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• v0.6.17 dafed14972

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  perf(docker): one-shot container stats — fixes tail starvation on busy hosts

  LastSkywalker released this 2026-06-12 12:53:00 +03:00 | 217 commits to main since this release

  The daemon was healthy all along (docker ps 26ms, inspect 38ms): the
  per-container ContainerStats call without one-shot makes the daemon
  prime PreCPUStats with a second sample ~1s later, so each call costs
  ~1.2s. At 60+ containers / 8 workers the batch needs 10s+ and the tail
  of the container list (the oldest containers, consistently the same
  ones) ran out of module budget — their inspects died instantly on the
  exhausted parent context every cycle.

  ContainerStatsOneShot returns a single sample in ~30ms; both CPU
  percentages now derive from the inter-cycle cache (percentOfLimit no
  longer needs PreCPUStats). 68 containers now cost well under a second.

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