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# shmmax
Purpose: Specifies maximum shared memory segment size.
Values: Dynamic with maximum value of 256 MB for 32-bit processes and 0x80000000u for 64-bit
Display: N/A
Change: N/A
Diagnosis: N/A
Tuning: Does not require tuning because it is dynamically adjusted as needed by the kernel.
You can see current shared memory usage with ipcs -m