Performance Engineering Interview Questions #15
Following are the Performance Engineering Interview Questions Set #15. Q. 71 How can you reduce the ‘Buffer Busy Waits’ identified in the AWR report? Ans: It can be reduced by: Q. 72 What are wait…
AWR – Instance CPU
In AWR, the ‘Instance CPU’ table comes under the ‘Report Summary’ section. Refer to the below figure: To analyse the ‘Instance CPU’ section, you must Look at the Host CPU and Instance CPU sections. The…
AWR – Host CPU
In AWR, the ‘Host CPU’ table comes under the ‘Report Summary’ section. Refer to the below figure: The following metrics are available in the ‘Host CPU’ table of an AWR report: CPUs The number of…
AWR – Wait Classes by Total Wait Time
In AWR, the ‘Wait Classes by Total Wait Time’ table comes under the ‘Report Summary’ section. Refer to the below figure: To analyse this section, firstly check for the ‘Wait Class’ column. If User I/O,…
AWR – Top 10 Foreground Events
In AWR, the ‘Top 10 Foreground Events’ table comes under the ‘Report Summary’ section. Refer to the below figure: The following metrics are available in the ‘Top 10 Foreground Events’ table of an AWR report:…
AWR – Buffer Hit Ratio – Analysis
What is Buffer Hit ratio OR Buffer Hit %? ‘Buffer Hit Ratio’ is measured by the percentage of times the data block is requested by the query and available in memory. It is also called…