How macOS controls CPU P core cluster frequency according to the cluster total active residency, in synthetic in-core tests, compression and when running virtual machines. | Continue reading

Colin Campbell Cooper's skyscrapers on Broadway, Columbus Circle, and Manhattan. George Bellows' human landscapes, and Joseph Stella's Coney Island and Brooklyn Bridge. | Continue reading

We were sat with the Weather app reviewing prospects for the weekend ahead, when we were warned of a significant threat to life or property requiring us to take action immediately. | Continue reading

William Merritt Chase's leafy suburb of Brooklyn in the late 1880s, Robert Henri's Ashcan view of busy streets in the snow, and the first of Colin Campbell Cooper's skyscrapers. | Continue reading

Here are this weekend’s Mac riddles to entertain you through family time, shopping and recreation. 1: Unsolicited crypto, […] | Continue reading

A problem from the first 128K Mac, virtual memory was available from 1987 but only with A/UX. It wasn't really sorted out until Mac OS X, and now it's all Unified anyway. | Continue reading

Interior design by the wives of Carl Larsson (Sweden), LA Ring (Denmark), Nikolai Astrup (Norwegian) and others. | Continue reading

How Spotlight works, Core and global Spotlight, importing failure, exclusions from indexing, re-indexing, excessive re-indexing, failure to find, iCloud Drive and network shares. | Continue reading

Ploughing, sowing, weeding, calving and lambing, the hay harvest, sheep shearing, the grain harvest, fruit harvests, then back again to the start. | Continue reading

macOS logs may only last a few days, or even hours, into the past. Here's a quick and simple way of browsing the log from weeks, months or even years ago. | Continue reading

William Penn's treaty, Peace and War just before the Franco-Prussian War, its Armistice in 1871, and finally paintings of the end of the First World War and the original Cenotaph in London. | Continue reading

A matrix multiplication test appears to be run on the AMX matrix co-processor, and behaves differently from in-core tests. And what Power modes really do. | Continue reading

Allegories using classical deities, by Tintoretto and Rubens. Accounts of how the Sabine women brought peace to Rome, and peace treaties of Charlemagne and Barbarossa. | Continue reading

Try searching for something you know is in a file in ~/Library/Preference and you're unlikely to get any success. This explains how, and why you can't alter that. | Continue reading

Stories of the origin of the Italian pine and cypress trees, and a far more dubious account of Jupiter's abduction that's found in an advert for beer. | Continue reading

I hope that you enjoyed Saturday’s Mac Riddles, episode 283. Here are my solutions to them. 1: Hidden […] | Continue reading

Power use in two in-core performance tests, by number of threads run, leading to estimates of total energy used by P and E cores running the same code, at high frequencies. How efficient are the CPU cores in the M4? | Continue reading

A popular theme for paintings only after Keats' poem was published shortly after his death in 1821. A gruesome love tragedy beloved of the Pre-Raphaelites. | Continue reading

If you're looking for good advice on Macs, Apple's support documentation is often limited, and the Tips app has a long way to go before it's useful. Why not try ChatGPT? Six case studies might be helpful. | Continue reading

Many wonderful paintings of the opening scene of this short story, but none even hints at its real plot involving three abductions and two murders. | Continue reading

Here are this weekend’s Mac riddles to entertain you through family time, shopping and recreation. 1: Hidden folder […] | Continue reading

From the first 8 MHz Motorola 68000, through PowerPCs reaching 2.5 GHz and more in up to 4 cores, and Intel x86 with up to 28 cores, to Apple's M4 Max with 12 P cores at 4.5 GHz. | Continue reading

A dramatic family break-up, Norwegian light and music, a library, ornate decor with a bird cage, and a truly avant-garde interior of 1913. | Continue reading

You use Spotlight to search for something you're sure is there, but it can't find it. Here are some methods to discover why that search failed. | Continue reading

Self-help thatching and maintaining your scythe, blacksmiths hard at work in their forges, a tilt-hammer in another forge, and a tinker fixing pots. | Continue reading

What separates System and Data volumes, and how does macOS know they're part of a boot volume group? What distinguished backup volumes, and what is Sidecar? | Continue reading

Beauties by William Holman Hunt, Gustave Doré, Bruno Liljefors, Vincent van Gogh, Odilon Redon, Richard Dadd and others. | Continue reading

In-core performance compared across P and E cores in M1, M3 and M4 chips shows substantial performance improvements, particularly in vector and matrix computation. | Continue reading

Apple has just released an update to XProtect for all supported versions of macOS, bringing it to version […] | Continue reading

Apple has just released an update to macOS Sequoia, bringing it to version 15.5.1, build 24B2091. This brings […] | Continue reading

Associated with the fire of the underworld, painted into life by Jupiter, attracted by Psyche, hunted on expeditions, in vanitas paintings, or just for their beauty. | Continue reading

Why Spotlight can now take a long time building and updating its volume indexes. Understand when forcing them to be rebuilt is a good idea, and when it isn't. | Continue reading

Newly wed Eurydice is bitten by a snake and dies. Orpheus rescues her from the Underworld, but on their way back he looks back to check on her. All in magnificent paintings. | Continue reading

I hope that you enjoyed Saturday’s Mac Riddles, episode 282. Here are my solutions to them. 1: Scrambled […] | Continue reading

Less glamorous than the P cores, E cores are used to run background threads. Details of their architecture, how threads are managed on them and their efficiency. | Continue reading

Paintings of the wild and undeveloped country in Shinnecock when Chase was teaching summer classes in the closing years of the 19th century. | Continue reading

Are you worried about your Mac maxing out its E cores after starting up in Sequoia? There may be nothing wrong about this, as explained here. | Continue reading

He was invited to teach hundreds of students attending a plein air art school each summer. For 12 consecutive years he taught and painted in the east of Long Island. | Continue reading

Here are this weekend’s Mac riddles to entertain you through family time, shopping and recreation. 1: Scrambled coach […] | Continue reading

ADB, which could fry your Mac's motherboard iif you weren't careful, USB that opened up a new world of different cables and adaptors, and wireless with Bluetooth. | Continue reading

Studio interiors from John Ferguson Weir, Cézanne, Bazille, William Merritt Chase, William McGregor Paxton, Olga Boznanska, and Carl Larsson. | Continue reading

Setting a new (or pre-owned) Mac up can be quick and easy when you use Migration Assistant. When is best, what should you migrate from, and do you need iCloud to help? | Continue reading

From the Middle Ages, strictly regulated for trade between producer and consumer, then dominated by increasingly rich merchants and middlemen. | Continue reading