Dynamic Management Views provide ways to analyze database performance and to find the cause behind bad-performing SQL server databases/instances. Bad performance can be due to: poor design, insufficient memory, poorly configured system, disk bottlenecks, poorly written queries and many others
Previously Windows System Monitor(perfmon.exe) and SQL server profiler were used to find the cause of bad-performance. Now, Dynamic Management Views can help a lot better.
Dynamic Management Views are categorized into 12 categories
- Common language runtime:
- Database: Provides details about database sizes, files used, and partition information.
- Database mirroring related: About mirroring and mirroed databases
- Execution related: Provides insight into query execution statistics.
- Full text search: Provides information on full-text catalogs, indexes, full-text crawl memory buffer
- Input/Output Related: Provides insights into I/O operations, I/O devices, and database file statistics.
- Index related: Database file statistics
- Query notification related: Insights into active query notifications subscriptions in the server
- Replication related: Insights into the workings of replication in the database
- Service Broker Related: Insights into the workings of Service Broker
- Sql server operating system related: Insights into the internal operations of the SQL Server OS.
- Transaction Related: Insights into the operations of active transactions
Performance Data Warehouse: A historical archive of periodic snapshots of the DMV data of interest. How can it help? the problem may occur only at night 3:00 a.m. and when there are not many users. If you want to fix the issue in the morning Performance Data Warehouse will be of great help.
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Post Data:2008-12-05 20:21:03
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