On 05/11/12 13:24, Arjen Lentz wrote: > Hi Chris, all > >>> * set 'relatime' mount flag as well; it helps performance on >>> everything, and in ssd cases, avoids a bunch of unnecessary writes. >> >> That's the default on any vaguely modern kernel (set as default in >> 2.6.30 in 2009). :-) > > "With this option enabled, atime data is written to the disk only if the file > has been modified since the atime data was last updated (mtime), or if the > file was last accessed more than a certain length of time ago (by default, > one day)." > > Unless you want to do auditing of read-access, atime is just not relevant. > Incremental backups work on mtime not atime. > > So I use noatime rather than relatime on my SSD laptops, just as we do on > database partitions of servers since obviously there we fully expect there to > be lots of reads and tracking that info is nonsense.
Agreed, I used noatime on my db volumes, and other systems where I know it'll be fine, but if I'm making blanket recommendations to strangers, relatime is safer. _______________________________________________ luv-main mailing list [email protected] http://lists.luv.asn.au/listinfo/luv-main
