"C. Ronoz" <[email protected]> wrote on 07/26/2011 04:13:28 PM:
> I would love to use BackupPC and if I can get it to speeds of 4 or 5
> MB per second I would be thrilled. I just benchmarked both a
> BackupPC and Bacula back-up (not simultanously) and BackupPC ran 3
> hours, 10 minutes for 15GB, while Bacula did it in 17 minutes.
OK. 15,000MB in 17 minutes = 140Mb/s. That's reasonably sporty for a
backup but perfectly doable. 3 hours is more like 13Mb/s. That is way
too slow. So why is yours running so slow?
What is the CPU utilization during the BackupPC backup? What is the
network utilization? What is the disk utilization? Is the machine
swapping? Is it doing something else?
Start with "vmstat 1" on the BackupPC box and watch it. See what the
usage pattern looks like. Try to find out what is limiting your
performance.
We've been trying to tell you that you're seeing abnormal performance. I
get much better performance with a single 1.5GHz VIA processor, 512MB RAM
and a single SATA spindle. Something is wrong here. We are not going to
be able to tell you what: you will have to dig a little deeper and see
what your machine is doing during a backup.
Timothy J. Massey
Out of the Box Solutions, Inc.
Creative IT Solutions Made Simple!
http://www.OutOfTheBoxSolutions.com
[email protected]
22108 Harper Ave.
St. Clair Shores, MI 48080
Office: (800)750-4OBS (4627)
Cell: (586)945-8796
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