On Fri, 2021-03-12 at 12:59 +0000, David Williams wrote: > No, I don’t have a lot of small files. As I mentioned, the full backups > weren’t taking that long before the upgrade to Ubuntu 20.04. Not sure why an > OS upgrade would severely increase the time to back up. The machine, hard > drives (SSD’s) are all the same. > > The version of BackupPC that comes with Ubuntu 20.04 is 3.3.2-3 > > Regards, > _____________________________________________ > Dave Williams > > > On Mar 11, 2021, 10:27 AM -0500, backu...@kosowsky.org > <backu...@kosowsky.org>, wrote: > > Sorin Srbu wrote at about 08:31:35 +0100 on Thursday, March 11, 2021: > > > On Wed, 2021-03-10 at 14:04 +0000, David Williams wrote: > > > > I have recently upgraded to Ubuntu 20.04 and since then I have noticed > > > > that my full backups are taking much longer than they used to do. I’m > > > > only using backuppc to bakup two machines at home. The Ubuntu machine > > > > and a Mac laptop. I don’t recall exactly how long the full backups were > > > > taking previously, but now they are taking close to 21 hours. The > > > > content on both machines hasn’t changed much at all since the upgrade > > > > so I was surprised by the increase in time. > > > > > > > > A full backup on the Linux machine is around 892MB. This is the local > > > > machine that Backuppc is installed on. The drive that the backups are > > > > stored on is an SSD as are most, if not all (sorry can’t remember) of > > > > the drives in the Linux box. Backup method is tar. > > > > > > > > A full backup on the Mac laptop is around 700MB. It’s connected to the > > > > same router as the Linux machine via ethernet. Backup method is rsync. > > > > > > > > I’m not sure how to troubleshoot this increase in timing so any help > > > > would be much appreciated. > > > > > > I saw this happening when small files are backed up. > > > > Unless there is a truly pathological number of small files (think tens > > if not hundreds of millions), I don't think you can explain a 21 hour > > backup period. > > > > My Raspberry PI 4 on a home network backs up my Ubuntu 18.04 with > > 2.7GB and 321K files in under 12 minutes. And I think that is with > > several simultaneous backups.
Maybe some OS defaults changed at the OS-upgrade? -- Kind regards, Sorin Srbu Find my OpenPGP public key here: https://cloud.srbu.se/index.php/s/KeEsCCDsG7PZG7N
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