https://thecodersblog.com/tag/database-tuning/Recent content in Database Tuning on The Coders BlogHugoen-usWed, 29 Apr 2026 16:57:18 +0000https://thecodersblog.com/linux-kernel-7-0-preemption-regression-impact-on-postgresql-2026/Wed, 29 Apr 2026 16:57:18 +0000https://thecodersblog.com/linux-kernel-7-0-preemption-regression-impact-on-postgresql-2026/<p>In April 2026, the Linux Kernel 7.0 release promised evolutionary advancements, but for PostgreSQL users, it delivered a brutal, silent performance regression, abruptly halving throughput on critical production workloads without a single error message.</p> <h2 id="the-silent-killer-how-linux-70-blindfolded-postgresql">The Silent Killer: How Linux 7.0 Blindfolded PostgreSQL</h2> <p>The eagerly awaited release of Linux Kernel 7.0 in early 2026 was met with the usual anticipation within the open-source community. Touted for its efficiency improvements and new hardware support, it was expected to be a solid, if not revolutionary, upgrade. Yet, for database administrators and cloud engineers managing high-performance PostgreSQL instances, it brought an unforeseen and devastating impact.</p>