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⚡ Bolt: Memoize QueueEntry to prevent unnecessary re-renders - #1361

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bolt-memoize-queue-entry-9676223885041787366
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bolt-memoize-queue-entry-9676223885041787366

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@kshramt

@kshramt kshramt commented Sep 9, 2026

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💡 What: Wrapped QueueEntry and _QueueEntry components in React.memo().
🎯 Why: To prevent unnecessary re-renders during virtualized list scrolling and when unrelated parent state changes.
📊 Impact: Reduces React render cycle time and avoids cascading re-renders across virtualized list items.
🔬 Measurement: Verify with React DevTools Profiler by scrolling the list and checking component render counts.


PR created automatically by Jules for task 9676223885041787366 started by @kshramt

Co-authored-by: kshramt <876546+kshramt@users.noreply.github.com>
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💡 Codex Review

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Reviewed commit: d0bbc54c89

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Comment thread client/src/QueueEntry.tsx
<div className="w-[1px] h-[1px]" /> // `null` is not allowed as Virtuoso does not allow 0-height elements.
);
};
export const QueueEntry = React.memo(

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P1 Badge Add coverage for the memoized render behavior

Add a component test that verifies a parent-only rerender is skipped while Redux changes to node existence or status still update the entry. This commit introduces two memoization boundaries without any corresponding test, leaving both the intended optimization and the selector-driven update behavior unprotected despite the repository requirement to add tests for changes.

AGENTS.md reference: AGENTS.md:L3-L3

Useful? React with 👍 / 👎.

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