linux-kernel - Re: Does 2.6.26 provide nanosecond time to the user?

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Message-ID:  <yw1x1w1srmqq.fsf@thrashbarg.mansr.com>
Date:	Fri, 18 Jul 2008 02:42:53 +0100
From:	Måns Rullgård <mans@...sr.com>
To:	linux-kernel@...r.kernel.org
Subject:  Re: Does 2.6.26 provide nanosecond time to the user?

Reg Clemens <reg@....com> writes:

> Im confused.
> (sorry I havent been following the linux-kernel mailing list on this)
>
> Does 2.6.26 use nanosecond time
>     (1) internally?
>     (2) provide it to the user?
>
> I see no way to turn it on/off in xconfig.
> Yet I do see STA_NANO defined in sys/timex.h which is a good start.
>
> and IF it provides it to the user, what do I use to get nanosecond time.
> My search with man -k for timespec turns up
>       sys_clock_getres
> and sys_clock_gettime
>
> or possibly clock_getres and clock_gettime, the man pages use both,
> but NONE of these entry points seem to exist in my system.

You might need to link with -lrt to get those functions.

-- 
Måns Rullgård
mans@...sr.com

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