[erlang-questions] erlang:system_monitor in production?
Wed Apr 29 16:50:19 CEST 2015
Is it OK to have erlang:system_monitor permanently enabled in production?
One problem with `erlang:system_monitor/X` combined with an option such as
is that, for each GC, the C equivalent of `erlang:now/0` - which has some
very well known overhead - is called before and after each GC:
In other words, keeping long_gc monitoring enabled will add a couple of
sync points for each GC.
Disclaimer: It was not me discovering this, but a colleague, so not taking
any merit or blame for the discovery.
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