3 ms·
I think thechao means the stuff you get from perf where it looks a bit like the output of pstack. But I'd like a clarification too.
by fnord123 9y ago
I think thechao means the stuff you get from perf where it looks a bit like the output of pstack. But I'd like a clarification too.
- thechao 9y agoThe tooling I use records backtraces at some sampling frequency. The obvious sorting is from the root call site (_start), down. However, while that sorting shows the worst offending single backtrace, it can be a bit impractical once the top offenders (in terms of perf) have been fixed. Instead, I like to see an inverted tree: reverse every backtrace then create a tree. This method tends to show systemic issues.