From: john stultz <johnstul@us.ibm.com>
To: zippel@linux-m68k.org
Cc: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org
Subject: Re: [NTP 0/9] NTP patches
Date: Wed, 16 Aug 2006 16:07:27 -0700 [thread overview]
Message-ID: <1155769647.6785.67.camel@localhost.localdomain> (raw)
In-Reply-To: <20060810000146.913645000@linux-m68k.org>
On Thu, 2006-08-10 at 02:01 +0200, zippel@linux-m68k.org wrote:
> Here is my current version of the NTP patches.
> They precalculate as much possible and get rid of a lot of rather crude
> compensation code. The tick length is now a much simpler value, updated
> once a second, which greatly reduces the dependency on HZ.
> I rebased the patches against current -mm + John's ntp.c patch.
Hey Roman,
How much real-world testing have you done with these patches? I've been
running w/ this set of patches for a few days and I've been noticing my
system is having difficulties synching up w/ the NTP server.
I haven't been logging anything, so its currently uncertain data, but
normally I've seen NTP sync the time within 1-2ms in just an hour or so,
however since this morning (~6 hours ago) I'm seeing it still 10ms off.
I'm going to let it run for the rest of the day then try to bisect the
patches to see where things went wrong. I'll let you know as soon as I
find anything.
thanks
-john
next prev parent reply other threads:[~2006-08-16 23:08 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-10 0:01 [NTP 0/9] NTP patches zippel
2006-08-10 0:01 ` [NTP 1/9] add ntp_update_frequency zippel
2006-08-10 0:01 ` [NTP 2/9] add time_adj to tick length zippel
2006-08-10 0:01 ` [NTP 3/9] add time_freq " zippel
2006-08-10 0:01 ` [NTP 4/9] prescale time_offset zippel
2006-08-10 0:01 ` [NTP 5/9] add time_adjust to tick length zippel
2006-08-20 15:33 ` Atsushi Nemoto
2006-08-20 17:25 ` Roman Zippel
2006-08-10 0:01 ` [NTP 6/9] remove time_tolerance zippel
2006-08-10 0:01 ` [NTP 7/9] convert time_freq to nsec value zippel
2006-08-10 0:01 ` [NTP 8/9] convert to the NTP4 reference model zippel
2006-08-10 18:49 ` Andrew Morton
2006-08-10 19:14 ` Roman Zippel
2006-08-10 19:29 ` Andrew Morton
2006-08-10 19:59 ` Roman Zippel
2006-08-10 0:01 ` [NTP 9/9] cleanup defines and comments zippel
2006-08-16 23:07 ` john stultz [this message]
2006-08-17 10:32 ` [NTP 0/9] NTP patches Roman Zippel
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