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Pierre Lebeaupin ⚖️⚰️ 30 Nov 18
I could scarcely believe this story of a single global lock in APFS (you'd think they would have avoided reproducing this kind of well-known limitation of HFS+), but it's real, DTrace confirms it in my testing:
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Pierre Lebeaupin ⚖️⚰️
Presumably, Mojave improved the situation from that of High Sierra by optimizing code under the lock and/or moving some processing out of the locked area, but the global lock itself remains
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