Chris Albertson wrote:
I'd bet any musician could do better than 0.1 sec. If you are playing
piano and the timing of a note is off by as much as .1 sec it sounds
like an error.MIDI is used to record musical performances and it
uses a tick about every 10ms or 100 or 128 per second. That is
Hi All,
Thanks for the discussion and suggestions.
I accept there are disadvantages in syncing the local clock using ntpd
-q.
My only question was whether the drift file will be created/used/
updated by ntpd when it is used with -q option.
Thanks and Regards,
Prashant
On Thu, Mar 24, 2011 at 1:45 AM, prashant sherin pvs...@yahoo.com wrote:
Hi All,
Thanks for the discussion and suggestions.
I accept there are disadvantages in syncing the local clock using ntpd
-q.
My only question was whether the drift file will be created/used/
updated by ntpd when it is
oh, come off it. Your reaction time is nowhere near what ntp -q would
give you. Using ntp -q run once every hour, and assuming say a 20PPM
drift for the crystal, his clock would be out by less than a 100 ms due to
the
drifting, and your reaction time with your watch ( and wyour watch) are
On 2011-03-23, Hal Murray hal-use...@ip-64-139-1-69.sjc.megapath.net wrote:
oh, come off it. Your reaction time is nowhere near what ntp -q would
give you. Using ntp -q run once every hour, and assuming say a 20PPM
drift for the crystal, his clock would be out by less than a 100 ms due to
You can probably do better than that. That is for the reaction to
something that you do not expect. Ie, you have decide that the event has
occured and then send the messages to your finger to press. However for
the timing, you know exactly when it is going to occur. You can get
yourself into a
On 23.3.2011 8:07, Hal Murray wrote:
You can probably do better than that. That is for the reaction to
something that you do not expect. Ie, you have decide that the event has
occured and then send the messages to your finger to press. However for
the timing, you know exactly when it is going
On 2011-03-22, bombjack bombjac...@gmail.com wrote:
I am fully aware fo how ntpd should be used, i.e. 24/7/365, but that
is not what I am asking for. As I stated above, I need to make sure
the system clock is roughly (your wrist watch would do) the correct
time ASAP during boot as other
On Tue, Mar 22, 2011 at 11:12 PM, unruh un...@wormhole.physics.ubc.ca wrote:
On 2011-03-23, Hal Murray hal-use...@ip-64-139-1-69.sjc.megapath.net wrote:
You can probably do better than that. That is for the reaction to
something that you do not expect. Ie, you have decide that the event has
ntpd is intended to for continuous, not periodic running. You are not
using it correctly.
Cheers,
David
Thanks for the quick reply.
ntpd does allow us to run this way. From the ntpd man page:
-q Exit the ntpd just after the first time the clock is set.
This behavior mimics that of
Hi,
I would like to know if ntpd would use the driftfile specified in /etc/
ntp.conf file if it is run periodically using crontab with -q option
as below:
/usr/sbin/ntpd -u ntp:ntp -p /var/run/ntpd.pid -g -q -L eth0
I do not find any drift file being created at the specified location.
Thanks
Hi,
I would like to know if ntpd would use the driftfile specified in /etc/
ntp.conf file if it is run periodically using crontab with -q option
as below:
/usr/sbin/ntpd -u ntp:ntp -p /var/run/ntpd.pid -g -q -L eth0
I do not find any drift file being created at the specified location.
Thanks
On Mar 22, 12:18 pm, unruh un...@wormhole.physics.ubc.ca wrote:
On 2011-03-22, prashant sherin pvs...@yahoo.com wrote:
ntpd is intended to for continuous, not periodic running. ?You are not
using it correctly.
Cheers,
David
Thanks for the quick reply.
ntpd does allow us to run
On 2011-03-22, prashant sherin pvs...@yahoo.com wrote:
Hi,
I would like to know if ntpd would use the driftfile specified in /etc/
ntp.conf file if it is run periodically using crontab with -q option
as below:
/usr/sbin/ntpd -u ntp:ntp -p /var/run/ntpd.pid -g -q -L eth0
I do not find any
On 2011-03-22, David J Taylor david-tay...@blueyonder.co.uk.invalid wrote:
Hi,
I would like to know if ntpd would use the driftfile specified in /etc/
ntp.conf file if it is run periodically using crontab with -q option
as below:
/usr/sbin/ntpd -u ntp:ntp -p /var/run/ntpd.pid -g -q -L eth0
On 2011-03-22, prashant sherin pvs...@yahoo.com wrote:
ntpd is intended to for continuous, not periodic running. ?You are not
using it correctly.
Cheers,
David
Thanks for the quick reply.
ntpd does allow us to run this way. From the ntpd man page:
-q Exit the ntpd just after the
He can do that if he wants to. That was why the -q option was designed
into ntpd-- one time setting of the clock time. However it cannot create
a drift file. If he wants a drift file then as you say, he must run it
continuously.
You could look at it that way, Bill, if all he needs is a one-off
Thanks all for the suggestions and explanation.
Regards,
Prashant
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On 3/22/2011 2:56 AM, prashant sherin wrote:
ntpd is intended to for continuous, not periodic running. You are not
using it correctly.
Cheers,
David
Thanks for the quick reply.
ntpd does allow us to run this way. From the ntpd man page:
-q Exit the ntpd just after the first time the
On Mar 22, 4:20 pm, Richard B. Gilbert rgilber...@comcast.net
wrote:
On 3/22/2011 2:56 AM, prashant sherin wrote:
ntpd is intended to for continuous, not periodic running. You are not
using it correctly.
Cheers,
David
Thanks for the quick reply.
ntpd does allow us to run
On Mon, Mar 21, 2011 at 11:38 PM, prashant sherin pvs...@yahoo.com wrote:
Hi,
I would like to know if ntpd would use the driftfile specified in /etc/
ntp.conf file if it is run periodically using crontab with -q option
as below:
That is a rather resource intensive way to run NTP. You use
On 2011-03-22, David J Taylor david-tay...@blueyonder.co.uk.invalid wrote:
He can do that if he wants to. That was why the -q option was designed
into ntpd-- one time setting of the clock time. However it cannot create
a drift file. If he wants a drift file then as you say, he must run it
On 2011-03-22, bombjack bombjac...@gmail.com wrote:
On Mar 22, 4:20?pm, Richard B. Gilbert rgilber...@comcast.net
wrote:
On 3/22/2011 2:56 AM, prashant sherin wrote:
ntpd is intended to for continuous, not periodic running. ?You are not
using it correctly.
Cheers,
David
On 2011-03-22, Richard B. Gilbert rgilber...@comcast.net wrote:
On 3/22/2011 2:56 AM, prashant sherin wrote:
ntpd is intended to for continuous, not periodic running. You are not
using it correctly.
Cheers,
David
Thanks for the quick reply.
ntpd does allow us to run this way. From the
unruh un...@wormhole.physics.ubc.ca wrote in message
news:slrniohmmc.6v5.un...@wormhole.physics.ubc.ca...
[]
ntpd -q is a replacemtn for ntpdate, which was typically run from cron,
and he is doing, and it is an acceptable procedure if for example you
do not want a daemon running which could
On 2011-03-22, David J Taylor david-tay...@blueyonder.co.uk.invalid wrote:
unruh un...@wormhole.physics.ubc.ca wrote in message
news:slrniohmmc.6v5.un...@wormhole.physics.ubc.ca...
[]
ntpd -q is a replacemtn for ntpdate, which was typically run from cron,
and he is doing, and it is an
On 2011-03-22, Chris Albertson albertson.ch...@gmail.com wrote:
On Mon, Mar 21, 2011 at 11:38 PM, prashant sherin pvs...@yahoo.com wrote:
Hi,
I would like to know if ntpd would use the driftfile specified in /etc/
ntp.conf file if it is run periodically using crontab with -q option
as below:
On 3/22/2011 12:07 PM, bombjack wrote:
On Mar 22, 4:20 pm, Richard B. Gilbertrgilber...@comcast.net
wrote:
On 3/22/2011 2:56 AM, prashant sherin wrote:
ntpd is intended to for continuous, not periodic running. You are not
using it correctly.
Cheers,
David
Thanks for the quick
unruh un...@wormhole.physics.ubc.ca wrote in message
news:slrniohsae.ksv.un...@wormhole.physics.ubc.ca...
[]
I have seen the drift out by 400PPM at around the hour mark. ntpd
massively overswings to correct any intial error in the clock ( say a
few ms) , and then gradually
settles back
oh, come off it. Your reaction time is nowhere near what ntp -q would
give you. Using ntp -q run once every hour, and assuming say a 20PPM
drift for the crystal, his clock would be out by less than a 100 ms due to the
drifting, and your reaction time with your watch ( and wyour watch) are
On 3/22/2011 1:22 PM, unruh wrote:
On 2011-03-22, David J Taylordavid-tay...@blueyonder.co.uk.invalid wrote:
He can do that if he wants to. That was why the -q option was designed
into ntpd-- one time setting of the clock time. However it cannot create
a drift file. If he wants a drift file
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