cockroachdb / cockroachdb/cockroach

o11y: unusually large spike in CPU reported through console

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A-cluster-observability A-observability-inf C-bug O-testcluster P-3 T-observability
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Description

On the DRT cluster we're seeing the following chart:

![image](https://github.com/cockroachdb/cockroach/assets/18447034/cce28fbc-944f-4ed0-8706-69d02c3aa31b)

I can't tell if the metric reported is bad or if the system really reported 4349% as its CPU percentage.

Discussed further [here](https://cockroachlabs.slack.com/archives/C063CP41TG9/p1706889654092599).

Jira issue: CRDB-35824

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