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[receiver/kubeletstats] Start name change for cpu.utilization #25901

27 changes: 27 additions & 0 deletions .chloggen/kubeletstats-start-changing-cpu-utilization.yaml
Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
# Use this changelog template to create an entry for release notes.

# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
change_type: enhancement

# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
component: kubeletstatsreceiver

# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`).
note: Add new `*.cpu.usage` metrics.

# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
issues: [25901]

# (Optional) One or more lines of additional information to render under the primary note.
# These lines will be padded with 2 spaces and then inserted directly into the document.
# Use pipe (|) for multiline entries.
subtext:

# If your change doesn't affect end users or the exported elements of any package,
# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
# Optional: The change log or logs in which this entry should be included.
# e.g. '[user]' or '[user, api]'
# Include 'user' if the change is relevant to end users.
# Include 'api' if there is a change to a library API.
# Default: '[user]'
change_logs: []
30 changes: 27 additions & 3 deletions receiver/kubeletstatsreceiver/documentation.md
Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@ metrics:

### container.cpu.time

Container CPU time
Total cumulative CPU time (sum of all cores) spent by the container/pod/node since its creation

| Unit | Metric Type | Value Type | Aggregation Temporality | Monotonic |
| ---- | ----------- | ---------- | ----------------------- | --------- |
Expand Down Expand Up @@ -102,7 +102,7 @@ Container memory working_set

### k8s.node.cpu.time

Node CPU time
Total cumulative CPU time (sum of all cores) spent by the container/pod/node since its creation

| Unit | Metric Type | Value Type | Aggregation Temporality | Monotonic |
| ---- | ----------- | ---------- | ----------------------- | --------- |
Expand Down Expand Up @@ -220,7 +220,7 @@ Node network IO

### k8s.pod.cpu.time

Pod CPU time
Total cumulative CPU time (sum of all cores) spent by the container/pod/node since its creation

| Unit | Metric Type | Value Type | Aggregation Temporality | Monotonic |
| ---- | ----------- | ---------- | ----------------------- | --------- |
Expand Down Expand Up @@ -386,6 +386,14 @@ metrics:
enabled: true
```

### container.cpu.usage

Total CPU usage (sum of all cores per second) averaged over the sample window

| Unit | Metric Type | Value Type |
| ---- | ----------- | ---------- |
| {cpu} | Gauge | Double |

### container.uptime

The time since the container started
Expand Down Expand Up @@ -426,6 +434,14 @@ Container memory utilization as a ratio of the container's requests
| ---- | ----------- | ---------- |
| 1 | Gauge | Double |

### k8s.node.cpu.usage

Total CPU usage (sum of all cores per second) averaged over the sample window

| Unit | Metric Type | Value Type |
| ---- | ----------- | ---------- |
| {cpu} | Gauge | Double |

### k8s.node.uptime

The time since the node started
Expand All @@ -434,6 +450,14 @@ The time since the node started
| ---- | ----------- | ---------- | ----------------------- | --------- |
| s | Sum | Int | Cumulative | true |

### k8s.pod.cpu.usage

Total CPU usage (sum of all cores per second) averaged over the sample window

| Unit | Metric Type | Value Type |
| ---- | ----------- | ---------- |
| {cpu} | Gauge | Double |

### k8s.pod.cpu_limit_utilization

Pod cpu utilization as a ratio of the pod's total container limits. If any container is missing a limit the metric is not emitted.
Expand Down
1 change: 1 addition & 0 deletions receiver/kubeletstatsreceiver/internal/kubelet/cpu.go
Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ func addCPUUsageMetric(mb *metadata.MetricsBuilder, cpuMetrics metadata.CPUMetri
}
value := float64(*s.UsageNanoCores) / 1_000_000_000
cpuMetrics.Utilization(mb, currentTime, value)
cpuMetrics.Usage(mb, currentTime, value)

if r.cpuLimit > 0 {
cpuMetrics.LimitUtilization(mb, currentTime, value/r.cpuLimit)
Expand Down

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