erlanglab / erlangpl

Tool for developers working with systems running on the Erlang VM (BEAM). It helps with performance analysis.
http://www.erlang.pl/
Apache License 2.0
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Weird issue when visualizing GenStage pipelines #53

Open Arkham opened 7 years ago

Arkham commented 7 years ago

Hi guys,

this project is really cool! I started playing with it to visualize GenStage pipelines and I bumped into a weird behaviour. You can find my code here: https://github.com/Arkham/genstaged

My GenStage setup is:

So I booted the app with EPL and amazing, everything works perfectly! But then I commented out these lines (https://github.com/Arkham/genstaged/blob/master/lib/genstaged/consumer.ex#L16-L18) when I used to print the received events and suddenly I don't see anything anymore in my performance lab. Here's a gif

ezgif com-optimize

arkgil commented 7 years ago

Definitely looks wierd 😟 Sorry for responding so late @Arkham, I'll try to investigate 🙂