[ntp:questions] Use ntpd as a daemon so that it continuously disciplines clock, no

Miroslav Lichvar mlichvar at redhat.com
Mon Jan 17 11:20:24 UTC 2011


On Sat, Jan 15, 2011 at 11:06:43AM -0800, Chris Albertson wrote:
> As for resources ntpd takes up less then you can measure. After it has
> been running for a while it takes up almost zero.  Most of the
> activity is when it first starts up.  So letting it run might use less
> CPU cycle than starting it serval times per day. Running the crontab
> scrip involves starting multiple new processes.  this is a very
> reasource intensive thing to do, much more so then letting ntpd run.

Even when completely idle, ntpd wakes up every second and does quite a
lot (updating timers, scanning the peer hash table, etc). I'd say that
starting ntpd two times per day will take much less resources than
running it continuosly.

-- 
Miroslav Lichvar



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