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AIX OS requirements to implement Oracle parallelism (11gR2)

edited Jun 14, 2013 7:46AM in Database Administration (MOSC) 2 commentsAnswered
Hi ,

I implemented Oracle parallelism at instance level by using PARALLEL_DEGREE_POLICY=AUTO (11g feature).

In my application , only few queries have been automatically parallelized (PX servers appear in execution plans).

but no change in  execution time (like execution time in serialized execution).

I checked CPU and RAM and all parallel oracle parameters : OK

How can I check that no limitations exist at OS (AIX 6.1)  level to implement oracle parallelism ? OS capped ?

Best regards.

GD.

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