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Name | Collection location | Parameters | Scope of coverage | Unit(s) of measure | Definition | Method of Measurement | Sources of Error | Comments |
|---|---|---|---|---|---|---|---|---|
| cpu_idle | Host | The host CPUs, individually or total usage summed across all CPUs | nanoseconds or percentage | Time the host CPU spends idle. | see CPU Utilization above, and section 6 of TST008 | |||
| cpu_nice | Host | The host CPUs, individually or total usage summed across all CPUs | nanoseconds or percentage | Time the host CPU spent running user space processes that have been niced. The priority level a user space process can be tweaked by adjusting its niceness. | see CPU Utilization above, and section 6 of TST008 | |||
| cpu_interrupt | Host | The host CPUs, individually or total usage summed across all CPUs | nanoseconds or percentage | Time the CPU has spent servicing (hardware) interrupts. | see CPU Utilization above, and section 6 of TST008 | |||
| cpu_softirq | Host | The host CPUs, individually or total usage summed across all CPUs | nanoseconds or percentage | Time spent handling interrupts that are synthesized, and almost as important as Hardware interrupts (above). "In current kernels there are ten softirq vectors defined; two for tasklet processing, two for networking, two for the block layer, two for timers, and one each for the scheduler and read-copy-update processing. The kernel maintains a per-CPU bitmask indicating which softirqs need processing at any given time." [Ref] | see CPU Utilization above, and section 6 of TST008 | |||
| cpu_steal | Host | The host CPUs, individually or total usage summed across all CPUs | nanoseconds or percentage | CPU steal is a measure of the fraction of time that a machine is in a state of “involuntary wait.” It is time for which the kernel cannot otherwise account in one of the traditional classifications like user, system, or idle. It is time that went missing, from the perspective of the kernel. | see CPU Utilization above, and section 6 of TST008 | |||
| cpu_system | Host | The host CPUs, individually or total usage summed across all CPUs | nanoseconds or percentage | Time that the CPU spent running the kernel. | see CPU Utilization above, and section 6 of TST008 | |||
| cpu_user | Host | The host CPUs, individually or total usage summed across all CPUs | nanoseconds or percentage | Time CPU spends running un-niced user space processes.
| see CPU Utilization above, and section 6 of TST008 | |||
| cpu_wait | Host | The host CPUs, individually or total usage summed across all CPUs | nanoseconds or percentage | The time the CPU spends idle while waiting for an I/O operation to complete | see CPU Utilization above, and section 6 of TST008 | |||
| total_vcpu_utilization | Host | The host CPUs used by a guest, total usage summed across all CPUs | nanoseconds or percentage | The total utilization summed across all execution contexts (except Idle) and all CPUs in Scope. | see CPU Utilization above, and section 6 of TST008 |
Networking
[TODO] Add a note on the vSwitch and add vSwitch specific metrics
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Name | Collection location | Parameters | Scope of coverage | Unit(s) of measure | Definition | Method of Measurement | Sources of Error | Comments | |
|---|---|---|---|---|---|---|---|---|---|
| Total Packets received | see section 7 of TST008 | ||||||||
| Total Packets transmitted | see section 7 of TST008 | ||||||||
| Total Octets received | see section 7 of TST008 | ||||||||
| Total Octets transmitted | see section 7 of TST008 | ||||||||
| Total Error frames received | see section 7 of TST008 | ||||||||
| Total Errors when attempting to transmit a frameTotal Error frames transmitted | see section 7 of TST008 | ||||||||
| Broadcast Packets | |||||||||
| Multicast Packet | |||||||||
Average bitrate | |||||||||
| Average latency |
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