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Improve multitask performance #273

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Nov 5, 2018
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Improve multitask performance #273

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3 changes: 2 additions & 1 deletion lib/rake/task.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -248,7 +248,8 @@ def invoke_prerequisites_concurrently(task_args, invocation_chain)# :nodoc:
r.invoke_with_call_chain(prereq_args, invocation_chain)
end
end
futures.each(&:value)
# Iterate in reverse to improve performance related to thread waiting and switching
futures.reverse_each(&:value)
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@jsm Can you add comment for performace reason about reverse_each ?

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@hsbt Updated, let me know if you think I need to add more detail.

end

# Format the trace flags for display.
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