Decrease run-to-run variance of the bare metal runner#923

Merged

epompeii merged 11 commits into

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claude/runner-variance-optimization-293nsj

Jul 18, 2026

Commits on Jul 18, 2026

Extend host tuning and fix runner run CPU isolation
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Isolate non-sandboxed benchmark runs on benchmark cores
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Add cpuset isolated partition and Firecracker vCPU pinning
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Add guest kernel determinism params and host THP control
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Address review: partition restore gap and controller enablement
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Document crash-restore limits, THP zero-only encoding, and pinning scope
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Clarify review nits: flag polarity, pinning scope, metrics asymmetry
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Add nosandbox metrics scenario and concurrent-runner doc note
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Disable swap for local run cgroups, mirroring the Firecracker path
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Build CPU layout from online CPU IDs, normalize tuning output
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Address review: effective mems, cgroup.kill reaping, host tuning lock
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