Non-trivial performance problems

Tanel Poder

2010/04/03

Gwen Shapira has written an article about a good example of a non-trivial performance problem.

I’m not talking about anything advanced here (such as bugs or problems arising at OS/Oracle touchpoint) but that sometimes the root cause of a problem (or at least the reason why you notice this problem now) is not something deeply technical or related to some specific SQL optimizer feature or a configuration issue. Instead of focusing on the first symptom you see immediately, it pays off to take a step back and see how the problem task/application/SQL is actually used by the users or client applications.

In other words, talk to the users, ask how exactly they experience the problem and then drill down from there.

[Comments]
Click on Tweet to comment or ask a question! Keep the "via @tanelpoder" in the tweet text to notify me.
NB! Check out my 2019 online training classes here! Practical Linux Performance & Application Troubleshooting training (new), Advanced Oracle SQL Tuning training, Advanced Oracle Troubleshooting training. In addition to the online classes, all attendees will receive personal downloadable video recordings too!