o Now perform `sync`. Every directory entry will be updated, causing
an enormonous amount of wasted CPU cycles and disk activity!
Sync should have done nothing. The disk was never written.
If you execute `ls -R /`, the entire directory structure is again
read from the physical media. Not nice.
The ATIME updates dirty all the inodes.
Later,
David "Sparc" Miller
davem@caip.rutgers.edu