Redis: Duplicate Fixes and Event Loop Cleanup
Today's activity centers on the event loop and background I/O subsystem, with two separate contributors independently submitting the same background I/O shutdown fix, alongside a merged select-backend correctness fix and a shipped redis-cli latency percentiles feature.
Duration: PT2M37S
Episode overview
This episode is a short developer briefing from Redis.
It explains recent repository work in plain language.
- Show: Redis
- Published: 2026-07-10T13:14:45Z
- Audio duration: PT2M37S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Good day, and welcome to Redis, your developer briefing for July 10th, 2026.
The signal today is about cleanup at the core event loop and thread management layer, plus a notable duplicate submission worth flagging.
First, the duplicate: PRs 15448 and 15449, both from the same author, propose the same fix — a new background I/O shutdown function to prevent memory leaks when the server exits. Both add proper teardown of worker mutexes, condition variables, job lists, and synchronization pipes. Reviewers on both flagged the same…
Second theme: event loop correctness. PR 15446, merged today, fixes a subtle bug in the select-based event backend. Fds that were registered but not actually ready after a select call were still being counted as fired events. That inflated the apparent event count without doing any real work — a small but real…
Related to that layer, PR 15445 continues cleanup work tied to issue 14907, moving network byte counters into per-thread I-O stats to avoid cache-line false sharing — the same pattern already applied to read and write counters. And PR 15447 addresses replication under heavy write load: instead of buffering all…
Standalone but shipped: PR 15352, merged…
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