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Swift

Last Week on My Mac: Where will all those coders go?

Swift Playgrounds are attracting a lot of young people to learn to code. But what do they do when they’re ready to write ‘proper’ apps? Where are Apple’s guides and example code?

December 2, 2018 Macs, Technology

Updates all round to Blowhole, RouteMap, and the Signpost Kit

At last: RouteMap performs some analysis on your Signposts, and with the other tools can be used to estimate latency, and look at macOS system performance too.

August 21, 2018 Macs, Technology

Taking macOS to the end of time: nanoseconds count

Picking the right time system for the purpose is critical when you want to analyse very short periods. Sometimes it takes time to discover how to juggle with time.

August 20, 2018 Macs, Technology

Last Week on My Mac: Quantum mechanics and Mojave

Doesn’t writing so much to the unified log result in performance penalties? So how can Apple expect us to use the log and Signposts to measure performance?

August 19, 2018 Macs, Technology

Blowhole 7 works around an Xcode bug, and is included in an updated Signpost Kit

Blowhole 7 now writes proper Signposts in Mojave, as well as Pseudo-Signposts in Sierra and High Sierra.

August 16, 2018 Macs, Technology

Working around a bug recently introduced into Mojave: When Signposts point the wrong way

At first I thought it was my mistake. Then it looked like a simple error in the interface. But this bug in Mojave’s signposts is more complex. Here’s a workaround.

August 16, 2018 Macs, Technology

Blowhole, RouteMap, and a Signpost Kit

A new version of Blowhole, the second alpha of RouteMap, and a complete tutorial toolkit to help you get started using log Signposts from Sierra to Mojave.

August 13, 2018 Macs, Technology

Signposts for performance: alpha release of RouteMap

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Do you want to measure performance or get other info from your app or script? Using Signposts is ideal, and here’s the first glimpse of a new tool to harvest them.

August 9, 2018 Macs, Technology

One small change which might break a lot of older apps

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While we’re worrying about 32-bit apps, something else is changing which is likely to stop many more apps from working properly. In the near future.

July 31, 2018 Macs, Technology

Signposts for performance: 2 Instruments

A detailed exploration of how to use Signposts to investigate performance of your code, and the limitations of Apple’s tools.

July 24, 2018 Macs, Technology

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