I have a complex directory structure with lot of small files in it. like: /opt/data/1000/45/32/2009/10/15/76543.zip
When I launch a "du" or "find" on this directory (/opt/data/) my server load increases a lot (0,5 --> 25) and my system doesn't respond any more.
Can I "slow down" the execution of the du/find command to keep my system accessible? I don't care if the command takes 3 days to run :-) I've tried with "nice -n 19" with no success...
Thank you !