[Bloat] Steam In Home Streaming on ath9k wifi

Sun Nov 26 02:29:35 EST 2017

from desktop

Pinging 192.168.1.105 with 32 bytes of data:
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.105:
    Packets: Sent = 100, Received = 100, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Users\xenot>ping -n 100 192.168.1.130

Pinging 192.168.1.130 with 32 bytes of data:
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=5ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=5ms TTL=128
Reply from 192.168.1.130: bytes=32 time=6ms TTL=128
Reply from 192.168.1.130: bytes=32 time=6ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=6ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=8ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=3ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128
Reply from 192.168.1.130: bytes=32 time=4ms TTL=128

Ping statistics for 192.168.1.130:
    Packets: Sent = 100, Received = 100, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 3ms, Maximum = 8ms, Average = 3ms

On Sun, Nov 26, 2017 at 1:25 AM Caleb Cushing <xenoterracide at gmail.com>
wrote:

> ping from laptop
>
> C:\Users\xeno>ping 192.168.1.105 -n 100
>
> Pinging 192.168.1.105 with 32 bytes of data:
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=5ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=4ms TTL=128
> Reply from 192.168.1.105: bytes=32 time=3ms TTL=128
>
> Ping statistics for 192.168.1.105:
>     Packets: Sent = 100, Received = 100, Lost = 0 (0% loss),
> Approximate round trip times in milli-seconds:
>     Minimum = 3ms, Maximum = 5ms, Average = 3ms
>
>
> On Fri, Nov 24, 2017 at 3:35 AM Neil Davies <neil.davies at pnsol.com> wrote:
>
>> On 24 Nov 2017, at 09:20, Hal Murray <hmurray at megapathdsl.net> wrote:
>>
>>
>> neil.davies at pnsol.com said:
>>
>> There are a few more issues - the relative drift between the two clocks
>> can be as high as 200ppm, though typically 50-75ppm is what we observe,
>> but
>> this drift is monotonic.
>>
>>
>> 200 ppm seems pretty high, but not off scale.  If ntpd is running and not
>> getting confused by long queuing delays, it should correct the drift to
>> well
>> under 1 ppm.  If you turn on loopstats, you can graph it.
>>
>>
>> I’m saying that is the maximum rate of drift between two clocks even
>> when they are under NTP control. As you say below the clock rates
>> are not completely stable they are temperature dependent.
>> When we did this with the guys at CERN we could
>> correlate the results with the workload (see below for references).
>>
>> We’ve got ~1M experiments using this approach across various networks,
>> the numbers are what we are seeing in practice.
>>
>> The caveat is that, after a while (i.e several 100s) the clock drift can
>> make
>> a significant difference (i.e a few ms) in the one-way delay estimation.
>>
>>
>> If you are blasting the network and adding long queuing delays, ntpd can
>> easily get confused.
>>
>> There is another quirk to keep in mind.  The temperature coefficient of
>> the
>> crystal is ballpark of 1 ppm per C.  Things can change significantly if
>> an
>> idle system starts flinging lots of bits around.
>>
>>
>> Also NTP can make changes at one (or both) ends - they show up as distinct
>> direction changes in the drift.
>>
>>
>> I'm not sure what you mean by "direction change".  I'd expect a graph of
>> the
>> time offset vs time to be linear and the slope would have a sharp change
>> if
>> ntpd changed it's "drift" correction and/or maybe a rounded bend as a
>> system
>> warmed up.
>>
>>
>> Don’t forget you are measuring the difference in the rates between two
>> NTP clocks,
>> hence the change when one of the NTP systems decides to change the drift
>> rate
>> the relative rate can change direction.
>>
>>
>> ----------
>>
>> Are you happy with whatever you are doing?   Should we try to set things
>> up
>>
>> so ntpd works well enough?  How close would you like the times to be?  …
>>
>>
>> Yep, we’re very happy - we don’t care that there is a linear clock drift
>> (we
>> can correct for that) and the step changes are infrequent and can be
>> eliminated
>> from the long term analysis.
>>
>> You might find §4.4 (esp §4.4.5) and §5.6 in
>> https://cds.cern.ch/record/1504817/files/CERN-THESIS-2013-004.pdf
>> interesting.  It illustrates these sort of issues.
>>
>>
>>
>>
>>
>> --
>> These are my opinions.  I hate spam.
>>
>>
>>
>>
>> _______________________________________________
>> Bloat mailing list
>> Bloat at lists.bufferbloat.net
>> https://lists.bufferbloat.net/listinfo/bloat
>>
> --
> Caleb Cushing
>
> http://xenoterracide.com
>
-- 
Caleb Cushing

http://xenoterracide.com
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