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Re: Disabling atime



Benjamin Lewis wrote:

Les Mikesell wrote:
I'd expect the RedHat-style approach to this to be: add some file
under /etc/sysconfig like mount-options that contains options that can
be merged with the ones in /etc/fstab and all of the magic
automounting bits (this is probably as important on usb flash drives
as anywhere).

[snip]

There is something which leap out at me as soon a I saw this: the kind
of person who _needs_ atime, knows how to set it.

Yes, just like the kind of person who _needs_ networking knows how to issue ifconfig commands directly to set it up. That doesn't mean that a general purpose way to set it up with the most likely default and a GUI to change it is not an improvement.

The majority of people
- especially the home use - has little or no use for it whatsoever. Its
a bit like the way mount fails on a broken fstab, it assumes that if you
are messing with the fstab you know what you are doing. Equally anyone
who _needs_ atime knows what they are doing and how to enable it.

Except that they may have applications currently in use that rely on the decades old, documented behavior and should not have these broken as a surprise. Let one release go where you encourage people to break these with their own choice and report it, then you'll know what to expect when you break it with the default.

Any sort of fancy /etc/sysconfig trick is more effort than is needed,
when the only change needed to undo it is to remove an option from the
fstab.

atime is not the only mount option that people need to change and a one-off hack for every little thing is not as nice as a general purpose solution that exactly matches the approach of the gazillion other things under /etc/sysconfig, put there for the same purpose.

Just because something was always that way doesn't mean it needs to stay
that way - and whatever the numbers, noatime *does* improve performance.

Agreed, but RedHat-style administration puts changes like this under user control with files under /etc/sysconfig and sometimes provides a GUI tool to modify it. People who don't want this level/style of control are probably using some other OS.

--
  Les Mikesell
   lesmikesell gmail com


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