Dprof – Distributed System Profiling and Tracing [pdf]

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Distributed system tracing:

http://www.erlang.org/doc/man/erlang.html#trace-3

Distributed system profiling:

http://www.erlang.org/doc/man/cprof.html

http://www.erlang.org/doc/man/eprof.html

http://www.erlang.org/doc/man/fprof.html

Nice higher level abstractions of both:

https://github.com/massemanet/eper

This is a nice set of links. I've been building a set of Mesos frameworks lately, and having tools to see the shape of the distributed work would be wonderful. Definitely some ideas here to copy!

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