Love Your Crash Dumps
summary
Livebook notebooks connect to a remote BEAM, run rpc calls and parse erlang system_info procs output into interactive graphs that highlight processes by reductions, memory and stack size; perf and bcc + speedscope show C and Erlang frames and reveal 20% major vs 80% minor GC time; controlled termination produces an erl_crash.dump that e-lab / recon parsers can load and plot, and examples show reductions jumping from ~10 million to ~1 billion; works as a practical postmortem.
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chapters (10)
- 0:00Intro
- 1:50Motivations
- 7:55BPC
- 10:12LiveBook
- 12:40Remote Node
- 15:50Scatter Plot
- 22:34Let It Crash
- 23:04Postmortem
- 25:04Crash Dump Viewer
- 26:19Questions
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