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From: konsolebox <konsolebox@gmail.com>
Newsgroups: gnu.bash.bug
Subject: Re: Add sleep builtin
Date: Mon, 20 Aug 2018 01:12:01 +0800
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To: Clint Hepner <clint.hepner@gmail.com>
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On Mon, Aug 20, 2018 at 12:26 AM, Clint Hepner <clint.hepner@gmail.com> wrote:
>
>> On Aug 19, 2018, at 10:25 AM, konsolebox <konsolebox@gmail.com> wrote:
>>
>> Hi Chet,
>>
>> The sleep command is often used in loops and using the external sleep
>> is expensive.
>
> Expensive is relative, as the time spent actually sleeping probably dwarfs the startup time.

Forking is expensive, and collectively is hugely expensive. The
external sleep is also yet another child process to manage.

> If not, you probably want to find an alternative to polling anyway.

Sure, that would be for another solution. Meanwhile I have a patch
which adds about 10 lines of significant runtime code to offer.

-- 
konsolebox