On Wed, 4 Nov 2009, Mario Goebbels wrote:
Did you disable 'atime' updates for your filesystem? Otherwise the file
access times need to be periodically updated and this would happen may
every 15-30 seconds.
Not disabled. But 20MB worth of metadata updates while the system practically
does nothing? Only real things happening is a video playbacking and XChat
logging relatively few things to disk.
20MB would indeed be quite a lot. On one of my systems, 'iotop'
periodically shows up to 8504 KB of writen data, and no reads. This
is for the root pool. I have a pretty good idea of where that 8504 KB
of data comes from, and it is due to a daemon I have running. On
another system (which still uses UFS root, but with most data in a ZFS
pool), only a few tiny writes (biggest 810KB).
Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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