Building file list takes hours,how to improve performance?

Jan-Benedict Glaw jbglaw at
Thu Nov 2 07:40:24 GMT 2006

On Thu, 2006-11-02 09:21:45 +0800, woo robbin <robbinwooo at> wrote:
> 2006/11/1, Jan-Benedict Glaw <jbglaw at>:
> >On Wed, 2006-11-01 22:01:07 +0800, woo robbin <robbinwooo at>
> > wrote:
> > > I've backed up some files(about 20G,with many subdirectories and files) a
> > > months ago to an USB drive,and I use rsync to check if there are
> > > changes.After the process,I checked the log file and found no update
> > > needed.But the stats said:
> > >
> > > File list generation time: 8631.470 seconds
> > > File list transfer time: 0.000 seconds
> > 
> > Well, the USB stuff tends to be slow. And untuned filesystems are
> > that, too. If it's ext3, you'd play with the dir_index flag.
> But the USB drive is the target,could it affect the performance of building
> file list process?I just plugged the USB drive to the host and copy and
> paste to do a full backup last time,it seems it's more effective than rsync
> to check updating.

Well, file list generation means to read the complete list of files on
both sides.


      Jan-Benedict Glaw      jbglaw at              +49-172-7608481
Signature of:           Ich hatte in letzter Zeit ein bißchen viel Realitycheck.
the second  :               Langsam möchte ich mal wieder weiterträumen können.
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