How can you tell how much memory is being used by the GPU when both CPU and GPU use Unified Memory? Does it matter anyway?
Apple silicon
Can you get Time Machine to back up faster by turning I/O throttling off? If so, it this something to do only for large backups, or can it be set as the default? Does it also affect other background processes?
Current CPU % given in Activity Monitor can be misleading and has limited value for M1 models. Here’s how to improve it.
In Activity Monitor, % CPU isn’t on a scale of 0-100. In M1 Macs, it also makes no distinction between E and P cores, nor does it allow for their changing frequency.
Each additional Safari window increases WindowServer’s memory use by 1.7 MB on an Intel Mac, but 50 MB on an M1 Mac – thirty times more.
When running some tasks confined to E cores, the original M1 chip from 2020 completes them significantly quicker than an on an M1 Pro. Here’s the detail.
Users and other processes have very limited control over which threads are run on which type of core. As Apple Silicon develops, this is an area set for change.
For the great majority of Mac users, M1 series Macs are a big step forward. But some users want the impossible. What can’t M1 Macs do?
Fixes a bug which could incorrectly report the SSV was disabled on M1 Macs, and improves reporting of M1 Platform Security on non-English systems.
From the anatomy of the CPU cores, to the queues of threads in GCD, and assignment to a core cluster, this details how threads are managed for the M1 series chips.
The Eclectic Light Company 