Re: Apple Catalina Appears to Introduce Massive Jitter - SOLVED!

[Mark Tinka <mark.tinka () seacom com>]

On 10/31/20 01:53, J. Hellenthal via NANOG wrote:

> Heya ! Doug!
>
> Yeah I wouldn’t put this on BT either. On the other hand it seems that whether the scheduler is newreno or cubic that 
> this situation persists pasts my previous suggestions. Seems tho that when you put strain on an upload that the jitter 
> gets considerably worse... 90m out of a 100m link it starts to get to 1000+ms

I noticed this too... when I had the issue, uploads were severely 
impacted (hence my problems pushing files to Youtube).

However, I also noticed the same problem if I am stressing my 100Mbps 
FTTH link pushing a 24GB file to Youtube, as a matter of course. So it 
would make sense that the high jitter caused by Bluetooth, in my case, 
affects uploads more because the wi-fi and Bluetooth chips on the laptop 
are aggressively scanning the environment, which would seem like a Tx 
direction to me.

Mark.