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July 22, 2014 / doganay

W00X processes

These are space management coordinator (SMCO) processes.

Solution:

If your database have huge counts of transactions per second you may consider to
increase autoextend values of datafiles or resize them and autoextend off.

Also, there is a patch for this:

Patch 13871316: SPACE BACKGROUND SLAVE WNNN PROCESSES ARE PERIODICALLY CPU BOUND (90 TO 100%)

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