This time I take an a bit unconventional approach towards defining performance management. The idea for this post came through a number of customer engagements, where the same question came up over and over again: “How do we start with Application Performance Management and what should we do?” Over time I developed a simple model [...]
Searching for memory leaks can easily become an adventure – fighting through a jungle of objects and references. When the leak occurs in production time is short and you have to act fast. Like in a treasure hunt, we have to interpret signs, unravel mysteries to finally find the “lost” memory. Memory leaks – together [...]
In this post I will address top ten reports and their usefulness in performance engineering. Regularly I hear people saying: “Can you show me the top ten database statements” or something similar. Their approach to performance engineering is to look at the slowest or most time-consuming statements and then make them faster. While this is [...]
In this third article of my Performance Almanac I discuss the role of overhead in performance management. As a performance management solution provider we’re frequently asked “How much overhead does your solution have?” This question is however a bit more complex to answer than just giving a single number. When discussing this topic I have [...]
2010 is over and there has been a log going on in the application performance space. We started this project at the beginning of the year inspired by Stoyan Stefanov’s performance advent calendar of 2009. (There is also one for 2010). Now twelve month later we have our 2010 performance almanac available. According to wikipedia an almanac [...]
Troubleshooting of performance problems is very often – if not almost always – viewed as a reactive activity. Frankly, I have often seen it done in such a reactive as a firefight; however effective troubleshooting should build upon a solid diagnostics process. If you handle troubleshooting as if firefighting rather than based on solid diagnosis, [...]
