How fast is the internal SSD? Benchmarks range from around 2.7 GB/s up to nearly 20 GB/s. Which are right? Some new figures, in need of more measurements.
performance
How to connect your M1 Mac in Target Disk mode, avoiding an endless restart loop, and how fast to expect it to perform. Plus more on benchmarks.
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.
Apple warns that “Rosetta translation applies to an entire process, including all code modules that the process loads dynamically” – here are some implications.
Your Mac goes all sluggish, you open Activity Monitor, and there at the top of the CPU list is kernel_task, taking 100% or more. Why?
You’re stuck using hard disks with High Sierra or later. Could enabling defragmentation on them overcome the performance problems of APFS?
One solution to running 32-bit apps in Catalina is a VM. Here I assess the performance of Parallels Desktop 15. Is it up to the job?
You can use Signposts readily from scripting languages, shell scripts, even within 3rd party apps, with the aid of these tools.
With a shiny new high-speed Samsung X5 SSD to test, I was looking forward to some real speed. Did it deliver good value for its high price, though?
What should you do with a Mac whose fans keeping coming on full blast, with high CPU loads from kernel_task, and sluggish performance?
The Eclectic Light Company 