Finding blocking code in eventloops

[Alberto Klocker]

Hi All,

As we all know blocking code is cryptonite to async event loops, I was just wondering what techniques and profilers are best for finding code that should be moved to its own executor.

As one of the Youtube talks Norman gave a few years ago, something as innocent as a DNS lookup in the main pipeline can jam things up.

[Norman Maurer]

I think the best bet is really to attach a profiler like yourkit / mission control etc and check if the IO threads are blocked at some point and on which method calls. 

Bye,

Norman

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