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A comment on Elixir v1.7 released. Parent comment

Re:Elixir v1.7 released by jhgg on Thursday July 26, 2018 @02:19PM (#17619614)
BEAM's default allocator settings will allocate often. It's just how the VM works. The erlang allocation framework: http://erlang.org/doc/man/erts_alloc.html is a complicated beast.

We were able to simulate this failure condition synthetically by inducing memory bandwidth pressure on the guest VM.

We noticed that during certain periods of time, not caused by any workload we ran, the time spent doing malloc/mmap would 10-20x, but the # of calls would not.

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Re:Elixir v1.7 released by bostonvaulter2 on Thursday July 26, 2018 @11:45PM (#17623295)
> We noticed that during certain periods of time, not caused by any workload we ran, the time spent doing malloc/mmap would 10-20x, but the # of calls would not.

I'm curious what tools you used to discover this

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Re:Elixir v1.7 released by jhgg on Friday July 27, 2018 @01:54AM (#17623771)
https://github.com/iovisor/bcc
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