Linux 7.0 broke PostgreSQL: preemption regression explained

Linux 7.0 introduced a CPU preemption regression that degrades PostgreSQL performance.

Published 12sem1 sourceNotable

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The fact

The issue affects highly parallelized workloads with lock contention.

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Dégradation sensible des performances PostgreSQL sur Linux 7.0

Auto-synthesis from 1 media source · identified on April 29, 2026