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Re: Add sleep builtin

From: konsolebox
Subject: Re: Add sleep builtin
Date: Mon, 20 Aug 2018 01:12:01 +0800

On Mon, Aug 20, 2018 at 12:26 AM, Clint Hepner <address@hidden> wrote:
>> On Aug 19, 2018, at 10:25 AM, konsolebox <address@hidden> 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.


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