NC- APFS slow copy speed [FIXED]

Questions, glitches, bugs and crashes
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bchuter
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Joined: Tue Aug 08, 2017 9:37 pm
Location: Pretoria, South Africa

Re: NC- APFS slow copy speed

Post by bchuter » Sun Jan 07, 2018 2:56 pm

mike wrote:
Sun Jan 07, 2018 4:50 am
A bit of follow-up here.
After some further digging, it appears that the problem on APFS is not in F_PREALLOCATE itself, but in a consecutive ftruncate() syscall.
This doesn't change the whole picture, just a detail.
The Internet already has some WTF posts regarding this behavior.
Ah!

Thanks a mil Mike
Bradley Chuter

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