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Tune Linux Kernel Parameters For PostgreSQL Optimization

Percona

Poorly configured OS kernel parameters can cause degradation in database server performance. Therefore, it is imperative that these parameters are configured according to the database server and its workload. SHMMAX / SHMALL. The PostgreSQL documentation contains more information about shared memory configuration.

Tuning 58
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SQL Server I/O Basics Chapter #2

SQL Server According to Bob

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