Follow-up: running 64 concurrent Codex subagents makes the UI laggy, likely CPU overload
daniel_mac8 · x · 2026-09-07
After raising Codex's subagent concurrency limit to 64, the author reports the Codex UI becomes laggy, probably from CPU overload on his machine. Those copying the config should weigh the parallelism gains against local resource limits.
Related event: Codex caps subagents at 3 by default; one config line unlocks 64(5 posts)→
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