2048 Operating System Speed Systems 
Percona
AUGUST 29, 2018
For optimum performance, a PostgreSQL database depends on the operating system parameters being defined correctly. PostgreSQL uses System V (SysV) that requires SHMMAX setting. So now it requires fewer bytes of System V shared memory. DETAIL: Failed system call was shmget(key=1, size=2072576, 03600).
SQL Server According to Bob
JANUARY 11, 2020
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