Tag Archives: kiocb

Linux上Oracle是否使用异步io的诊断

客户的数据库IO负载较重,检查后发现并未设置异步IO。 整个数据库的负载都集中在IO相关的等待上: Top 5 Timed Foreground Events Event Waits Time(s) Avg   wait (ms) %   DB time Wait   Class log   file sync 697,116 70,128 101 36.29 Commit db   file sequential read 2,982,135 54,498 18 28.20 User … Continue reading

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