From: Robert Love <rml@tech9.net>
To: mark manning <mark.manning@fastermail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: nanosleep
Date: 10 Apr 2002 01:57:16 -0400 [thread overview]
Message-ID: <1018418240.908.225.camel@phantasy> (raw)
In-Reply-To: <20020410044156.2881.qmail@fastermail.com>
On Wed, 2002-04-10 at 00:41, mark manning wrote:
> thanx - how much of a difference should i expect - i know the syscall is
> asking for at least the required ammount but that the task switcher might
> not give me control back for a while after the requested delay but i was
> expecting to be a little closer to what i had asked for - this isnt critical
> of corse but i would like to know what to expect.
The minimum granularity of the timer is 1/HZ, which on a i386 is only
10ms.
If you want high-resolution timers, check out the high-res-timers
project at http://high-res-timers.sf.net/ - they implement POSIX timers
(which include a nanosleep call) with very high resolution (1/cpu
clock).
Robert Love
next prev parent reply other threads:[~2002-04-10 5:57 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-10 4:41 nanosleep mark manning
2002-04-10 5:57 ` Robert Love [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-04-10 5:57 nanosleep mark manning
2002-04-10 6:01 ` nanosleep Robert Love
2002-04-13 21:53 ` nanosleep andrew may
2002-04-14 20:37 ` nanosleep H. Peter Anvin
2002-04-10 4:42 nanosleep mark manning
2002-04-10 5:47 ` nanosleep H. Peter Anvin
2002-04-10 3:22 nanosleep mark manning
2002-04-09 23:24 nanosleep mark manning
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