[erlang-questions] trouble with erlang or erlang is a ghetto

Jon Watte <>
Mon Aug 1 01:00:46 CEST 2011


> One problem is that it's hard to do detailed profiling on complex
> real-world applications. The issues limiting scalability might well be
> wholly unrelated to core VM aspects such as GC, scheduling and message
> passing. In the first SMP experiments with Ericsson's Telephony Gateway
> Controller, the big bottleneck was the big lock protecting the ports and
> linked-in drivers.
>


Speaking of which: what *is* best practice for profiling bottlenecks in a
big Erlang system/application?
I've read the Erlang and OTP books, but they don't talk about it, and
trapexit.org or other references are also vexingly vague on this subject.

Sincerely,

jw
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