What causes database performance issues?

Question

Database performance issues are a common cause of web application bottlenecks. Most of these problems boil down to a lack of indexing, inefficient queries, and the misuse of data types, which can all be easily fixed. The challenge is identifying them before they reach production.

What are common causes of poor performance in databases?

Common Database ProblemsSlow Read-Write Speeds. Performance slowdowns can occur due to high latency for disk read/writes. ... Scaling Problems. ... Incorrect Virtual Machine Setup. ... Lack of Backup and Monitoring. ... Query Performance. ... User and Query Conflicts. ... Configuration. ... Capacity.

How do you troubleshoot a database performance issue?

Start by checking your wait stats1Ensure your TempDB database is configured optimally. ... 2Make sure you're running index maintenance frequently. ... 3Implement indexes that provide a benefit to your queries. ... 4Check your most expensive queries and stored procedures. ... 5Monitor your performance counters.

What affects SQL performance?

Table size: If your query hits one or more tables with millions of rows or more, it could affect performance. Joins: If your query joins two tables in a way that substantially increases the row count of the result set, your query is likely to be slow.

How do you improve performance on database side?

Tips to Increase Database Performance1Tip 1: Optimize Queries. ... 2Tip 2: Improve Indexes. ... 3Tip 3: Defragment Data. ... 4Tip 4: Increase Memory. ... 5Tip 5: Strengthen CPU. ... 6Tip 6: Review Access. ... 7SolarWinds Database Performance Analyzer (DPA) ... 8SolarWinds Database Performance Monitor (DPM)

Expert · Answer