[Zhiruo Cao]
> Why does bdflush (kupdated and kflushed) writes to disk periodically
> even though the system is apparently idle. I think if no more new
> buffers becomes dirty, kflushed show not write anything to disk.
kill -STOP {your cron process}
mount all ext2 filesystems with '-o noatime' or at least '-o nodiratime'
Lots of other small things can be done to reduce disk access. I think
you can even 'kill -STOP {kflushd}' (but don't forget to reenable it at
some point).
Peter
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