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Graviton4

2 mentions across all digests

AWS's custom ARM processor on which the PostgreSQL performance regression was observed during benchmarking.

/// Stats
First Seen2026-04-08
Last Seen2026-05-01
Total Mentions2
Last 7 Days1
Sources2
Peak Relevance4/5
Active Predictions0
/// Recent Stories
2026-04-29HIGH

Linux 7.0 Broke PostgreSQL: The Preemption Regression Explained

A 50% PostgreSQL performance cliff on Linux 7.0: AWS engineer traces the regression to the kernel's removal of PREEMPT_NONE and its clash with spinlock-based buffer management.

2026-04-08HIGH

AWS Engineer Reports PostgreSQL Performance Halved By Linux 7.0, But A Fix May Not Be Easy

Linux 7.0 scheduler changes halve PostgreSQL throughput on AWS; kernel maintainers want PostgreSQL to adopt RSEQ support instead of reverting the breaking change.

/// Connected Entities
ORGAWS
2 shared
PRDPostgreSQL
2 shared
PRDLinux 7.0
2 shared
USRSalvatore Dipietro
2 shared