TB5 promises twice the data transfer rate of TB3, and three times that when supporting external displays. How close is it to achieving those?
Apple silicon
It’s time to review old kernel extensions, and uninstall those no longer needed. Here’s how to do that, using uninstallers or manually.
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.
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.
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?
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.
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.
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.
A bug, most probably in the early part of kernel boot in guest macOS, prevents M4 Macs virtualising macOS prior to 13.4.
macOS virtual machines are preferentially run on P cores. Details on their performance, core allocation, frequencies and power use/
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