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CTS

Exploring Sierra 10.12.5 sleep and wake in the log, 2 DAS and CTS

Sleep interrupts the scheduling and dispatch of background tasks. Here’s how it looks in the dispatching systems.

June 16, 2017 Macs, Technology

An Incomplete List of Sierra’s Dispatched Services

Time Machine backups are but one of 70-80 background services which are run by macOS dispatching systems. Here’s a list of some of the others.

May 31, 2017 Macs, Technology

Watching a Mac losing its grip: background services are vital

When scheduled backups become irregular or stop, this affects much more than just Time Machine. This is what happens, and why you must restart.

May 30, 2017 Macs, Technology

How macOS runs background activities: 4 Using XPC Activity

T T Read More

How scheduling concurrent and background tasks using XPC Activity works, and compares with alternatives such as NSBackgroundActivityScheduler.

May 23, 2017 Macs, Technology

How macOS manages tasks on cores: a draft

Trying to get a more coherent overview of the different paths to concurrent, asynchronous, and background task management in macOS. Draft for discussion.

May 16, 2017 Macs, Technology

How macOS runs background activities: 3 When things go wrong

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When part of the mechanism which schedules and dispatches Time Machine backups fails, those backups become irregular. Here it is shown in a clear diagram.

May 15, 2017 Macs, Technology

How macOS runs background activities: 2 Time Machine backups

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Diagrams how a routine Time Machine backup is scheduled and dispatched using CTS and DAS.

May 14, 2017 Macs, Technology

macOS Sierra bug not fixed: Time Machine backups still stop working

The old bug in macOS Sierra, which has been present since its first release last year, resulting in […]

May 13, 2017 Macs, Technology

How macOS runs background activities: 1 From within an app

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The first detailed account of how macOS Sierra runs many of its background activities, complete with a diagram.

May 13, 2017 Macs, Technology

Taking a clearer look into deepest macOS: DispatchView 0.2b1

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Improvements to help you see the wood from the trees in your logs.

May 12, 2017 Macs, Technology

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