first time iToddler?

Hector Martin
@marcan42
Well, this is unfortunate. It turns out Apple's custom
NVMe drives are amazingly fast if you don't care
about data integrity.
If you they drop down to HDD performance.
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10:35 Feb 17, 2022 Twitter Web App
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Hector Martin @marcan42
Replying to @marcan42
For a while, we've noticed that random write performance with fsync (data
integrity) on Asahi Linux (and also on Linux on Macs) was terrible. As in
46 IOPS terrible. That's slower than many modern HDDs.
We thought we were missing something, since this didn't happen on
macOS.
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Hector Martin @marcan42
As it turns out, macOS cheats. On Linux, fsync() will both flush writes to
the drive, and ask it to flush its write cache to stable storage.
But on macOS, fsync() only flushes writes to the drive. Instead, they
provide operation to what fsync() does on Linux.
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