memory Metrics

PhysicalMemoryFree

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

Also see:

• /proc/meminfo MemFree
• GitHub PhysicalMemoryFree

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.

Also see:

• /proc/meminfo MemTotal
• GitHub PhysicalMemoryTotal

PhysicalMemoryUsed

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

Used Physical Memory = MemTotal - MemFree - Buffers - Cached

Also see:

• /proc/meminfo physical memory used by processes
• GitHub PhysicalMemoryUsed

Swap Metrics

SwapFree

The total amount of free swap.

Also see:

• /proc/meminfo SwapFree
• GitHub SwapFree

SwapTotal

The total amount of swap available.

Also see:

• /proc/meminfo SwapTotal
• GitHub SwapTotal

SwapUsed

The amount of swap used by processes can be approximated with the formula:

Used Swap = SwapTotal - SwapFree

Also see:

• /proc/meminfo total amount of used swap
• GitHub SwapUsed

Load Average Metrics

LoadAverageLastMinute

Also see:

• GitHub LoadAverageLastMinute

LoadAverageLastFiveMinutes

Also see:

• GitHub LoadAverageLastFiveMinutes

LoadAverageLastTenMinutes

Also see:

• GitHub LoadAverageLastTenMinutes