3.5.1 Matrix Server Release Notes

PolyServe Release Notes 30
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• disk_async_io = FALSE
• _lgwr_async_io = FALSE
• _dbwr_async_io = FALSE
If 10 DBWR slaves are not sufficient for a given workload, the Oracle
session wait event “free buffer waits” will be a predominant wait event as
reported through statspack or utlestat.sql. To address this, simply
increase the value assigned to the init.ora parameter dbwr_io_slaves.