Syntax. async is shorter, but can only pass args via capture. Then again, passing args via create is known to be problematic.

Without args: 

async(\&process);
async { process(); };
thread->create(\&process);

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With args: 

async { process($arg); };
thread->create(\&process, $arg);  # Safe??

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In reply to Re^2: wait for threads to end in parallel by ikegami
in thread wait for threads to end in parallel by pmarcoen

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