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compression

Explainer: Non-lossy compression

Explains how Huffman code works, how it’s used for compressed files, and how other techniques including LZ, LZW and LZFSE differ.

May 28, 2022 Macs, Technology

Efficient resilient storage

Storage has to be reliable, efficient and resilient. However, efficiency and resilience oppose one another. What’s the best solution? New file formats, CRC in the file system, or what?

May 27, 2022 Macs, Technology

Explainer: Compression

Lossy and non-lossy compression explained, with examples and an outline of how JPEG compression is performed.

May 14, 2022 Macs, Technology

Cormorant 1.4: getting more from Apple Archive

Now has three presets to control speed and energy consumption of compression and decompression, together with complete custom control.

May 12, 2022 Macs, Technology, Updates

Inside Apple Archive: performance and control

How to work out how many threads and which cores are needed to achieve a compression rate up to 1.7 GB/s, and how to estimate power and energy.

May 11, 2022 Macs, Technology

Inside Apple Archive: more than a compression format

Provided in Archive Utility and three command tools, its LZFSE compression even supports APFS special files like clones and sparse files.

May 10, 2022 Macs, Technology

Why more apps need speed controls

If apps control the Quality of Service, which sets how macOS allocates them to different processor cores in an M1 chip, how can we have any control?

April 27, 2022 Macs, Technology

How M1 Macs feel faster than Intel models: it’s about QoS

T T Read More

By segregating macOS background tasks on Efficiency cores, M1 Macs can run user apps unfettered on their Performance cores. And that feels really fast.

May 17, 2021 Macs, Technology, Updates

Cores shouldn’t all be the same: M1 Macs do better

T T Read More

How the M1’s asymmetric cores can run background tasks more efficiently, or deliver high performance, according to Quality of Service.

May 14, 2021 Macs, Technology, Updates

Cormorant now supports drag and drop, and can run ten times faster

T T Read More

How can you compress and decompress small files faster? In AppleArchive, just send more of them for processing at the same time.

December 11, 2020 Macs, Technology, Updates

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