From owner-freebsd-hackers@FreeBSD.ORG  Fri Apr 15 15:04:13 2005
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Date: Fri, 15 Apr 2005 17:04:08 +0200
From: Joerg Sonnenberger <joerg@britannica.bec.de>
To: freebsd-hackers@freebsd.org
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Subject: Re: MDELAY()
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On Fri, Apr 15, 2005 at 06:03:11AM -0700, ALeine wrote:
> dipjyoti.saikia@gmail.com wrote: 
> 
> > DELAY() in FreeBSD uses a busy loop . I am looking for something
> > like sleep_on_timeout() call in Linux . (dont' want to waste the CPU
> > cycles by  DELAY'ing)
> 
> You may want to check out timeout(9) / untimeout(9), see man 9 timeout
> for details.

You should not use timeout(9) without a very good reason, the callout_*
interface is prefered.

Joerg