Re: [BackupPC-users] BackupPC very slow backing up 25GB files

2011-02-03 Thread Jeffrey J. Kosowsky
Les Mikesell wrote at about 12:22:31 -0600 on Thursday, February 3, 2011: > On 2/3/2011 11:33 AM, Carl Wilhelm Soderstrom wrote: > > On 02/03 04:37 , John Goerzen wrote: > >> Transferring it using rsync directly takes 13 minutes. And it has rsync > >> at > >> about 85% CPU usage instead of 9

Re: [BackupPC-users] General questions about the background queue and link commands.

2011-02-03 Thread Jeffrey J. Kosowsky
Robin Lee Powell wrote at about 09:30:17 -0800 on Thursday, February 3, 2011: > On Thu, Feb 03, 2011 at 09:22:00AM -0800, Robin Lee Powell wrote: > > OK, so the question becomes, how do I monitor for general backup > > queue problems? I've had situations where something gets stuck, > > like a

Re: [BackupPC-users] BackupPC very slow backing up 25GB files

2011-02-03 Thread John Goerzen
Les Mikesell gmail.com> writes: > > On 2/3/2011 11:33 AM, Carl Wilhelm Soderstrom wrote: > > And worse for performance, on the server side it has to uncompress the > copy to compute the block checksums unless you have enabled checksum > caching and the file hasn't changed for two runs (maybe

Re: [BackupPC-users] BackupPC very slow backing up 25GB files

2011-02-03 Thread Les Mikesell
On 2/3/2011 11:33 AM, Carl Wilhelm Soderstrom wrote: > On 02/03 04:37 , John Goerzen wrote: >> Transferring it using rsync directly takes 13 minutes. And it has rsync at >> about 85% CPU usage instead of 99%. > > Sounds like you're running into the fact that BackupPC doesn't actually use > 'real'

Re: [BackupPC-users] BackupPC very slow backing up 25GB files

2011-02-03 Thread Carl Wilhelm Soderstrom
On 02/03 04:37 , John Goerzen wrote: > Transferring it using rsync directly takes 13 minutes. And it has rsync at > about 85% CPU usage instead of 99%. Sounds like you're running into the fact that BackupPC doesn't actually use 'real' rsync at both ends of the connection. It has a perl implementa

Re: [BackupPC-users] General questions about the background queue and link commands.

2011-02-03 Thread Robin Lee Powell
On Thu, Feb 03, 2011 at 09:22:00AM -0800, Robin Lee Powell wrote: > OK, so the question becomes, how do I monitor for general backup > queue problems? I've had situations where something gets stuck, > like a nightly job, and the queue gets backed up, and I want to > detect that. > > I guess if I

Re: [BackupPC-users] General questions about the background queue and link commands.

2011-02-03 Thread Robin Lee Powell
On Thu, Feb 03, 2011 at 05:25:48PM +0100, Holger Parplies wrote: > Hi, > > Robin Lee Powell wrote on 2011-02-02 08:12:47 -0800 > [[BackupPC-users] General questions about the background queue and > link commands.]: > > Let me ask some more general questions: What does the > > background queue act

Re: [BackupPC-users] BackupPC very slow backing up 25GB files

2011-02-03 Thread John Goerzen
John Goerzen complete.org> writes: > > So I should add that additional testing shows that it was only the first full > backup that was fast. Every subsequent backup, whether full or incremental, > proceeded at the same very slow pace. rsync pegged at almost 100% CPU on the > machine being back

Re: [BackupPC-users] General questions about the background queue and link commands.

2011-02-03 Thread Holger Parplies
Hi, Robin Lee Powell wrote on 2011-02-02 08:12:47 -0800 [[BackupPC-users] General questions about the background queue and link commands.]: > Let me ask some more general questions: What does the background queue > actually *mean*? from the source (3.2.0beta0, but probably unchanged): #- @