[erlang-questions] Cost of doing +sbwt?

Jon Schneider <>
Tue Sep 1 15:28:13 CEST 2015


> CPU. Of note this cluster is a 9 node cluster with dual hex cores with
> hyperthreading for a total of 24 scheduler threads as well as a four

Could it be that you (or Erlang) have over-estimated the value of a
hypermarketing^Whyperthread so they're treading on each others's feet and
you'd benefit from fewer schedulers ? Even if you believe hyperthreads are
useful having fewer schedulers would surely reduce the likelihood of
locking contention.

Jon



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