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docs: backport data-engine-number-of-cpu-cores setting to v1.12.1#1385

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derekbit merged 1 commit into
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copilot/backport-support-kubernetes-cpu-manager
Jul 3, 2026
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docs: backport data-engine-number-of-cpu-cores setting to v1.12.1#1385
derekbit merged 1 commit into
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copilot/backport-support-kubernetes-cpu-manager

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Copilot AI commented Jun 26, 2026

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Backports the data-engine-number-of-cpu-cores setting documentation from v1.13.0 (introduced in longhorn/longhorn-manager#4931) to content/docs/1.12.1/references/settings.md.

Changes

  • TOC — added Data Engine Number of CPU Cores entry after Data Engine CPU Mask
  • Data Engine CPU Mask — prepended note that this setting is ignored when Data Engine Number of CPU Cores is set
  • New section: Data Engine Number of CPU Cores ({"v2":"0"} default)
    • V2 Data Engine only; requires kubelet CPU manager policy set to static
    • Takes precedence over Data Engine CPU Mask
    • Minimum 2 cores recommended — single-core assignment starves SPDK RPC processing under heavy I/O load

Copilot AI changed the title [WIP] Backport support for Kubernetes CPU Manager in Longhorn V2 docs: backport data-engine-number-of-cpu-cores setting to v1.12.1 Jun 26, 2026
Copilot AI requested a review from mantissahz June 26, 2026 14:40
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@mantissahz
mantissahz marked this pull request as ready for review June 26, 2026 14:42
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mantissahz requested a review from a team as a code owner June 26, 2026 14:42

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LGTM

@derekbit
derekbit force-pushed the copilot/backport-support-kubernetes-cpu-manager branch from 83562c6 to 235c06d Compare July 1, 2026 09:15
@mantissahz
mantissahz force-pushed the copilot/backport-support-kubernetes-cpu-manager branch from 235c06d to b5bb093 Compare July 3, 2026 01:06
@derekbit
derekbit merged commit 6c971e4 into master Jul 3, 2026
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@derekbit
derekbit deleted the copilot/backport-support-kubernetes-cpu-manager branch July 3, 2026 07:49
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4 participants