From: David Brownell <david-b@pacbell.net>
To: hugh@veritas.com
Cc: phdm@macqel.be, mpm@selenic.com, linux-kernel@vger.kernel.org
Subject: Re: RTC subsystem and fractions of seconds
Date: Sat, 06 Jan 2007 18:54:24 -0800 [thread overview]
Message-ID: <20070107025425.0A7C21FAC07@adsl-69-226-248-13.dsl.pltn13.pacbell.net> (raw)
In-Reply-To: <Pine.LNX.4.64.0701070108001.1428@blonde.wat.veritas.com>
> > Hmm ... "looping" fights against "quickly"; as would "wait for next
> > update IRQ" (on RTCs that support that). But it would improve precision,
> > at least in the sense of having the system clock and that RTC spending
> > less time with the lowest "seconds" digit disagreeing.
> >
> > This is something you could write a patch for, n'est-ce pas?
>
> If you're thinking of going that way,
Philippe seemed to be ...
> it'd be courteous to CC Matt,
> who devoted some effort to removing just that loop in 2.6.17 ;)
Hmm ... "git whatchanged drivers/rtc/hctosys.c" shows no such change.
So I can't find any record of such a change or its rationale.
- dave
next prev parent reply other threads:[~2007-01-07 2:54 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-06 3:49 RTC subsystem and fractions of seconds David Brownell
2007-01-06 23:26 ` Philippe De Muyter
2007-01-06 23:52 ` David Brownell
2007-01-07 1:11 ` Hugh Dickins
2007-01-07 2:54 ` David Brownell [this message]
2007-01-07 9:43 ` Hugh Dickins
2007-01-07 10:02 ` Philippe De Muyter
2007-01-07 10:14 ` Philippe De Muyter
2007-01-08 2:10 ` David Brownell
2007-01-08 10:25 ` Philippe De Muyter
-- strict thread matches above, loose matches on Subject: below --
2007-01-07 22:31 Philippe De Muyter
2007-01-06 2:29 Philippe De Muyter
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