| Re: [chrony-dev] [PATCH] MacOS X - Dynamic drift removal interval |
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- To: chrony-dev@xxxxxxxxxxxxxxxxxxxx
- Subject: Re: [chrony-dev] [PATCH] MacOS X - Dynamic drift removal interval
- From: Bryan Christianson <bryan@xxxxxxxxxxxxx>
- Date: Thu, 13 Aug 2015 20:18:30 +1200
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> On 11/08/2015, at 11:56 pm, Miroslav Lichvar <mlichvar@xxxxxxxxxx> wrote:
>
> BTW, when experimenting with multiple sources and longer drift removal
> intervals I think it might be useful to rework the
> get_offset_correction() function to not stop and restart the currently
> running adjustment, but only read the remaining offset with
> adjtime(NULL, &tv), so NTP measurements from sources other then the
> selected peer are not restarting the drift removal. This would also
> reduce the number of adjtime() calls, especially on a NTP server.
>
On MacOS, adjtime(NULL, &rem) is not supported. To implement the above, requires 2 adjtime() calls, one to stop it and one to restart it so I don't think there are any real benefits in doing this.
--
Bryan Christianson
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