Can you apply noatime on Ext3 partitions at realtime?

Posted by bzero on Ask Ubuntu See other posts from Ask Ubuntu or by bzero
Published on 2012-11-07T10:38:19Z Indexed on 2012/11/07 11:21 UTC
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filesystem

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Performance

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ext3

an application accesses a disk directory containing about 3 million files (including directories). I would like to apply the noatime option for that filesystem and I would like to know whether I can do that while applications are running and accessing that filesystem.

the command I'd apply would look like this:

mount -o remount,noatime /

Any experience with that? I run one single application using the file system, and it is a 100% Java application (1 JVM running).

Ubuntu Version: 9.10 (Karmic)

Thanks!

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