From: Jes Sorensen <jes@trained-monkey.org>
To: linux-ia64@vger.kernel.org
Subject: Re: [BUG, RFC] do_gettimeofday going backwards
Date: Fri, 17 Oct 2003 15:23:39 +0000 [thread overview]
Message-ID: <marc-linux-ia64-106640457019159@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-106497008007151@msgid-missing>
>>>>> "David" = David Mosberger <davidm@napali.hpl.hp.com> writes:
David> Then your time-interpolator is broken. As I have expained on
David> previous occasions (in particular in a mail to Jes),
David> last_nsec_offset must not be _cleared_ on a timer-tick.
David> Instead, it needs to be decremented by the timer tick period.
David> So in your case, last_nsec_offset would decrease from 1099000
David> to 99000.
Thats how my implementation works for 2.4 as well, however according
to what I have heard they are still seeing problems with it going
backwards, just not as frequently as before.
Cheers,
Jes
prev parent reply other threads:[~2003-10-17 15:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-01 1:00 [BUG, RFC] do_gettimeofday going backwards John Hawkes
2003-10-15 1:17 ` David Mosberger
2003-10-17 15:23 ` Jes Sorensen [this message]
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