Re: [Bloat] Graph of bloat

[Dave Taht <dave.taht@gmail.com>]

On Wed, Jul 8, 2015 at 9:11 AM, Jan Ceuleers <jan.ceuleers@gmail.com> wrote:
> On 08/07/15 17:55, Dave Taht wrote:
>> That is a very interesting graph! Does ntp adjust system time backward
>> based on getting nearly all it's samples with well over a 1/2 second
>> of induced delay?
>
> If there is a consistent asymmetrical delay then yes.
>
> If the delay asymmetry is not persistent (but only occurs during up or
> downloads) then the so-called huff-n-puff filter can be used to factor
> it out.
>
> https://www.eecis.udel.edu/~mills/ntp/html/huffpuff.html

Judging from that graphic... I don't think huff and puff was designed
for the bufferbloated era! so the question remains, in hal's tests,
did ntp adjust the clock backwards?


> Jan
>
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-- 
Dave Täht
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