Re: cursor: pin S wait on X

Charles:


Cursor: pin S wait on X is used like a replacement to library cache
pin either during compiling the child or the execution of the KGL
object. You see this wait when the mutex is held by the other session
on X mode.

You can look the V$mutex_sleep views to find out the requesting
session and blocking session and deal this issue like the same old
library cache pin waits.

If you want the traditional library cache mechanism to be used for
library cahce operations, you can turn this feature (!) off by setting
the parameter _use_kks_mutex_pin to false.
Other alternative is to look in the mutex_sleep view and find the
locations of the waits. This will give a clear picture on which
location it is waiting for that wait.

--
Best Regards,
K Gopalakrishnan
Co-Author: Oracle Wait Interface, Oracle Press 2004
http://www.amazon.com/exec/obidos/tg/detail/-/007222729X/
--
http://www.freelists.org/webpage/oracle-l


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