Is APFS that much slower than ZFS or btrfs (more comparable Linux file systems) or just ext4? Btrfs is noticeably slower than ext4, but at least all the Mac and Linux file systems are way faster than file operations on Windows :)
Just watched that after I got home from work. I was pleasantly surprised with how in-depth it was. Thanks for sharing it! It does seem like the worst issues he was seeing had to do with parallel IO performance, which is exacerbated by the agent development use case, so for sequential file creation/deletion, APFS is bad but not horrible.