On Thursday 20 May 2010 02:09:02 Sam Przyswa wrote: > Tyler J. Wagner a écrit : > > On Wednesday 19 May 2010 17:52:29 Sam Przyswa wrote: > >> When the BackupPC_nightly processes are running the SSH login take a > >> very long time to get the prompt and then the machine is very slow to > >> execute task, how to nice these processes ? > > > > My RsyncClientCmd looks like this: > > > > $sshPath -q -x -l root $host /usr/bin/nice -n 19 /usr/bin/ionice -c 3 > > $rsyncPath $argList+ > > > > That uses nice level 19 and ionice 3 (idle disk). > > So I modifed BackupPC line 474 as: > > my $cmd = ["/usr/bin/nice -n 19 /usr/bin/ionice -c 3 > $BinDir/BackupPC_nightly"]; > > But nothing changed when the BackupPC_nightly processes are started all > my others apps are frozen !?
I'm sorry, I misunderstood. I thought you wanted the clients to have minimal impact during backup, not the server. When it is running, you can find out the nice level of BackupPC_nightly with top, and the ionice level with "ionice -p PID". Replace PID with the process ID of BackupPC_nightly. The best way to make your server more responsive is to add RAM (for disk caching), and reduce other functions. My server runs only two things: BackupPC, and syslog-ng (as a network store for all my servers). It can handle 3 simultaneous backups, but SSH login is 150% slower during peak hours. Tyler -- "The belief in immortality has always seemed cowardly to me. When very young I learned that all things die, and all that we wish of good must be won on this earth or not at all." -- Anne Smedley ------------------------------------------------------------------------------ _______________________________________________ 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/
