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List:       linux-kernel
Subject:    Re: [patch] smarter atime updates
From:       "H. Peter Anvin" <hpa () zytor ! com>
Date:       2001-11-30 23:31:18
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Followup to:  <20011130143011.A20179@netnation.com>
By author:    Simon Kirby <sim@netnation.com>
In newsgroup: linux.dev.kernel
> 
> I've always thought filesystems should mount with noatime,nodiratime by
> default and only actually update atime if specifically mounted with
> "atime", as it's so rarely used.  Out of all of the servers here, none
> actually use atime (every file system on _every_ server is mounted
> noatime,nodiratime).  It's such a waste and just sounds fundamentally
> broken to issue a write because somebody read from a file.
> 
> ...But there's probably some POSIX standard which would make such a
> change illegal.  Blah blah...
> 
> (Not to say that atime isn't useful, but in most cases where it might be
> useful, it is so easily broken by backup processes, etc., that it really
> wants to be a different sort of mechanism.)
> 

Edit /etc/fstab and be happy.  I'm sorry, but you even know why your
request is unacceptable.

	-hpa
-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt	<amsp@zytor.com>
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