In <[EMAIL PROTECTED]> [EMAIL PROTECTED] writes:

> Not even "offset is tolerable", but "ok".
>
> What is the standard?

If I recall correctly, when the pool was being run by Adrian von
Bidder, the goal was for pool clients to have get time accurate to
within a second or so.  The goal is not to give ms accuracy.  I don't
think this goal has changed now that Ask Bjørn Hansen is running the
pool.

One of the problems was that Adrian did not have the ability to test
the pool servers from several places around the world.  So, if a given
ntp server happened to have bad connectivity to Switzerland, but good
connectivity from the rest of the world, Adrian's scripts could give
your server a bad score.

As a result, the tolerances are very large.  IIRC, anything under
250ms is considered "good".


> If I were pulling numbers out of the air, I'd call under 10-15 ms "good",
> and under 30-50 ms "tolerable", and beyond that "bad".

Personally, I would like to see the tolerances increased, but probably
not quite as tight as you are asking for.  However, I would much
rather see the problem with the growth rate of clients per server
fixed first.  (And, Ask seems to be doing just that, so no complaints
from here about priorities.)


-wayne
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