feat: add cpu burst metrics #3795
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dims
approved these changes
Dec 18, 2025
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What?
Add CPU burst metrics to cAdvisor.
Why?
CPU burst is a cgroup v2 feature allowing containers to temporarily exceed CPU
quota using saved quota from previous periods. These metrucs will help monitor when containers exceed CPU quota using accumulated burst capacity for performance analysis and capacity planning.
How?
BurstsPeriodsandBurstTimefields toCpuCFSstructopencontainers/cgroupsv0.0.6BurstDatainsetCPUStats()container_cpu_cfs_burst_periods_totalandcontainer_cpu_cfs_burst_seconds_total