[erlang-questions] erlang:exit/1 eats lots of CPU time

Jayson Vantuyl <>
Tue Jan 5 12:19:54 CET 2010


What's the total time here?  I see that erlang:exit/1 is 99% of that process's time, and that process is 12% of total time, but how long are we talking about here?  I've seen results like that for short tests in a tight loop.  So, it's 99% of 12% of what?

On Jan 4, 2010, at 10:02 PM, Maxim Treskin wrote:

> Hello
> 
> I have tested software with Eprof. eprof:analyse() prints log which
> contains following strings:
> 
> ****** Process <0.229.0>    -- 12 % of profiled time ***
> erlang:exit/1                                  1          99 %
> 
> Erlang node whith this process really eats CPU time, so it is not a
> some bug of eprof. May be it is due to garbage collection of process
> data on exit? Increasing of min_heap_size up to value which really
> used by process has no effect.
> 
> How I can decrease CPU time consumption on exit for this process?
> 
> Thank you
> 
> -- 
> Maxim Treskin
> 
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