Bacula-users

Re: [Bacula-users] Large maildir backup

2008-11-27 12:01:14
Subject: Re: [Bacula-users] Large maildir backup
From: Kjetil Torgrim Homme <kjetilho AT linpro DOT no>
To: bacula-users AT lists.sourceforge DOT net
Date: Thu, 27 Nov 2008 17:57:12 +0100
Jesper Krogh <jesper AT krogh DOT cc> writes:

> Can you give us the time for doing a tar to /dev/null of the fileset.
>
> time tar cf /dev/null /path/to/maildir
>
> Then we have a feeling about the "actual read time" for the file of
> the filesystem.

if you're using GNU tar, it will *not* read the files if you dump to
/dev/null.  it will simply stat the files as necessary (you can check
this with strace if you like.)

use /dev/zero to avoid this optimisation.

-- 
regards,          | Redpill  _
Kjetil T. Homme   | Linpro  (_)


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