[`slack-19.0`] backport: bug: Change connection pool idle expiration logic (19004)#763

Merged

tanjinx merged 8 commits intoslack-19.0from

Dec 11, 2025

Commits on Dec 10, 2025

Change how we expire idle connections.

arthurschreiber
authored and
tanjinx
committed
Add a test.

arthurschreiber
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tanjinx
committed
Loosen up test requirements.

arthurschreiber
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tanjinx
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Expire only up to 50% of the connections, and add some comments.

arthurschreiber
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tanjinx
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Also pre-allocate the valid connections slice.

arthurschreiber
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tanjinx
committed
Skip slice allocations for empty stacks.

arthurschreiber
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tanjinx
committed
Fix benchmark setup.

arthurschreiber
authored and
tanjinx
committed
fix b.Loop
tanjinx
committed