One of the functions of kernel_task is to help manage CPU temperature by making the CPU less available to processes that are using it intensely. In other words, kernel_task responds to conditions that cause your CPU to become too hot, even if your Mac doesn’t feel hot to you. It does not itself cause those conditions. When the CPU temperature decreases, kernel_task automatically reduces its activity.
So it’s basically kernel_task trying to steal CPU cycles from other processes, so that those processes don’t overheat the system.
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Profile of one of the dives I did in the Maldives, displayed using Subsurface
Download the Virtual COM Port Drivers and reboot your iDevice. After that Subsurface should recognise your Suunto Vyper.
As a diver one logs all his/her dives into a paper logbook. In the paper logbook one generally notes things like the gear used, the volume of air consumed, the buddies you dove with, the diving/weather conditions, special things/animals that were encountered, a description of the dive (or a map), etc.
A photo of my paper logbook
Next to the paper logbook, modern dive computers (which divers use to keep an eye on their depth, remaining bottom time, etc.) also keep digital logs of each dive onto the dive computer itself. Over the weekend I decided to check out Subsurface, a piece of open source software for reading out scuba dives from your dive computer (created by Linus Torvalds, of all people). So I connected my Suunto Vyper to my Mac using the provided USB cable and … nothing – even though the docs state that Subsurface should automatically detect your dive computer.
Checking out System Information.app my Suunto Vyper was indeed connected, yet Subsurface would not recognize it.
PlugBug is made exclusively for all MacBook Power Adapters, including current and previous models. Snap PlugBug onto your MacBook Power Adapter and you now have the first ever device that lets you charge your MacBook + iPad or iPhone simultaneously, from one wall outlet.
Clever. Very clever. For now North America only though (International version is in the making).