3 ms·
This is wild. IIRC, the TB3 ports in right side have lower bandwidth, so I've always plugged everything in on the left. I wonder if this is the reason my MBP w
by Rebelgecko 7y ago
This is wild. IIRC, the TB3 ports in right side have lower bandwidth, so I've always plugged everything in on the left.
I wonder if this is the reason my MBP would get sluggish while kernel_task uses a surprising amount of CPU? I always blamed the corporate spyware/antivirus. Maybe I was just charging it wrong
- diebeforei485 7y agoAnyone know if any 2018 and 2019 Macbook Pro models also have slower TB ports on the right side? I recall this being an issue with 2016 and 2017 models (edit: just the 13" models), not sure about more recent ones.
- ashtonkem 7y agoI thought this was different between the 13” and 15” versions.
- diebeforei485 7y agoYou're right - the 15" models always had full speed on all TB3 ports. Do you know if recent 13" models still have slower ports on the right side, though?
- ebg13 7y ago> I wonder if this is the reason my MBP would get sluggish while kernel_task uses a surprising amount of CPU? This happens to me as well while charging if the battery is below ~50%. Start recharging above 50 and it doesn't happen. At some point I took it to an Apple store for an unrelated issue and they told me that their diagnostics flagged a faulty sensor in the internal charging circuitry. I haven't sent it back yet for repair because of the turnaround time involved, but consider that it could be related.
- p_l 7y agoYes - there is no cooling on the TB3 controllers, yet they put out a significant amount of heat, which causes a kernel_task internal thread to intentionally throttle CPU (which shows as high CPU usage). Been driving me mad till I hacked my dock to fit on the right side and connected power on the left, which resulted in better airflow and lower heat generation by the controllers....