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Old 10-06-2009, 01:53 PM   #1
centosfan
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Intresting article about noatime/relatime


http://blogs.koolwal.net/2009/01/30/...mount-options/
Only thing which is confusing,should i go just with noatime or with combo,noatime and relatime both?
 
Old 10-06-2009, 02:41 PM   #2
AlucardZero
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You decide based on your uses, we're not here to decide for you. Some applications (mutt, ...) depend on atime.
 
Old 10-06-2009, 04:23 PM   #3
salasi
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Quote:
Originally Posted by JACOBKELL View Post
Hmmm, what a disappointing discussion (not here, on the referenced blog).
  • Firstly, in the series in which this fits, he is discussing installation on a USB drive. There are special considerations about writes on a USB drive, but the blogger seems to ignore those when he comes to this page.
  • This is pretty old and well-known stuff, and he doesn't give any dates. (I've just checked the dates on the lkml stuff and that's '07...I could have sworn it was way older than that)
  • From what I remember, there was a long discussion of programs that would fail with noatime set; everyone seemed to feel that someone else had one, but hard evidence of things failing were harder to come by, and I'm not sure that there was ever a confirmed example even though there were lots of suspicions

One of the advantages of the 'many partitions' style of partitioning is that you can set the options appropriately for each partition. And its not such a big deal to turn off noatime (or use relatime) on the volume used by your mail program for its mail storage, if that does turn out to be an issue.
 
Old 10-06-2009, 04:59 PM   #4
centosfan
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Well,i decided to go with noatime tag only,hope it will work.
 
Old 10-18-2009, 11:27 AM   #5
centosfan
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And more question,can i simpy add noatime tag to / mount ?I ask beacuse right now i using noatime tag only on partition which mounts to home directory,so maybe it will be better to put it for entire hard disk.
 
Old 10-18-2009, 11:42 AM   #6
catkin
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Quote:
Originally Posted by JACOBKELL View Post
And more question,can i simpy add noatime tag to / mount ?I ask beacuse right now i using noatime tag only on partition which mounts to home directory,so maybe it will be better to put it for entire hard disk.
It's a per-"file system" thing rather than a per-HDD thing. I've been using it since shortly after starting with Linux and nothing has broken (I don't use mutt). Here's an fstab as an example
Code:
# <file system> <mount point>  <type>      <options>             <dump> <pass>
/dev/CW8/home   /home/c/d      ext3        relatime                   0 2
/dev/CW8/s_opt  /opt           ext4        relatime                   0 2
/dev/CW8/s_var  /var           ext4        relatime                   0 2
/dev/CW8/srv    /srv           ext3        relatime                   0 2
/dev/sda2       /boot          ext3        relatime                   0 2
/dev/sda5       /var/cache/WXP vfat        relatime,rw,umask=000      0 2
/dev/sda6       /              ext4        relatime,errors=remount-ro 0 1
 
  


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