Hi Mark, I'm running a MacBook Pro (Retina, 15-inch, Mid 2015) with Mojave 10.14.6 (latest). I've always had location services off (including all system services within).
I haven't seen any jitter issues on my end. Along with, no matter if I have bluetooth turned on with my wireless mouse and keyboard connected or not, I see no consistent change in jitter. Even further, enabling location services (including all system services within) and bluetooth enabled, I'm not seeing any change in jitter. I know you said earlier this issue seems to have started somewhere _around_ Mojave so just my two cents. -Aaron Oct 30, 2020, 12:08 by mark.ti...@seacom.com: > Hi all. > > So I may have fixed this for my end, and hopefully others may be able > to use the same fix. > > After a tip from Karl Auerbach and this link: > > > https://developer.apple.com/forums/thread/97805 > > ... I was able to fix the problem by disabling Bluetooth. > > However, disabling Bluetooth was not enough. I also had to disable all > Location Services. > > After that, I re-enabled Location Services and only allowed for two > features: > > - NetSpot > - Find My Mac > > With just those two location services, as well as Bluetooth disabled, I > have no more high jitter. > > App performance like Zoom and Youtube uploads are now crisp, with 0.0% > packet loss. > > So looks like that Bluetooth is a huge problem. Confirmed by opening > the "Console" app, and adding "scan" in the filter bar, top right. > > A peak latency of 13.5ms after 300 packets: > > Marks-MacBook-Pro.local(172.16.0.239) > > > 2020-10-30T21:06:05+0200 > Keys: Help Display mode Restart statistics Order of fields quit > > > Packets > Pings > Host > > Loss% Snt Last Avg > Best Wrst StDev > 1.172.16.0.254 > > 0.0% 300 3.1 4.8 > 2.2 13.5 1.9 > > Mark. > >
