Improve directory cache filesystem performance#2212

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rejuvenile wants to merge 8 commits intoTraceMachina:mainfrom

rejuvenile:pr/08-dircache-perf

Commits on Mar 11, 2026

Upgrade dependencies and build config

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claude
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Commits on Mar 12, 2026

Improve store pipeline reliability, filesystem performance, and caching

rejuvenile
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claude
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Improve gRPC protocol handling, error reporting, and server config

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claude
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Improve scheduler dispatch, fairness, and reliability

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claude
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Improve worker execution pipeline with batch fetch and upload

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claude
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Add peer-to-peer blob sharing with WorkerProxyStore

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claude
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Add directory cache for subtree reuse across actions

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claude
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Improve directory cache filesystem performance
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