> 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 !?
> 
> Does this cmd line is wrong ?

Check the output of ps with nice value included in output:
  ps -eo pid,nice,user,args

Or use top, which tells you the nice value by default.

Regards,

Chris Bennett
cgb

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