High level goal: - I have an application with significant number of goroutine experiencing latency issues. I want to detect and dissect where those issues arise and determine how can I fix them. For that I’ve use go tool trace
Middle-level features: - I want to filter event in the catapult <https://github.com/catapult-project/catapult> viewer (( I cannot find documentation how to do it, and JS ecosystem I’m not really proficient in )) - Since I’m using errgroups, event names are all “$(pwd)/vendor/golang.org/x/sync/errgroup.(*Group).Go.func1” Not really informative. I’d like to include/exclude specific stack frame from appearing on the regex level perhaps? e.g. if I have stack A ->B->C and I’m filtering C, I’m expecting to see only B on the summary, and A->B in the details - In chrome tracing format specification, it says there are event types. I cannot find how to do filtering on them in the catapult viewer What I’ve tried - I’ve looked over go tool trace source code, and cannot find the function to generate trace back from parsed trace into struct format. I could parse Chrome tracing format <https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU/preview> spec and do manual filtering there, but it’s work I’d rather avoid. - I’ve searched over documentation, tutorials and blogs for instructions how to use tracing effectively, but all examples I could find were for trivial, toy examples and haven’t done filtering, etc. Most docs are specific for chrome, but it still doesn’t mention filtering events by type Where I’m stuck - As I mentioned in this post, go tool trace is a powerful tool, but I cannot wield it properly. Sure, I could write some custom tool for one-off json-in -> json-out chrome tracing format filtering, but I’d prefer using catapults internals I guess, but finding good documentation for this use case seems hard, especially since I don’t want to dig through catapults JS codebase. -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
