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Database Performance Troubleshooting Methodologies and Dimensions

When You have assigned a task to optimize a database or performance tuning of an application. Then there could be various dimensions to perform this task because slow performance of application could be many more which can not describe on single page but it can be summary in a table like below I found this table that shows database performance and slow running application performance dimension and there activity start procedures.

Performance Dimensions Percentage Values Process Strength Activity StrengthRemarks
Application Design and Business process 25.00% Long Process Lower priority Module wise activity.
Database Schema Design - Logical 15.00% Medium Follow best practices Required short downtime Module wise activity.
Database Maintenance 15.00%Quick processRequired on OLTPShort downtime weekly or monthly.
Indexing 15.00% Quick processRequired on OLTPShort downtime weekly or monthly Module wise activity.
Server Hardware (CPU/Memory/other) 12.00% Medium process Follow best practices Long process and dependency on business process infrastructure & organization financial plans.
Database Physical Layout (file/group) 7.00% Medium Follow best practicesRequired short downtime Dependency on all application modules.
Platform Virtualization vs physical 6.00% Medium process Follow best practices Long process and dependency on business process infrastructure & organization financial plans.
IO Subsystem Design/Tuning(RAID )

5.00%Medium process Follow best practicesLong process and dependency on business process infrastructure & organization financial plans.

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