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A comment on Apple's custom NVMes are amazingly fast – if you don't care about data integrity. Parent comment

Re:Apple's custom NVMes are amazingly fast – if you don't ca... by monocasa on Thursday February 17, 2022 @11:16PM (#30382078)
The drive controller is internally parallel. The write is just a job queue submission, so the next write hits while it's still processing previous requests.
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Re:Apple's custom NVMes are amazingly fast – if you don't ca... by marcan_42 on Friday February 18, 2022 @12:30AM (#30382449)
People have tested this stuff on storage devices with torture tests. Can you point at an example of a modern (directly attached) NVMe drive from a reputable vendor that cheats at this?

FWIW, macOS also has F_BARRIERFSYNC, which is still much slower than full syncs on the competition.

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