Incorrect I/O throttling when using block device files — Matt Jacobson
Matt Jacobson February 2022 Summary: Apple has a bug in its disk I/O throttling code that affects raw disk copies. I walk through my diagnosis. This week, I was restoring a slow-as-molasses 2.5-inch HDD to an SSD, as part of an upgrade for my mom's work machine. For whatever reason, the USB SATA …
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