From owner-freebsd-hackers  Sun Jan 23 19:48:31 2000
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To: Mikhail Teterin <mi@kot.ne.mediaone.net>
Subject: Re: kern/13644 
Cc: Dan Nelson <dnelson@emsphone.com>,
	Jason Evans <jasone@canonware.com>,
	David Schwartz <davids@webmaster.com>, bde@FreeBSD.ORG,
	hackers@FreeBSD.ORG
In-reply-to: Your message of "Sun, 23 Jan 2000 21:14:09 EST."
		<200001240214.VAA45195@rtfm.newton> 
References: <200001240214.VAA45195@rtfm.newton>  
Date: Sun, 23 Jan 2000 20:48:34 -0700
From: Warner Losh <imp@village.org>
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In message <200001240214.VAA45195@rtfm.newton> Mikhail Teterin writes:
: I understand.  And this will also  happen in case of  a simple printf().
: What I see, however, with select()  is that it _consistently_ takes 9-10
: msecs longer  then specified  to return. On  an idle  machine... Someone
: mentioned, that the  number of ticks is, actually,  rounded up. Perhaps,
: it should be rounded down?

Select(2) only guarantees that it will sleep no less than the time
specified for the timeout.  Rounding down will break this.

Warner


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