On 01/11 10:35 , Brendan Simon wrote: > I upgraded my BackupPC server from 256MB to 1GB. It still is taking a > long time to backup (over 24 hours for ~40GB using ssh/rsync). I think > the problem is the client. The server is creating a ssh connection to > the client and running rsync on the client. The client has 512MB RAM > and 512MB swap, but the client is a heavily used host (5-10 users, most > of which are running VNC of which some are running GNOME). rsync is > taking about 25% of processing and the swap space is almost completely used.
if the client's swap space is heavily used, it will kill performance. Accesses to disk will often end up being at least 2x as expensive; since memory in use must be written to swap in order to free space in RAM to read new stuff in from disk. So every read of new data from disk also invokes at least a write operation. get more RAM. Everyone will thank you for it. -- Carl Soderstrom Systems Administrator Real-Time Enterprises www.real-time.com ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
