Kernel settings
kernel.sem:semmns is total number of semaphores systemwide and default value is 32000
As per oracle documentation for 11gr2 he thumb rule to set it is
2 * sum (process parameters of all database instances on the system) + overhead for background processes + system and other application requirements.
As per oracle documentation for 11gr2 he thumb rule to set it is
2 * sum (process parameters of all database instances on the system) + overhead for background processes + system and other application requirements.
Currently I dont how many databases and aplication will be hosted on this linux server.
Can I set this value to very high range for eg 800000.
just wanted to understand whether it would this have any impact on the system.
Could you please let me know would it affect any performance by alloacting any resource if only 400000 process is actually used and my upper limit is 800000 .
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