<div dir="ltr">I have a different option and isn&#39;t sure how Apache Portable Runtime work for Unsafe*Pointer along with Dispatch? I think that reduce overhead significantly?<div><br><div><a href="https://benchmarksgame.alioth.debian.org/u64q/program.php?test=binarytrees&amp;lang=swift&amp;id=9" target="_blank">https://benchmarksgame.alioth.<wbr>debian.org/u64q/program.php?<wbr>test=binarytrees&amp;lang=swift&amp;<wbr>id=9</a><br></div></div></div>