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Database Administration
Reference : Database Startup Parameters : Alphabetical listing of database startup parameters : Pin Shared Memory (-pinshm)
 
Pin Shared Memory (-pinshm)
Operating system and syntax
UNIX
-pinshm
Use with
Maximum value
Minimum value
Single-user default
Multi-user default
DBS
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The Pin Shared Memory (-pinshm) parameter does not have any arguments.
Using -pinshm will prevent the OS from swapping shared memory contents to disk, which can help improve performance. Pin Shared Memory (-pinshm) is only supported on UNIX platforms, excluding IBM AIX.