[CentOS] Fastest way of removing very large number of files?

Fri Aug 23 10:48:55 UTC 2013
Stephen Harris <lists at spuddy.org>

On Fri, Aug 23, 2013 at 12:40:51PM +0200, Dennis Jacobfeuerborn wrote:
> I doubt saving functions calls is going to gain you anything in this 
> case as 99.9% of the time the rm takes is on disk I/O. If you want to 
> reduce the rm time you have to find a way to reduce the disk I/O it 
> requires.


If it's a whole directory (tree) that needs removing then I find

  mv dir dir.o ; mkdir dir ; chown ##:## dir; chmod ### dir ; rm -r dir.o &

type stuff works just fine; the rm can chunk along in the background
while there's now a nice clean empty directory for the application.