I want to find code block(s) (actually spans) that work slowly after some code refactoring or adding new features.
In my example, I have three logical code blocks
1. process_request: 5sec -> get_from_db: 10sec -> send_respose: 5sec
2. process_request: 5sec -> get_from_db: 15sec -> send_respose: 5sec
But after the changes in the SQL query, the get_from_db block takes more time than before.
If I have 20-50 or more logical blocks it is not so easy to find out which spans take more time than before the refactoring.
As for jaeger it compares two spans by new blocks but not by the taken time.
But there is the same request (as mine), please see
https://github.com/jaegertracing/jaeger-ui/issues/296