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What happens when an M1 Mac starts up?

When does an M1 Mac validate its Sealed System Volume? Who designed its display interface? How soon does Find My Mac launch? So many answers found in the log.

December 9, 2020 Macs, Technology

Inside M1 Macs: Time and logs

Time has changed in M1 Macs, with the Mach clock ticking every 41.67 nanoseconds. This affects all log entries too, and works differently in Rosetta.

November 27, 2020 Macs, Technology

Mints now provides better volume info, and looks at task scheduling

T T Read More

Adds a new log view of background task scheduling and dispatch, greatly improves volume info, and fixes a rare crash.

October 12, 2020 Macs, Technology, Updates

Last Week on My Mac: Times forgotten

The more you look at changes to Mach Absolute Time coming in Apple Silicon Macs, the more messy they become, largely because the docs are so incomplete.

September 13, 2020 Macs, Technology

How quickly can apps and scripts write to the log?

How long does it take to write a Signpost to the unified log? Measuring this is essential if you’re going to use them to measure performance.

September 10, 2020 Macs, Technology

Measuring performance of code using RouteMap, now a Universal App

T T Read More

Makes it easy to write, harvest and analyse Signposts in the log to measure performance. Important fix for Apple Silicon too.

September 9, 2020 Macs, Technology, Updates

Changing the clock in Apple Silicon Macs

Since we switched to Intel Macs, Mach precision time has ticked away in nanoseconds. That’s won’t be true in Apple Silicon Macs, and could have strange results.

September 8, 2020 Macs, Technology

Using blowhole to write to the log from scripts and apps, with a new Universal binary

How you can write entries in the unified log which are informative, easily retrieved, and extremely simple.

August 31, 2020 Macs, Technology, Updates

Reading a Panic Log in Catalina

Your Mac starts up after kernel panic, and shows mystifying details about that panic. Here’s how to get the most out of that information.

August 11, 2020 Macs, Technology

Understanding ‘crashes’ and kernel panics

What’s the difference between a crash and a panic? How can you tell what’s likely to have caused a panic?

August 10, 2020 Macs, Technology

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