https://bugzilla.novell.com/show_bug.cgi?id=461829 Summary: Partition Tool - Offers 'noatime' when 'relatime' is clearly better Product: openSUSE 11.1 Version: Final Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: YaST2 AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: rob.opensuse.linux@googlemail.com QAContact: jsrain@novell.com Found By: --- atimes - are part of POSIX, but generally little used in Linux Updating atimes, may cause significant write I/O, and performance degredation for systems like webservers, or development where header files are very frequently read. Rather than use 'noatime', the 'relatime' option should be offered, it is superior to noatime. It updates the access time, if it is younger than create or modification time of the file. Therefore it is more compatible with programs that do things like see if the user looked at a file eg) "You have new mail". There's been some recent discussion on LWN.net, involving Ingo Molnar, and Alan Cox over atimes, and performance. In future there may be a yet cleverer 'relatime', which updates the atime if it's not been done for a while, rather than just if it's older than write times of file. That behaviour would permit local file caches and programs like tmpwatch to do a better job, so long as backup software does not alter the atimes of files. Of course it may not happen, but for now relatime is clearly more compatible and safer than noatime, with practically equal performance. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.