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How SQL Server Tuning Helps Analyze Reponse Times
For DBAs, the newest take on application and SQL performance improvement allows them to manage the database with a better understanding of the one thing that can really help improve overall performance: recognizing end user wait time and learning how to fix it. This study is also referred to often as wait time analysis and it helps IT to merge their SQL performance tuning while delivering service level performance for end users.
Explore some of the benefits of SQL performance tuning.
Rather than watching server health statistics and making guesses about their performance impact, response time methods measure the time taken to complete a desired operation. These implementations, when used to their fullest, separate information into measurable steps and can help point out where the application is facing delays. It stands to reason that because the database is solely responsible for responding to users requests that response time is a key indicator of what time of performance tuning should be done.
Response Time vs. Conventional Analysis
Typical SQL performance tuning tools focus on server health measures and execution ratios.Normally, SQL performance tuning tools measure health and execution ratios. The problem with this however is that even the most refined of these cannot offer an insight into then user experience or show where the issue actually began. Simply seeing that an application took place thousands of times doesn’t say anything about whether it was involved with, or was the cause of a delay in application response time.
Key criteria to distinguish Response Time vs. Conventional analysis methods:
- Response time is measured from the beginning request to end response.
- Every SQL query is measured separately so that the response time can be looked at individually. When the traditional total response time was measured in the past, the information was not as useful.
- The discrete internal steps are identified when the SQL query is processed. Treating the instance as a black-box without seeing where the time is consumed internally does not help problem solving.
See how SQL server tuning can help.
How to Have Success with SQL Server Tuning on the First Try
With SQL server tuning with response time analysis the exact location and source of the problem is highlighted for the DBA. This means that preventative action can be taken before wait time affects end-user service levels and further SQL Server tuning complications.