ionutursuleanu
commented
4 years ago Hi @ross-everitt
If you see something like this it means glowroot doesn't know how to instrument your app(maybe an unsupported framework). You should check the profile section (flame graph) which shows time spent by method calls. As an example, if you generate a large file(pdf/excel) you'll see something like what you showed
Glowroot is a great product and helps me a lot with application tuning, however I'd really appreciate some help in understanding some of our slow traces. In many cases we see that the http request duration and the subsequent breakdown don't seem to account for all of the time which makes it difficult for us to diagnose issue. Any insight you have might be useful (this screenshot was of a Spring boot app accessed via an @Controller.
I've attached a screenshot to highlight the issue..