3 ms·
A lot of filesystems don't optimize O_SYNC heavily until it becomes necessary. ext4 has really bad O_SYNC performance until pretty recently FWIW. Given where
by aliguori 15y ago
A lot of filesystems don't optimize O_SYNC heavily until it becomes necessary. ext4 has really bad O_SYNC performance until pretty recently FWIW.
Given where BTRFS is right now development wise, it's not at all surprising O_SYNC hasn't been optimized yet.