From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: John Stultz <john.stultz@linaro.org>,
Arnd Bergmann <arnd@arndb.de>, Tony Lindgren <tony@atomide.com>,
Peter Zijlstra <peterz@infradead.org>,
Matt Sealey <matt@genesi-usa.com>,
LKML <linux-kernel@vger.kernel.org>, Ben Dooks <ben@simtec.co.uk>,
Ingo Molnar <mingo@redhat.com>,
Linux ARM Kernel ML <linux-arm-kernel@lists.infradead.org>
Subject: Re: One of these things (CONFIG_HZ) is not like the others..
Date: Tue, 29 Jan 2013 10:06:21 +0000 [thread overview]
Message-ID: <20130129100621.GO23505@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <51076FA2.9070002@ti.com>
On Tue, Jan 29, 2013 at 12:13:46PM +0530, Santosh Shilimkar wrote:
> To avoid the server latency, we didn't do continuous sync. The time was
> synced in the beginning and after 62.5 hours (#ntpd -qg) and the drift
> of about 174 ms was observed. As you said this could be because of
> server sync time along with probably some addition from system calls
> from #ntpd. As mentioned, the other run with HZ = 128 which started
> 15 hours 20 mins is already showing about 24 mS drift now. I will
> let it run for couple of more days just to have similar duration run.
Hmm. I wonder if ntpd -qg will cause ntp to read the drift file and
adjust the kernel time keeping using that information...
next prev parent reply other threads:[~2013-01-29 10:11 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-21 20:01 One of these things (CONFIG_HZ) is not like the others Matt Sealey
2013-01-21 20:41 ` Arnd Bergmann
2013-01-21 21:00 ` John Stultz
2013-01-21 21:12 ` Russell King - ARM Linux
2013-01-21 22:18 ` John Stultz
2013-01-21 22:44 ` Russell King - ARM Linux
2013-01-22 8:27 ` Arnd Bergmann
2013-01-21 22:20 ` Matt Sealey
2013-01-21 22:42 ` Russell King - ARM Linux
2013-01-21 23:23 ` Matt Sealey
2013-01-21 23:49 ` Russell King - ARM Linux
2013-01-22 0:09 ` Matt Sealey
2013-01-22 0:26 ` Matt Sealey
2013-01-21 21:14 ` Matt Sealey
2013-01-21 22:36 ` John Stultz
2013-01-21 22:49 ` Russell King - ARM Linux
2013-01-21 22:54 ` Matt Sealey
2013-01-21 23:13 ` Russell King - ARM Linux
2013-01-21 23:30 ` Matt Sealey
2013-01-22 0:02 ` Russell King - ARM Linux
2013-01-22 0:38 ` John Stultz
2013-01-22 0:51 ` John Stultz
2013-01-22 1:06 ` Matt Sealey
2013-01-22 1:18 ` Russell King - ARM Linux
2013-01-22 1:56 ` Matt Sealey
2013-01-22 1:31 ` John Stultz
2013-01-22 2:10 ` Matt Sealey
2013-01-31 21:31 ` Thomas Gleixner
2013-01-21 21:02 ` Matt Sealey
2013-01-21 22:30 ` Arnd Bergmann
2013-01-21 22:45 ` Russell King - ARM Linux
2013-01-21 23:01 ` Matt Sealey
2013-01-21 21:03 ` Russell King - ARM Linux
2013-01-21 23:23 ` Tony Lindgren
2013-01-22 6:23 ` Santosh Shilimkar
2013-01-22 9:31 ` Arnd Bergmann
2013-01-22 10:14 ` Santosh Shilimkar
2013-01-22 14:51 ` Russell King - ARM Linux
2013-01-22 15:05 ` Santosh Shilimkar
2013-01-28 6:08 ` Santosh Shilimkar
2013-01-29 0:01 ` John Stultz
2013-01-29 6:43 ` Santosh Shilimkar
2013-01-29 10:06 ` Russell King - ARM Linux [this message]
2013-01-29 18:43 ` John Stultz
2013-01-22 17:31 ` Arnd Bergmann
2013-01-22 18:59 ` John Stultz
2013-01-22 21:52 ` Tony Lindgren
2013-01-23 5:18 ` Santosh Shilimkar
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