On Sat, Sep 05, 2009 at 06:52:35PM -0600, dan wrote: [...]
> You make a lot more sence here, but I think you overestimate CPU usage. > backuppc is so IO bound that after your get a 2Ghz+ Dual core and 2GB RAM > you can pretty much blame your disks for slow performance. I have a dual > core 2Ghz Opteron with 2GB of ram and 8 drives in a linux raid10 and hard > disk speed is still my bottleneck. I run 4 concurrent backups on that > machine and it does give high system load numbers but still handles the > desktops in the office faster than 3 concurrent while 5 concurrent takes > quite a bit longer to complete. filesystem choice and io scheduler do make a > difference but faster disks is the only real cure. I'd add some memory first. 4GB is so cheap these days and it helps a lot for disk caching. I've seen a performance boost by upgrading from 2 GB to 6 GB on a quad core Xeon which is also heavily I/O bound.oO(I've got to switch to RAID-10, the RAID-5 really kills performance...) Tino. -- "What we nourish flourishes." - "Was wir nähren erblüht." www.lichtkreis-chemnitz.de www.craniosacralzentrum.de ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ BackupPC-users mailing list [email protected] List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
