--- smeserver-BackupPC-0.1/root/usr/share/BackupPC/lib/BackupPC/SMEarchive.pm.pbzip2	2010-11-29 10:46:15.000000000 +0100
+++ smeserver-BackupPC-0.1/root/usr/share/BackupPC/lib/BackupPC/SMEarchive.pm	2010-11-29 10:50:37.000000000 +0100
@@ -40,10 +40,11 @@
 $path{wc} = '/usr/bin/wc';
 $path{sudo} = '/usr/bin/sudo';
 $path{gzip} = '/bin/gzip';
-$path{bzip2} = '/usr/bin/bzip2';
+$path{bzip2} = ( -x '/usr/bin/pbzip2' ) ? '/usr/bin/pbzip2' : '/usr/bin/bzip2';
 $path{rsync} = '/usr/bin/rsync';
 $path{tar} = '/bin/tar';
 $path{openssl} = '/usr/bin/openssl';
+$path{nice} = '/bin/nice';
 
 sub checkExec{
 	# On vérifie que les executables sont bien executables
@@ -189,10 +190,10 @@
 		foreach my $host (@hosts){
 			my $cmd = "$path{backuppcBin}/BackupPC_tarCreate -t -h $host -n $backupNum -s $share . ";
 			if (($compress eq 'gzip') || ($compress eq 'bzip2')){
-				$cmd .= "| $path{$compress} -c ";
+				$cmd .= "| $path{nice} -n 10 $path{$compress} -c ";
 			}
 			if (($cipher ne 'off') && (-e $key)){
-                                $cmd .= "| $path{openssl} enc -$cipher -salt -pass file:$key";
+                                $cmd .= "| $path{nice} -n 10 $path{openssl} enc -$cipher -salt -pass file:$key";
 				$extension .= '.enc';
 			}
 			if ($split eq '0'){