rsync and many files

[Chris Dunlop]

On 2011-06-07, Kevin Korb <kmk at sanitarium.net> wrote:
>
> A lot of this has to do with the filesystems and operating systems involved.
>
> Since you didn't specify I will guess Linux with ext3.  If that is the
> case run don't walk to ext4.  Also, mount the filesystems with the
> noatime and nodiratime options.  This will prevent every stat() call
> from also writing to the filesystem which can be a huge performance benefit.

Note: noatime implies nodiratime, i.e. no need to use both.

E.g., see http://lwn.net/Articles/245002/