Here's another topic.

Database Performance Issue – Basic Guidelines and Operating System Analysis [top, vmstat, free, iostat,sar] – PT 1:
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 What is a DB performance problem:
• CPU high?
• Not enough memory?
• I/O slow?
• Event with long waiting time?
• Hanging?

 General tuning guidelines
 Detecting performance problems:
 Database optimization methodology:
 Workload characteristics
 Waiting events

OS Analysis
==========
Top analysis
vmstat analysis
Memory analysis
Iostat analysis
SAR analysis

#PerformanceTuning #PT #top #vmstat #iostat #free #sar #RAC #exadata #oracle #oracledatabase #oracledba #database #database administration #databases

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