[ltp] HDD access avery 5 seconds?

Kiko Piris linux-thinkpad@linux-thinkpad.org
Thu, 14 Aug 2008 16:21:23 +0200


On 14/08/2008 at 15:15 +0100, Richard Neill wrote:

> Thanks - that's very useful. Just one thing puzzles me: why would ext3  
> flush the journal at all if the machine is idle; if no files have been  
> modified during that period, surely there's no data, nor updates to the  
> journal to be saved to disk?

Mounting filesystems with noatime and nodiratime is crucial.

If not, that means that every file read becomes also a write (filesystem
needs to update atimes).

-- 
Kiko