2023-12-08 20:23 GMT+09:00, yuezhang.mo@xxxxxxxxxxx <yuezhang.mo@xxxxxxxxxxx>: > From: Yuezhang Mo <Yuezhang.Mo@xxxxxxxx> > > When sync or dir_sync is enabled, there is no need to sync the > parent directory's inode if only for updating its timestamp. > > 1. If an unexpected power failure occurs, the timestamp of the > parent directory is not updated to the storage, which has no > impact on the user. Well, Why do you think timestamp sync of parent dir is not important ? > > 2. The number of writes will be greatly reduced, which can not > only improve performance, but also prolong device life. How much does this have on your measurement results?