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Last active February 12, 2018 18:49
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Vagrant snippet to set VirtualBox guest CPU count to the number of host cores on Linux or OS X (broken 2018)
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Gemfile
gem 'concurrent'
Raw
Vagrantfile
require 'concurrent'
config.vm.provider "virtualbox" do |vb|
v.cpus = Concurrent.physical_processor_count
end
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updated for 2018

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