https://bugzilla.kernel.org/show_bug.cgi?id=218932 Jan Kara (jack@xxxxxxx) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jack@xxxxxxx --- Comment #7 from Jan Kara (jack@xxxxxxx) --- Not sure where you've got the URL in comment 5 from but it is an ancient version of the documentation. This text has been fixed in 2018. Current version of the documentation is at https://www.kernel.org/doc/html/latest/admin-guide/ext4.html and has: commit=nrsec (*) This setting limits the maximum age of the running transaction to ‘nrsec’ seconds. The default value is 5 seconds. This means that if you lose your power, you will lose as much as the latest 5 seconds of metadata changes (your filesystem will not be damaged though, thanks to the journaling). This default value (or any low value) will hurt performance, but it’s good for data-safety. Setting it to 0 will have the same effect as leaving it at the default (5 seconds). Setting it to very large values will improve performance. Note that due to delayed allocation even older data can be lost on power failure since writeback of those data begins only after time set in /proc/sys/vm/dirty_expire_centisecs. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
